Voltage stabiliser for power supply system

FIELD: electricity.

SUBSTANCE: voltage stabiliser for a power supply system, which stabilises load of active power, comprises the first AC-DC and DC-AC converter to convert between AC power and DC power; and a nickel-metal-hydride battery located between and connected to a high-voltage cable at the DC side of the first AC-DC and DC-AC converter and a low-voltage cable at the DC side of the first AC-DC and DC-AC converter.

EFFECT: reduced mass and dimension parameters of a device.

10 cl, 17 dwg

 

The technical field

The present invention relates to voltage regulators for power systems for use in electrificadora railway sector.

Prior art

The scheme of AC power suitable for the supply of electricity at a great distance and provide a large capacity and is therefore used to supply super-fast passenger trains and other vehicles. Electrified railway is a single-phase load. Therefore, it is usually in the traction substation AC three phase-two phase transformer converts the three-phase power received from the power companies and others, one pair of single-phase power with a difference in phase of 90 degrees (for example, see non-patent document 1: "a manual for electrified Railways, published by the Commission on references for electrified Railways, CORONA PUBLISHING CO., LTD., on February 28, 2007, str). As three-phase and two-phase transformer is used transformer Scott (receiving a voltage of 66 kV ~ 154 kV) or a modified transformer Woodbridge (receiving voltage 187 kV ~ 275 kV)in order to eliminate the unbalance of three-phase power source.

In addition, to eliminate voltage fluctuation, is Yahweh substation AC is equipped with a static var compensator (SVC). SVC not only provides reactive power compensation, but also regulates the active power through the use of inverters.

Figa depicts a wiring diagram showing the SVC installed on the side of the power transformer Scott in normal traction substation AC. This SVC is usually called train static voltage stabilizer (RPC). R-phase, S-phase and T-phase are inputs to the three-phase side in the Scott transformer, respectively. The main phase and sub phase represent two single-phase power created by the Scott transformer, respectively. The voltage regulator (RPC) 2A includes inverters 6m and 6t connected to the lines 4 and 4t power in the primary phase and secondary phase, respectively, and the capacitor 20 DC is located between and connected to two inverters 6m and 6t. Trains 8t 8m and move through the use of electrical energy supplied to the supply line 4 and 4t in the primary phase and secondary phase, respectively, as sources of power.

In the Scott transformer if the load in the main phase and the load in the auxiliary phase is balanced, the load on the three-phase side is also balanced. In addition, the fluctuation of the voltage is smaller when the jet powerfully is to be low. Therefore, the stabilizer 2A voltage (RPC) is designed so that the inverters 6m and 6t connected to the main phase and support phase, respectively, provide reactive power compensation, and the two inverter jointly distribute 1/2 of the difference between the active power in two-phase capacity in order to balance the active power in the main phase and the active power in the auxiliary phase, thereby balancing the load on the three-phase side.

FIGU is a connection diagram showing the SVC installed on three-phase side in the Scott transformer. Figs is a connection diagram showing the SVC, in which the inverters are installed in the primary phase and secondary phase in a longer shaft than crossbar transformer Scott, where the main phase and sub phase in the Scott transformer directly connected to each other, and is single phase power via the rejected phase, and these two inverter are connected to each other by a DC adapter. SVC shown in figv, called "three-phase SVC". SVC shown in figs, also called single-phase voltage regulator power supply. Three-phase SVC e includes the inverter 6 and the capacitor 20 DC connected to the inverter 6 and SFC a includes inverters 6m and 6t,and the capacitor 20 DC coupled with inverters 6m and 6t. The inverters 6, 6m and 6t provide reactive power and regulate the active power.

When AC, single-phase circuit, passing from the traction substation AC to the separation of the post, there is a phenomenon (problem). Namely, when the movement of trains occurs a voltage drop due to the active or reactance impedance of the railway supply line, and as a result is not achieved the desired voltage power line to the clamping end of the supply line. To eliminate this phenomenon (problem), a patent document 1 (published published patent application of Japan No. 2000-6693) discloses a voltage regulator power line to the clamping end of the supply line to provide compensation for voltage fluctuation at the clamping end of the supply line through the use of interactive inverter (inverter)connected through an on-line transformer for clamping the end of the supply line. The voltage regulator supply line is designed so that the battery is to provide compensation prolonged fluctuations in active power and the capacitor DC to provide compensation in the short-term fluctuations in active power are connected in parallel on the side DC is an interactive Converter (inverter).

A brief statement of the substance of the invention

Equipment voltage regulator supply line described in patent document 1, the capacitor is DC connected to prevent a voltage drop associated with the reactive power at the clamping end of the supply line and to provide reactive power compensation, and a battery connected to provide compensation prolonged fluctuations in active power. However, the voltage regulator supply line has drawbacks, namely that the capacitor DC requires a large space for installation, reliability is not always high, the cost is high and other

The present invention is the creation of a voltage regulator with a simple hardware configuration, which allows to distribute the active power between the power circuits and regulates reactive power to prevent the voltage drop on the power lines. That is, the present invention is the creation of a voltage regulator without requiring the use of the capacitor, which is inexpensive, compact and small-sized and highly reliable.

The authors of the present invention have conducted studies and found that the necessary capacity has a Nickel-metal hydride battery. The other is the capture, the inventors have discovered that the Nickel-metal hydride battery is not only used as a secondary battery, but is also able to function properly as a capacitor. On this basis, the inventors have invented a configuration in which the voltage regulator of the present invention, the Nickel-metal hydride battery is installed between and connected to a high-voltage cable and cable low voltage Converter AC to DC (AC-DC and DC-DC (DC-AC) for conversion between AC power and DC power to accumulate (accumulate) in the Nickel-metal hydride battery excessive recovered the power supply line and to regulate reactive power to prevent a voltage drop on the power lines. In short, the present invention is an invention using NiMH batteries.

The voltage stabilizer of the present invention includes: an AC-DC and DC-AC Converter for conversion between AC power and DC power; and a Nickel-metal hydride battery located between and connected with cable high voltage on the DC side of the first AC-DC and DC-AC Converter and KAB is LEM low voltage on the DC side of the first AC-DC and DC-AC Converter. That is, the Nickel-metal hydride battery is located between and connected to a high-voltage cable and cable low voltage AC-DC and DC-AC Converter, instead of the capacitor.

The voltage stabilizer of the present invention may further comprise a first transformer, which receives AC power line AC power and supplies the AC power to the power line; and the AC side of the first AC-DC and DC-AC Converter is connected with the side of the reception power or the party filing the power of the first transformer.

In the voltage regulator of the present invention, the first transformer may be a transformer, which converts the received three-phase AC voltage into a two-phase AC voltage with the difference in phase of 90 degrees and delivers the two-phase AC voltage.

The voltage stabilizer of the present invention may further comprise a second AC-DC and DC-AC Converter for conversion between AC power and DC power; and the first transformer is a transformer which converts the received three-phase AC voltage into a two-phase AC voltage and supplies the two-phase voltage is placed alternating current; the first AC-DC and DC-AC Converter connected to the power line, which adopts one of the two-phase voltages supplied from the first transformer; a second AC-DC and DC-AC Converter connected to the power line, which takes more of a two-phase voltages supplied from the first transformer; and Nickel-metal hydride battery is located between and are connected to a common high-voltage cable between the side DC of the first AC-DC and DC-AC Converter and the side DC of the second AC-DC and DC-AC Converter and cable low voltage between the party DC the first AC-DC and DC-AC Converter and the side DC of the second AC-DC and DC-AC Converter.

The voltage stabilizer of the present invention may further comprise a second transformer, which receives AC power line AC power and supplies the AC power to the power line; and a second AC-DC and DC-AC Converter for conversion between AC power and DC power; and each of the first transformer and the second transformer is a transformer that accepts single-phase AC voltage; a first AC-DC and DC-AC Converter connected to the power line, which receives the voltage is s AC issued from the first transformer; a second AC-DC and DC-AC Converter connected to the power line, which receives the AC voltage supplied from the second transformer; and a Nickel-metal hydride battery is located between and connected to a high-voltage cable between the side DC of the first AC-DC and DC-AC Converter and the side DC of the second AC-DC and DC-AC Converter and cable low voltage side DC of the first AC-DC and DC-AC Converter and the side DC of the second AC-DC and DC-AC Converter.

Nickel-metal hydride battery, preferably, has a multilayer structure. Nickel-metal hydride battery, preferably, includes a conductive material containing carbon. The authors of the present invention have found that the capacity of the NiMH battery can be increased, in particular through education Nickel-metal hydride batteries in the multi-layer structure or through the use of a conductive material containing carbon.

Nickel-metal hydride battery may consist of one or more battery modules; and each of the battery modules includes a number of individual panels, each of which includes a plate-like current collector of positive electrode and PLA is tinity the current collector of the negative electrode, which are against each other; a separator positioned between the positive electrode current collector and the current collector of the negative electrode; and a positive electrode element in contact with the current collector of the positive electrode and the negative element electrode in contact with the current collector of the negative electrode; however, the number of individual batteries stacked together so that the current collector of the positive electrode of one of adjacent unit batteries and the current collector of the negative electrode of the other adjacent unit batteries are opposite to each other; and a battery module contains between adjacent unit batteries passage through which flows a gaseous or liquid heat transfer medium.

Between the transformer and AC-DC and DC-AC Converter may be located on the switch.

The voltage stabilizer of the present invention may further comprise a second AC-DC and DC-AC Converter for conversion between AC power and DC power; and an AC side of the first AC-DC and DC-AC Converter is connected with an end section of the first section of the submission; the AC side of the second AC-DC and DC-AC Converter connected to an end part of the second phase is the submission, which is electrically isolated from the first section of the submission; and Nickel-metal hydride battery is located between and are connected to a common high-voltage cable between the side DC of the first AC-DC and DC-AC Converter and the side DC of the second AC-DC and DC-AC Converter and cable low voltage side DC of the first AC-DC and DC-AC Converter and the side DC of the second AC-DC and DC-AC Converter.

These and other objects, features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments with reference to the accompanying drawings.

Through the use of the present invention, the voltage regulator of the present invention is able to distribute the active power between the power circuits and to regulate reactive power to prevent voltage fluctuation on the power lines. Additionally, the voltage regulator of the present invention does not require a capacitor for maintaining a voltage on the power lines.

The voltage stabilizer of the present invention allows to store regenerative electric power, the unspent in a feeding site, the Nickel-metal hydride battery. The voltage regulator nastojasih the invention allows to supply an electrical power to the power line through a discharge Nickel-metal hydride battery, thereby preventing a voltage drop in the supply line. This reduces the impact on the receiving side power, which is caused by rapid fluctuations in the load train. In addition, through the use of voltage stabilizer of the present invention, the train stops in the middle of some portion of the power can be moved to the nearest station by the drive power provided by the Nickel-metal hydride battery, even if the power supply from the system power supply is stopped.

Brief description of drawings

The invention is further explained in the description of the preferred variants of the embodiment with reference to the accompanying drawings, in which:

Figa depicts a circuit diagram of a voltage regulator in accordance with the 1st embodiment of the present invention;

Figv depicts a more detailed diagram of the connections of the voltage regulator in accordance with the 1st embodiment of the present invention;

Figure 2 depicts a view in section of the structure of an exemplary configuration of a single battery, forming a Nickel-metal hydride battery;

Figure 3 depicts a General view of the structure of the frame, the first cover and the second cover unit battery, shown in figure 2;

Figa depicts a view in cross section of the exemplary configuration of the battery module, formed by a single battery;

Figv depicts a partial General view of the battery module in the sample configuration that shows the direction of movement of the air in the heat transfer plate;

Figure 5 depicts a General view of the heat transfer plate for use in a battery module in an exemplary configuration;

Figa depicts a circuit diagram of a voltage regulator in accordance with the 1st embodiment of the present invention, which is mounted on the side of power in the scheme of AC power connected to two transformers for receiving a single-phase AC power;

Figv depicts an example of a power circuit in accordance with the prior art, is connected to two transformers that accept single-phase AC power;

7 depicts a circuit diagram of a voltage regulator in accordance with the 2nd embodiment of the present invention;

Fig depicts a circuit diagram of a voltage regulator according to the 3rd embodiment of the present invention;

Figa and 9B depict the scheme of AC power, comprising a sample application of a voltage stabilizer for the solution of problems related to the speed limit when corruption occurs in the traction post is ncii;

Figure 10 depicts a circuit configuration of the AC power, which includes the device AC power supply that applies a voltage stabilizer of the present invention;

Figa depicts the wiring of rail static voltage regulator (RPC)that is installed on the supply side of the transformer Scott in traction substation AC;

FIGU is a connection diagram three-phase SVC installed on three-phase side in the Scott transformer;

Figs is a wiring diagram of single-phase voltage regulator power (SFC), which in the longer shaft than crossbar Scott transformer, in which the main phase and the phase of the excitation transformer Scott directly connected to each other, and single-phase power is supplied via the rejected phase inverters are located in the main phase and the phase of the excitation, respectively, and these two inverter are connected to each other;

Figa depicts a schematic view of the circuits of AC power, which includes traction And traction, traction substation With two dividing post (SP);

Figv depicts a schematic view of the circuits of AC power, shown in figa when in traction substation In corruption occurs, to the m stops receiving power;

Figs depicts the wiring of a conventional SVC contained in the traction substation, shown in figa.

Description of embodiments of the invention

Below will be described the preferred embodiments of with reference to the drawings.

1. 1st option exercise

Figa depicts the wiring of the regulator 2 voltage power in accordance with the 1st embodiment of the present invention. FIGU is a more detailed diagram of the connections of the regulator 2 voltage in accordance with the 1st embodiment of the present invention.

In the 1st embodiment, the stabilizer 2 voltage is a SVC (static train the voltage regulator and forms RPC mounted on the side of the power supply (flow) in the Scott transformer 3, which receives AC power from the line power supply AC traction substation AC power and supplies the AC power to the power line. R-phase, S-phase and T-phase are inputs in the three-phase side in the Scott transformer 3, respectively. The main phase and sub phase represent two single-phase power phase formed by the Scott transformer 3. In the 1st embodiment, SVC2 includes inverters (AC-DC and DC-AC p is OBRAZOVATEL) 6m and 6t, United on the AC lines 4 and 4t power in the primary phase and secondary phase, respectively, for conversion between AC power and DC power, and Nickel-metal hydride battery 10 that is located between and connected to the cables on the sides DC two inverters 6m and 6t. Train 8m moves through the use of electric power supplied to the line 4m power in the main phase as the source of drive power, and electric 8t moves through the use of electric power supplied to the power line 4t in the auxiliary phase as the source of drive power.

The inverters 6m and 6t contained in the stabilizer 2 voltage of this variant implementation, correspond to the prior art, and each of them includes a rectifier circuit including diodes, the switching circuitry, which includes a set of switching elements, a capacitor, etc. more Precisely, each of the inverters 6m and 6t includes an AC-DC Converter and DC-AC Converter.

Nickel-metal hydride battery 10 is located between and is connected to the input/output ends of the DC two inverters 6m and 6t, which are connected to a common high-voltage cable on the side of the post is permanent current and the input/output ends of the DC two inverters 6m and 6t, which are connected to a common cable low voltage on the DC side.

Below will be described the operation of the stabilizer 2 voltage having the aforementioned configuration. The inverter 6m is connected to the line 4m power, converts the AC power into DC power and supplies the DC power at General cable 7. In addition, the inverter 6m able to convert the DC power on the side of General cable 7 in AC power and feeding the AC power line 4m power. These operations are implemented through the switching elements, built-in inverters, as should be well known. The inverter 6t works exactly the same, and is capable of converting AC power into DC power and the input DC power into AC power.

On lines 4 and 4t power supply connected to the inverters 6m and 6t, respectively fixed voltmeter 5m and voltmeter 5t. In addition, the control unit 9 is provided for the inverters 6m and 6t and connected to voltmeters 5m and 5t. When the electric charge accumulated in the Nickel-metal hydride battery 10 is insufficient, and the voltage Nickel-metal hydride battery 10 is low, the AC power lines 4m and 4t power conversion is used in the DC power through the rectifying action of the inverters 6m and 6t and the charge the Nickel-metal hydride battery 10.

In the stabilizer 2 voltage of this variant implementation, when the voltage on line 4m power is reduced, and a state in which the voltage indicated by the voltmeter 5m, less than the voltage indicated by the voltmeter 5t", unit 9 controls the switching element integrated in the inverter 6m, so that the DC power is converted to AC power and AC power is supplied to the line 4m power supply, thereby preventing the voltage drop on the line 4m power. In addition, the control unit 9 controls the switching element integrated in the inverter 6t, so that the AC power from the line 4t of power converted to DC power, providing compensation for loss of input DC power converted by the inverter 6m in AC power.

On the other hand, when the voltage on line 4m power increases and there is a state in which the voltage indicated by the voltmeter 5m", more "voltage indicated by the voltmeter 5t", unit 9 controls the switching element integrated in the inverter 6m, so that the AC power from the line 4m power is converted to DC power, thereby preventing the increase in the voltage on line 4m power. Simultaneously, the control unit 9 controls the switch the current element, built-in inverter 6t, so that the power of the DC rectified inverter 6m, is converted to AC power and the AC power is thrown in the line 4t of power.

A similar operation occurs when increases or decreases the tension in the line 4t of power. When comparing the voltage indicated by the voltmeter 5m, and voltage indicated by the voltmeter 5t, can be appropriately set the hysteresis to avoid frequent switching.

As described above, the stabilizer 2 voltage regulates the active power in such a way that it is used to eliminate the difference between the voltage on line 4m power supply and voltage on the line 4t of power.

The inverters 6m and 6t regulate reactive power to eliminate voltage fluctuation. That is, the control unit 9 controls the inverters 6m and 6t for adjusting the reactive power generated in the power lines 4 and 4t. More specifically, when the electric 8t 8m and consume reactive power mode using power while driving, the inverters 6m and 6t are working to produce reactive power in electric 8m and 8t. This allows you to maintain the voltage on the line 4m power supply and voltage on the line 4t of power in the desired range.

In the stabilizer 2 voltage in accordance with the 1st option domestic who, made as described above, the inverters 6m and 6t, United respectively with the main phase and support phase, provide reactive power compensation, and these inverters distribute 1/2 of the difference between the active power in the main phase and the active power in the auxiliary phase between the two inverters through the Nickel-metal hydride battery 10, thereby aligning the active power in the main phase and the active power in the auxiliary phase. Thus, power in three phase balanced side.

As described in the technical problem, in that case, if the capacitor is DC connected to the inverters (converters), there are problems, consisting of a large space for installation of capacitor DC, poor reliability and high cost. In order to solve these problems, the authors of the present invention conducted in-depth research and discovered that the Nickel-metal hydride battery has sufficient capacity. In other words, the inventors discovered that the Nickel-metal hydride battery is able to function properly as a capacitor and a secondary battery. Thus, in this embodiment, these problems can be solved by placing either the spruce-metal hydride battery 10 between the cables on the sides DC inverters 6m and 6t, instead of the capacitor DC. In other words, unlike the configuration described in patent document 1, regulator 2 voltage capable of maintaining the voltage supply line by placing a Nickel-metal hydride battery 10 between the cables on the sides DC inverters 6m and 6t, without the use of a capacitor with constant current.

If conventional Nickel-metal hydride battery as the conductive material is a hydroxide of cobalt, in this embodiment, the Nickel-metal hydride battery as the conductive material is carbon. Thus, since carbon forms the electrode, Nickel-metal hydride battery in this embodiment is capable of functioning as an electric double-layer capacitor. Therefore, is provided with a large capacity. In addition, as described below, the Nickel-metal hydride battery 10 in this embodiment, consists of a large number of individual batteries. Therefore, the Nickel-metal hydride battery 10 of this variant implementation has a very large capacity and is properly functioning as a condenser.

Because the Nickel-metal hydride battery of this variant implementation contains carbon as a conductive material, more battery contains carbon is as a conductive material of the positive electrode, the battery consists of a large number of single battery, more battery has a multilayer structure, the equivalent capacitance of the battery is very large.

As should be well known to capacity With flat-plate electrode is expressed by the following formula (formula 1):

C=ε×S/d(formula 1)

where ε is the dielectric constant; S is the area of the flat-plate electrode; d is the distance between the flat-plate electrodes. In this embodiment, S (square flat-plate electrode) may be adopted essentially equal to the area of the separator in the Nickel-metal hydride battery. Each of the number of unit batteries constituting the Nickel-metal hydride battery, which is described below, includes a folded separator, and the unit batteries are stacked together. Thanks to this structure, S (square flat-plate electrode) can be easily increased, and as a result may be provided with a large capacity.

It was found that the capacity of the NiMH batteries of this case for more capacity in the other panels. In a lithium-ion battery charges (ions)required for the formation of the capacitor, otsutstvuet=Q/V, where Q is the charge, V is electric on the potential. Because lithium-ion battery, the charge Q is very small, the container may not be large and essentially equal to zero. Therefore, the capacity of the lithium ion battery has less capacity NiMH battery this option implementation.

Unlike Nickel-metal hydride batteries, lead-acid battery, the area of the electrode (S) may not be increased, and the distance (d) between the electrodes is large, which is associated with its device. This suggests that the capacity of the lead-acid battery is 1/10 or less capacity NiMH batteries. We can say that the capacity of the lead-acid battery has less capacity NiMH battery this option implementation. I must admit that the electric double-layer capacitor has a large capacity, but less storage capacity compared with the battery. Therefore, if air power is to use an electric double-layer capacitor, it is considered that the upper limit of active power, which is able to regulate the voltage regulator is low.

Given the above, the authors of the present invention noticed that the Nickel-metal hydride battery has a large capacity, and tried to use it in the system AC power to elect fitiavana railway. Other batteries may not be applied to the system AC power this way.

1.1. NiMH battery

Below will be described in more detail Nickel-metal hydride battery 10 that is contained in the stabilizer 2 voltage in accordance with the 1st embodiment.

Nickel-metal hydride battery 10 is formed through the battery module (s)that includes multiple series-connected single cells. Nickel-metal hydride battery 10 can be formed through one of the battery module or the serial of the battery module includes a set of series-connected battery modules. Or Nickel-metal hydride battery 10 can be formed by the parallel connection of the individual battery modules or through parallel serial connection of the battery modules. With a parallel connection increases the buffer capacity of the battery and decreases the equivalent internal resistance.

An exemplary configuration of a single battery

2 and 3 are views showing an exemplary configuration of the above-described single battery.

Figure 2 is a view in section, showing the structure of a single battery Sednica battery includes SEB the electrode component 65, includes a separator 61, the plate 62 of the positive electrode, forming the positive electrode, and the plate 63 of the negative electrode, forming a negative electrode, a rectangular frame 67, which forms a space in which co-locates the electrode component 65 and the electrolyte solution, the first cover 69 and the second cap 71. Single battery, shown in figure 2, includes Nickel hydroxide as a main active material of the positive electrode, the alloy-hydrogen battery as the main active material of the negative electrode and an alkaline aqueous solution as the electrolyte solution, as a Nickel-metal hydride secondary battery, which is able to repeatedly charged and discharged.

As shown in figure 3, the first cover 69 includes a section 69A of the base, having a flat-plate shape, closing one hole 67a of the frame 67, and extreme sites made in one piece with the four sides of the base 69A and bent essentially along the four sides of the frame 67b 67 to form the side sections 69b, the closing part of the peripheral surface of the frame 67. As the first cover 69, the second cover 71 includes a section 71A and the base side sections 71b and closes another hole 67 from the frame 67.

As shown in figure 2, the electrode component is UNT 65 has a multilayer structure, in which the plate 62 of the positive electrode and the plate 63 of the negative electrode stacked alternately in a predetermined direction, placed between the separator 61. More specifically, the electrode component 65 is folded structure in which the plate 62 of the positive electrode and the plate 63 of the negative electrode are stacked alternately so that they are positioned against each other, while between them is placed a separator, bent to form the folds. In a single battery, shown in figure 2 and 3, electrode components 65 are folded together in the Y direction from one pair of sides 67b, which are opposite to each other, in the direction of the right and left, to the other side.

When you enable the folded dividers in a single battery, since the area S of the separator is very large, the total capacity of the NiMH battery is very large, Nickel-metal hydride battery, containing a number of individual batteries.

An exemplary configuration of the battery module containing a single battery

Figa is a view in cross section showing an exemplary configuration of the battery module consisting of a single battery, and FIGU is a partial General view of the battery module shown in figa, which shows the direction of movement of the air in the heat transfer plate battery of the module (insulating plates 107 and 108, shown in figa not shown). Figure 5 is a General view of the heat transfer plate for use in the battery module shown in figa and 4B.

As shown in figure 4, the battery module 81 includes a number of individual batteries stacked together, each of which is described above. In the respective unit batteries in the sample configuration, the corrugated separator 101 is located between the current collector 99 of the positive electrode and the current collector 100 of the negative electrode, which are located against each other so that the parts of the separator 101 are alternately near the sites of these current collectors. The separator 101 is not changed, for example, is corrosion resistant in alkaline electrolyte solution and allows ions to penetrate, but does not allow the penetration of the electrons. In addition, in the respective unit batteries, a solution of electrolyte 102 and the plate 103 of the positive electrode containing the active material of the positive electrode, are located in the space formed by the corrugated separator 101 and the current collector 99 of the positive electrode, and a solution of electrolyte 102 and plate 104 of the negative electrode containing the active material of the negative electrode, are located in the space formed by the corrugated separator 101 and the current collector 100 negative the second electrode, so the separator 101 is located between the plate 103 of the positive electrode and the plate 104 of the negative electrode, and the plate 103 of the positive electrode and the plate 104 of the negative electrode are located in a single battery in turn. Corrugated separator 101 allows you to stack plates 103 of the positive electrode plate 104 of the negative electrode in a single battery, containing a number of elements. This allows to increase the capacity of a single battery. In addition, it allows to increase the area of the electrodes and to connect adjacent elements to each other with very low resistance. Therefore, the cable to connect the elements may not be used. In the battery as a whole can be made compact.

The plate 103 of the positive electrode is in contact with the current collector 99 of the positive electrode and the plate 104 of the negative electrode is in contact with the current collector 100 of the negative electrode. Between two adjacent unit batteries is heat transfer plate 96 shown in figure 5, in contact with the current collector 99 positive electrode of one unit battery and the current collector 100 of the negative electrode is the other of a single battery. The direction in which continue holes 97 for air in the heat transfer plate 96 is vertically the m direction of the plate 103 of the positive electrode plate 104 of the negative electrode. In the respective unit batteries, the area between the current collector 99 of the positive electrode and the current collector 100 of the negative electrode is divided by the separator 101 to the positive element electrode and the negative element electrode. The positive element electrode is a portion which is formed by the separator 101 and the current collector 99 of the positive electrode and in which is located the plate 103 of the positive electrode and the negative element electrode is a portion which is formed by the separator 101 and the current collector 100 of the negative electrode and in which is located the plate 104 of the negative electrode.

As shown in figa, the current collector 99 of the positive electrode and the current collector 100 of the negative electrode, each made of a metal having high electrical conductivity and high thermal conductivity, are in contact with the plate 103 of the positive electrode and the plate 104 of the negative electrode, respectively. In addition, the current collector 99 and 100 are in contact with the heat transfer plate 96, which is designed for electrical connection of the current collector 99 of the positive electrode current collector 100 of the negative electrode. In this structure, along the direction indicated by the arrows on FIGU, the heat, the generating system is through my reactions battery, effectively transferred and released to the outside through the air moving through the holes 97 for air heat transfer plates 96. Thus, the temperature of the battery module 81 can be maintained in the desired range within which the reaction battery runs quietly.

As shown in figa, in the end area of the positive electrode provides a common current collector 105 of the positive electrode, and in the end area of the negative electrode provides a common current collector 106 of the negative electrode. In the lateral parts of the battery module 81 is provided an insulating plate 107 and 108, respectively. The connecting pin (not shown) of the positive electrode is attached to the Central area of the common current collector 105 of the positive electrode, and a connecting pin (not shown) of the negative electrode is attached to the Central area of the common current collector 106 of the negative electrode.

The plate 103 of the positive electrode is formed by coating on a substrate, for example, a paste containing the active material of positive electrode, a conductive filler and the polymer, which is mixed with the solvent to form the shape of a plate and otvetit her. The plate 104 of the negative electrode is formed by coating on a substrate, for example, pastes, tereasa active material of the negative electrode, conductive filler and the polymer, which is mixed with the solvent to form the shape of a plate and otvetit her. As the active material of the positive electrode active material of the negative electrode can be used all known active materials. As the conductive filler, there can be used carbon fiber, Nickel-plated carbon fibers, carbon particles, Nickel-plated carbon particles, Nickel-plated organic fibers, fibrous Nickel, Nickel particles, or Nickel foil, separately or in combination. As a polymer, may be used a thermoplastic polymer with a softening temperature of 120°C or less, the polymer with the curing temperature ranging from room temperature to 120°C, the polymer soluble in the solvent, the evaporation temperature of 120°C or below, a polymer soluble in the solvent, soluble in water, or a polymer soluble in the solvent, soluble in alcohol. The substrate may be used a metal plate having conductivity, such as Nickel plate.

The heat transfer plate 96 is formed by coating a Nickel aluminum base. In the heat transfer plate 96 is vertically a number of holes 97 for air in the air channels. Heat erediauwa plate 96 is located between the current collector 99 of the positive electrode and the current collector 100 of the negative electrode and allows air, sucked in through the intake case fan (not shown), to move through the holes 97 for air. The heat transfer plate 96 is the element that is in contact with the current collector 99 of the positive electrode and the current collector 100 of the negative electrode for electrical connection of the current collector 99 of the positive electrode current collector 100 of the negative electrode and has thermal and electrical conductivity. As the heat transfer plate 96 may be used aluminum because it has a relatively low electrical resistance and a relatively high conductivity, however, it is easily oxidized. With this in mind, more preferred for use as the heat transfer plate 96 is Nickel-plated aluminum plate as a plating not only prevents oxidation, but also reduces the contact resistance.

Electromotive force and the capacity of the NiMH battery

Below you will see the specific numerical values of the electromotive force and capacity Nickel-metal hydride battery 10 used in this embodiment, preferably, the multilayer Nickel-metal hydride batteries. In the voltage regulator of this variant implementation, the Nickel-metal hydride battery m what can be done in different ways. For example, 19 of the battery modules, each including 30 of unit batteries connected in series, forming a serial battery module, and two serial number of the battery modules are placed in parallel. The estimated digital values of the standard characteristics of single cells are, for example, electromotive force, equal to 1.25 V, battery capacity equal to 150 a·h capacity 130 f/A·h capacity of a single element, etc.

In this case, the electromotive force NiMH batteries equal to 1.25×30×19=712,5 Century the capacity of the NiMH battery is 2×130×150 (30×19)=approximately 68 Farad. It should be understood that the Nickel-metal hydride battery that is included in the voltage regulator of this variant implementation, has a very large capacity.

As described above, it was found that equivalent capacity Nickel-metal hydride battery 10 of this variant implementation is very large. Through the use of Nickel-metal hydride battery 10 in the system AC power, you can not use a capacitor with constant current, which requires a large space for installation.

1.2 the Modified example 1 of option exercise

The voltage regulator is shown in figure 1, represents the SVC installed on the supply side of the Tr is nsformatter Scott, which receives three-phase AC power. The voltage regulator is the 1st option may not be installed in the transformer, which receives a single-phase AC power. 6 is a circuit diagram of a voltage regulator in accordance with the 1st embodiment of the present invention, which is installed on the side of the power supply circuits of alternating current connected to two transformers 23a and 23b that accept single-phase AC power. FIGU is a circuit diagram of a comparative example of the arrangement of AC power connected to two transformers 23a and 23b that accept single-phase AC power.

In the voltage regulator shown in figa supply line contain breakers 22A and 22b, which are able to interrupt the supply of power from the transformers 23a and 23b, respectively. Between the transformer 23a and inverter 6A is a switch 24A, and between the transformer 23b and the inverter 6b is a switch 24b. The operation of the switches 24A and 24b are described in section 4. An example application of the present invention".

As shown in figa, by connecting the voltage regulator 1 variant implementation with two transformers 23a and 23b that accept single-phase mo is of alternating current, you can not use the capacitor DC. Single-phase AC power may be a two-phase or three-phase AC power. The voltage regulator this option may not be applied to a configuration in which two single-phase transformers connected in a V-shaped scheme, take three-phase AC power and serves the AC power in the respective directions.

2. 2nd option exercise

7 is a wiring diagram of the stabilizer 202 voltage in accordance with the 2nd embodiment of the present invention. The stabilizer 202 voltage in accordance with the 2nd embodiment is a three-phase SVC installed at the receiving side (three-phase side) in the Scott transformer 3 in traction substation AC. R-phase, S-phase and T-phase are inputs to the three-phase side in the Scott transformer 3, respectively. The main phase and sub phase represent two single-phase power, formed on the side of the power transformer Scott 3, respectively. SVC 202 2nd variant implementation includes the inverter 6 is connected at its AC-side phase inputs, respectively, and Nickel-metal hydride battery 10, the connection is United with the side of constant current in the inverter 6.

The inverter 6 is similar to the inverter in accordance with the prior art. Nickel-metal hydride battery 10 is located between and is connected to the input/output end of the constant current inverter 6, which is connected with cable high voltage on the DC side, and the input/output end of the constant current inverter 6, which is connected to the cable low voltage on the DC side.

In the air conditioner 202 power of the 2nd variant implementation, the Nickel-metal hydride battery 10 is connected to the inverter 6, mounted on the three-phase side, to compensate reactive power and regulate the active power. This allows not to use a capacitor with constant current.

Because the Nickel-metal hydride battery 10 has a large capacity and is properly functioning as a condenser, unlike the configuration described in patent document 1, the stabilizer 202 voltage this option has the potential to maintain a desired voltage on the three phase side without using capacitor DC.

3. The 3rd option exercise

Fig is a wiring diagram of the stabilizer 402 voltage according to the 3rd embodiment of the present invention. The stabilizer 402 voltage in accordance with the 3-m variations is that the implementation is a single-phase voltage regulator power (SFC). Single-phase voltage regulator power (SFC) are made so that the inverters 6m and 6t installed in the primary phase and secondary phase in a longer shaft than crossbar the Scott transformer, which provides single-phase power via the rejected phase formed by direct connection of the main phase and secondary phase in the Scott transformer 3, and the two inverter 6m and 6t are connected to each other.

On Fig, R-phase, S-phase and T-phase are inputs to the three-phase side of the Scott transformer 3, respectively. The main phase and sub phase represent the two phases formed by the Scott transformer 3, respectively. The stabilizer 402 voltage according to the 3rd embodiment includes inverters 6m and 6t, United with the main phase and support phase, respectively, and Nickel-metal hydride battery 10 connected to the inverters 6m and 6t. The inverters 6m and 6t similar to the inverters in the voltage regulator in accordance with the prior art.

In the stabilizer 402 voltage 3-rd variant implementation, the Nickel-metal hydride battery 10 is connected to the inverters 6m and 6t provided in the main phase and support phase, respectively, to compensate reactive power and regulate the active power. This call is employed, do not use capacitor DC.

Because the Nickel-metal hydride battery 10 has a large capacity and is properly functioning as a condenser, unlike the configuration described in patent document 1, the stabilizer 402 voltage of this variant implementation is capable of maintaining the voltage on the supply line without the use of a capacitor with constant current.

4. An example application of the present invention

Below will be described examples of the application of the present invention.

Figa is a schematic view of the circuits of AC power, which includes traction And traction, traction substation With two dividing post (SP) 51 and 52. It is assumed that each traction substation includes railway static power conditioner (RPC) 2A, which is a conventional SVC. FIGU is a schematic view of the circuits of AC power, which includes traction And traction, traction substation With two dividing post (SP) 51 and 52, when the damage, which stops receiving power, occurs in the traction substation And in the scheme of AC power, shown in figa. Figs is a wiring diagram of conventional RPC 2A, showing the state in which the damage, which stops the reception power is large, occurs in the traction substation.

First, assume that the damage, which stops receiving power, occurs in the traction substation In the scheme of AC power, shown in figa. As a result, the connection status in the scheme of AC power is changed to the state shown in figv. That is, as shown in figv, dividing the post 51 between the traction substation and traction substation In electrically connecting the site from the traction substation And to the separation of the post 51 with a plot of the separation of the post 51 to the traction substation and the train continues to move in condition, when the section from the traction substation And to the traction substation is one auxiliary feeding site. In this case, the secondary section of the power supply electric power only from the traction substation A.

Similarly, dividing the post 52 between the traction substation and traction substation With electrically connects the area from the traction substation to the separation of the post 52 with a plot of the separation of the post 52 to traction substation and the train continues to move in condition, when the section from the traction substation to the traction substation With is one auxiliary feeding site. In this case, the secondary plot of the pit is of supplied electric power only from the traction substation C.

Usually in the scheme of AC power when the damage, which stops receiving power, occurs in the traction substation, are driven breakers 22m and 22t provided between the traction substation and power lines, to stop the supply of electric power, as shown in figs. As a result, the train can move in the area between the traction substation and traction substation and the area between the traction substation and traction substation With, but the speed will be largely limited because the supplied power is reduced by half.

On figa shows a diagram of AC power, comprising a sample application of the voltage stabilizer of the present invention. The scheme of AC power eliminates the problem associated with the speed limit in the case when corruption occurs in the traction substation in the usual scheme of AC power. The upper part figa is a schematic depiction of a circuit AC power, includes traction And traction, traction substation With two dividing post (SP) 51 and 52, and the lower part figa shows the connection diagram voltage regulator of the present invention, which is included in each traction podstat the Y. The voltage regulator is similar train static voltage regulator (RPC), shown in figure 1. The voltage regulator includes a Nickel-metal hydride battery 10 instead of the capacitor 20, which is located between the cables on the sides DC inverters 6m and 6t connected with the main phase and support phase, respectively, in the configuration shown in figs. The voltage regulator shown in figa, in addition to breakers 22m and 22t, includes switches 24m and 24t.

The upper part figv shows the status of connections feeding sites where damage, which stops receiving power, occurs in the traction substation In the scheme of AC power, shown in figa. As shown in the upper part figv, dividing the post 51 between the traction substation and traction substation In electrically connecting the site from the traction substation And to the separation of the post 51 with a plot of the separation of the post 51 to traction substation Century, Dividing the post 52 between the traction substation and traction substation With electrically connects the area from the traction substation to the separation of the post 52 with a plot of the separation of the post 52 to traction substation C.

The lower part figv indicates the state of the voltage regulator in the case when the damage of the discussion, which stops receiving power, occurs in the traction substation Century In the voltage regulator shown in the lower part figv, switches 24m and 24t are in the "off"position, and the breakers 22m and 22t not powered (i.e., the power is on). Therefore, the right plot of power and the left plot of traction power substation are connected to each other via a voltage regulator, located between them, and supplied with power from a Nickel-metal hydride battery 10. Thus, the section from the traction substation And to the traction substation and the area from the traction substation to the traction substation With an auxiliary feeding sites by ensuring the connection of the separation of the posts 51 and 52. In addition, the traction substation and traction substation With are electrically parallel power state, resulting in an electric car, moving at the auxiliary feeding sites may continue normal movement.

5. Application in the separation post

The voltage stabilizer of the present invention made with the possibility of application in the separation posts. Figure 10 is a view of circuit configuration of the AC power, which includes the device 50 AC power, in which a biasing voltage is of Azania of the present invention. The scheme of AC power, shown in figure 10, includes a bottom line 120 and the top line 140. In addition, the scheme of AC power, shown in figure 10, includes traction substation (SS) 40A and 40b and the dividing post (SP) for power distribution. In fact, they are located along the electrified railway line. Dead area 110 is located between the right and left power circuits relative to the traction substation (SS) 40A and relatively traction substation (SS) 40b. The area between the traction substation (SS) 40A and the dividing post (SP) 200 and the area between the traction substation (SS) 40b and the dividing post (SP) 200 are referred to as "sites supply". The configuration shown in figure 10, is a part of the circuit of AC power can be provided more traction substation (SS) 40A and 40b and more dividing points (SP) 200.

Each of the traction substations (SS) 40A and 40b includes three phase-two phase transformer 300 and supplies the two-phase electric power primary phase and secondary phase in the left and right power scheme, respectively. During normal movement, the breaker 220 provided in each of the main phase and support phase is not driven, and the circuit is closed. When corruption occurs in the traction substation (SS) 40A Il is 40b, or in the power system, the switch 220 is actuated and opens the schema.

Dividing post (SP) 200 includes a circuit breaker 60. The switch 60 is normally open. If corruption occurs in any one of the left traction substation (SS) 40A and the right traction substation (SS) 40b separation of the post 200, and thus stops the supply of power from the left traction substation (SS) 40A or right traction substation (SS) 40b, the switch 60 is closed, and power is given from the left traction substation (SS) 40A or right traction substation (SS) 40b, in which damage does not occur in the feeding site, which is located left of the traction substation (SS) 40A or right traction substation (SS) 40b, in which there is damage to the outside of the barrier post (SP) 200.

As shown in figure 10, the device 50 AC power, located in the separation position (SP) 200 of this variant implementation, includes two inverter (AC-DC and DC-AC Converter) 6A and 6b, which convert the AC power in the power supply to the DC power and converts the DC power into AC power, and Nickel-metal hydride battery 10 that is located between and connected to the high-voltage cable (positive) and cable low voltage (negative) on the sides of the post is permanent current two inverters (AC-DC and DC-AC converters) 6A and 6b. That is, the Nickel-metal hydride battery 10 is located between and is connected to the input/output ends of the DC inverters 6A and 6b, which are connected to a common high-voltage cable (positive) on the DC side, and the input/output ends of the DC inverters 6A and 6b, which are connected to a common cable low voltage (negative) on the DC side.

The inverter 6A is connected at its AC-side with the cable 4A AC, connected with an air line, converts the AC power into DC power and outputs the DC power at General cable General cable high voltage and common cable low voltage) 7. The inverter 6A also made with the possibility of conversion of input DC power into a common cable 7 on the DC side to the AC power and supply the AC power cable 4A AC. In this case, as described above, the Nickel-metal hydride battery 10 functions as a condenser, and a secondary battery. These functions are realized through the switching element integrated in the inverter, as should be well known. The inverter 6b operates in the same manner and configured to convert power from AC to power the DC and conversion of input DC power into AC power.

The 5A voltmeter and voltmeter 5b fixed to the cables 4A and 4b and is connected to the inverters 6A and 6b, respectively. In addition, the control unit 9 is provided for the inverters 6A and 6b and is connected to voltmeters 5A and 5b. When the electric charge accumulated in the Nickel-metal hydride battery 10 is insufficient, and the voltage Nickel-metal hydride battery 10 is low, the AC power cables 4A and 4b AC is converted to DC power by rectifying action of the inverters 6A and 6b, and charge the Nickel-metal hydride battery 10.

In the device 50 AC power of this variant implementation, when the tension in the cable 4A AC is reduced, and a state in which the voltage indicated by the voltmeter 5A", less "voltage indicated by the voltmeter 5b, the control unit 9 controls the switching element integrated in the inverter 6A, so that the DC power is converted to AC power and AC power is supplied to the cable 4A AC, thereby preventing a voltage drop in the cable 4A AC. In addition, the control unit 9 controls the switching element integrated in the inverter 6b, so that the AC power cable 4b AC is converted to power DC current is, to provide compensation for loss of input DC power converted by the inverter 6A in AC power.

On the other hand, when the voltage in the cable 4A AC increases and there is a state in which the voltage indicated by the voltmeter 5A", more "voltage indicated by the voltmeter 5b, the control unit 9 controls the switching element integrated in the inverter 6A, so that the AC power cable 4A AC is converted to DC power, thereby preventing the increase of the voltage in the cable 4A AC. Simultaneously, the control unit 9 controls the switching element integrated in the inverter 6b, so that the power of the DC rectified inverter 6A is converted to AC power and the AC power outputted cable 4b AC.

A similar operation occurs when increases or decreases the tension in the cable 4b AC. When comparing the voltage indicated by the voltmeter 5A, and the voltage indicated by the voltmeter 5b, may be appropriately set the hysteresis to avoid frequent switching.

As described above, the device 50 AC works so as to eliminate the difference between the tension in the cable 4A AC is an eye and the tension in the cable 4b AC.

Compared with the conventional device is AC power, containing a capacitor instead of Nickel-metal hydride battery 10, the Nickel-metal hydride battery 10 of this option has the potential to accumulate a very large number of electric charges, because it is a secondary battery. Because the Nickel-metal hydride battery 10 may be allocated a greater amount of electrical power from the cable 4A AC, the ability to absorb regenerative electric power is high.

In the device 50 AC power of this variant implementation, if at some point (for example, when the movement of trains through the power consumption) occurs, the need for higher power capacities in any one of the right and left sections of the power dividing positions (SP) 200, the voltage at the site of the power becomes lower than the voltage at another part of the power. Then, as described above, the inverters 6A and 6b are driven, causing the electrical power to move in the feeding site, where the voltage is lower than in other part of the power. This prevents the voltage drop in the air line feeding site, which requires electric power.

In that case, if the regenerative electric power GE is elirueda in any one of the right and left sections of the power dividing positions (SP) 200, the voltage on a given area of power becomes higher. Then, as described above, the inverters 6A and 6b are driven so that a large part of the electric power feeding site, where the voltage is higher, accumulates in the Nickel-metal hydride battery 10, and a part of electric power is being transmitted to another feeding site. This prevents an increase in tension in the air line feeding site, where the generated regenerative electric power. In addition, since the generated regenerative electric power can be accumulated in the Nickel-metal hydride battery 10, the regenerative electric power can be used efficiently without waste. In addition, since the ability to absorb the regenerative electric power is high, it is possible to prevent the suppression of recovery.

That is, through the use of inverters 6A and 6b and Nickel-metal hydride battery 10, the electric power of the two traction substations (SS) 40A and 40b with different phases may be supplied to the site feed, connected in parallel.

For example, suppose in the example shown in figure 10, the train is moving in the acceleration mode just at the left side in the separation post (SP) on the plot of feed between the left traction substation (SS) 40A and share is determined as being post (SP) 200. This accelerating train can take electric power required for acceleration from either the left traction substation (SS) 40A and the right traction substation (SS) 40b. In other words, in this embodiment, the dependency on electric power from the left traction substation (SS) 40b is reduced by about half. Thus, the load is evenly distributed between the traction substations, thereby preventing the voltage drop at a feeding site, where the vehicle moves in the acceleration mode.

Numerous modifications and alternative embodiments of the present invention will be obvious to a person skilled in the art given the above description. Therefore, the description should be considered only as explanatory, and are given in order to indicate to the experts in this technical field preferred embodiment of the invention. Details of the construction and/or function can be changed essentially without departing from the invention.

The reference list of items

2, 202, 402the voltage regulator
3transformer Scott
4m, 4tline power
5m, 5tvoltmeter
6, 6m, 6t, 6a, 6binverter
7General cable
8, 8m, 8ttrain
9the control unit
10NiMH battery
22A, 22b, 22m, 22tNC
23a, 23btransformer
24a, 24b, 24m, 24tswitch
51, 52dividing post (SP)
65electrode component
67frame
69the first cover
72the second cover

1. Voltage stabilizer for power system containing:
the first AC-DC and DC-AC Converter for the implementation of the transformation of the project between AC power and DC power; and
Nickel-metal hydride battery located between and connected with cable high voltage on the DC side of the first AC-DC and DC-AC Converter and cable low voltage on the DC side of the first AC-DC and DC-AC Converter
moreover, the Nickel-metal hydride battery includes a conductive material containing carbon, and is made with the ability to operate as an electric double-layer capacitor.

2. The voltage regulator according to claim 1, further comprising: a first transformer, which receives AC power line AC power and supplies the AC power to the power line and the AC side of the first AC-DC and DC-AC Converter is connected with the side of the reception power or party supply power to the first transformer.

3. The voltage regulator according to claim 2, in which the first transformer is a transformer which converts the received three-phase AC voltage into a two-phase AC voltage with the difference in phase of 90° and delivers the two-phase AC voltage.

4. The voltage regulator of claim 1, wherein the Nickel-metal hydride battery has a multilayer structure.

5. The voltage regulator according to claim 2, additionally containing:
the second AC-D and DC-AC Converter for conversion between AC power and DC power;
moreover, the first transformer is a transformer which converts the received three-phase AC voltage into a two-phase AC voltage and supplies the two-phase AC voltage;
the first AC-DC and DC-AC Converter connected to the power line, which adopts one of the two-phase voltages supplied from the first transformer;
the second AC-DC and DC-AC Converter connected to the power line, which takes more of a two-phase voltages supplied from the first transformer; and
Nickel-metal hydride battery is located between and are connected to a common high-voltage cable between the side DC of the first AC-DC and DC-AC Converter and the side DC of the second AC-DC and DC-AC Converter and cable low voltage side DC of the first AC-DC and DC-AC Converter and the side DC of the second AC-DC and DC-AC Converter.

6. The voltage regulator according to claim 5, further comprising:
a first switch located between the first transformer and the first AC-DC and DC-AC inverter;
a second switch located between the first transformer and the second AC-DC and DC-AC Converter.

7. The voltage regulator according to claim 2, additionally containing:
a second transformer that receives power p is belt-driven current from the line of AC power and supplies the AC power to the power line; and
the second AC-DC and DC-AC Converter for conversion between AC power and DC power;
each of the first transformer and the second transformer is a transformer that accepts single-phase AC voltage;
the first AC-DC and DC-AC Converter connected to the power line, which takes the AC voltage supplied from the first transformer;
the second AC-DC and DC-AC Converter connected to the power line, which takes the AC voltage supplied from the second transformer;
Nickel-metal hydride battery is located between and connected to a high-voltage cable between the side DC of the first AC-DC and DC-AC Converter and the side DC of the second AC-DC and DC-AC Converter and cable low voltage side DC of the first AC-DC and DC-AC Converter and the side DC of the second AC-DC and DC-AC Converter.

8. The voltage regulator according to claim 7, further comprising:
a first switch provided between the first transformer and the first AC-DC and DC-AC Converter; and
a second switch provided between the second transformer and the second AC-DC and DC-AC Converter.

9. The voltage regulator according to claim 1,
in which n is Kel-metal hydride battery is made of one or more battery modules;
each of the battery modules includes a number of individual panels, each of which includes a plate-like current collector of the positive electrode plate and the current collector of the negative electrode, which are provided facing each other; a separator positioned between the positive electrode current collector and the current collector of the negative electrode; a positive electrode element in contact with the current collector of the positive electrode, the negative element electrode in contact with the current collector of the negative electrode; and a number of individual batteries stacked together so that the current collector of the positive electrode of one of adjacent unit batteries and the current collector of the negative electrode of the other adjacent unit batteries are opposite to each other, and the battery module has between adjacent unit batteries passage through which flows a gaseous or liquid heat transfer medium.

10. The voltage regulator according to claim 1, additionally containing:
the second AC-DC and DC-AC Converter for conversion between AC power and DC power;
the AC side of the first AC-DC and DC-AC Converter is connected with an end section of the first section of the feeder;
sides of the AC second AC-DC and DC-AC Converter connected to an end part of the second section of the filing, which is electrically isolated from the first section of the submission; and
Nickel-metal hydride battery is located between and are connected to a common high-voltage cable between the side DC of the first AC-DC and DC-AC Converter and the side DC of the second AC-DC and DC-AC Converter and cable low voltage side DC of the first AC-DC and DC-AC Converter and the side DC of the second AC-DC and DC-AC Converter.



 

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1 dwg

FIELD: electricity.

SUBSTANCE: method of accelerated charge for fixed lead accumulators with pasted electrodes involves double-staged charging of charging capacity; at the first stage it is charged by current equal to 0.2^0.3 Cu (Cu means capacity at 10-hour discharge mode) till voltage equal to 2.3 (H2, 45V) is reached; at the second stage charge is charged by the specified voltage at smooth current decrease. Charging is completed when recharge coefficient is reached (ratio of capacity received at the next charging to capacity received at the previous charging), equal to 0.95 +• 1.05 with normal charging after 2-3 accelerated charges.

EFFECT: creating accelerated charge without deterioration of characteristics.

2 cl, 1 dwg

FIELD: electricity.

SUBSTANCE: before artificial earth satellite is sent to launch site, storage battery is pre-charged so that thermostatting is provided, and final charging is performed at the launch site with further balancing of accumulators as to voltage, and at least one boost charging of storage battery is performed without providing its thermostatting.

EFFECT: improving functional reliability and providing effective charging of lithium-ion storage batteries at restricted heat removal at preparation of storage batteries for standard operation as a part of artificial earth satellites.

3 cl, 1 dwg

FIELD: electricity.

SUBSTANCE: operating method of lithium-ion storage battery consists in voltage control of accumulators, performance of charging and discharging processes, periodic balancing of accumulators as to voltage, performance of boost charging process and preservation in charged state. The task is solved by the fact that anticipatory balancing of accumulators is performed prior to installation of storage battery for storage after its boost charging is performed, for levelling of imbalance of accumulators as to voltage at the end of storage battery storage period.

EFFECT: improving reliability and efficiency of use of lithium-ion storage battery at its ground operation.

3 cl, 1 dwg

FIELD: electricity.

SUBSTANCE: control device has a unit for detecting current location, a unit for establishing the control region, a unit for detecting road information, an energy estimating unit, a maximum/minimum selecting unit, a unit for calculating target control values, a unit for calculating the interval for controlling battery energy, a unit for changing the control region and a charge control unit. The control method involves detecting the current location of the vehicle, establishing the region for controlling battery energy using the current location, detecting the travelled route in the region for controlling battery energy, estimating energy based on the current location, selecting the maximum and minimum values of energy for movement, calculating the upper limiting and lower limiting values for controlling battery energy based on the maximum and minimum values of energy, calculating the interval for controlling battery energy, changing the control region and controlling the electric power generator.

EFFECT: high efficiency of controlling battery charge.

6 cl, 28 dwg

FIELD: electrical engineering.

SUBSTANCE: mechanical partitions between elements are suggested to be replaced by electrical ones. In order to form multi-element electrochemical power sources in common electrolyte elements of electrochemical power sources are placed in a common electrolytic unit, in particular, in water of offshore zone without partitions. In order to remove parasitic galvanic coupling which occur in result, electric outputs of the elements are connected to direct current convertors having electronic galvanic coupling between outputs and inputs of the elements of electrochemical power sources.

EFFECT: placement of elements of electrochemical power sources in separate units without mechanical partitions in order to separate electrolytic couplings.

5 cl, 6 dwg

FIELD: electricity.

SUBSTANCE: electric energy is saved due to realisation of the proposed method - a special technology of simultaneous performance of charging-discharging modes with a single charging converter, additionally equipped with a system of calculation of boosting time t=C3-Cp/I3, comprising a division unit and a summator, one input of which is connected to a setter of charging capacitance, a subtracting input - to a counter of discharge capacitance, and an output - to one input of the unit of division of capacitance difference by the charge current value, to the second input of which a charging current setter is connected, and an output - to a timer for getting the time of charged battery boosting.

EFFECT: electric energy saving during cycling of alkaline accumulator batteries and reduction of equipment assortment for performance of charging-discharging cycles.

1 dwg

FIELD: electricity.

SUBSTANCE: invention may be used in operation of nickel-hydrogen accumulator batteries (AB) in autonomous power supply systems (PSS) of spacecrafts (SC), functioning on a low circumferrestrial orbit. In case of abnormal operation of a charging-discharging device related to a failure of only a charging device, or only a discharging device or a charging-discharging device in general. For performance of a forming cycle of AB, an emergency bus is used with switching equipment controlled by one-off commands from a surface complex of control, at the same time in the first version of the failure the charge of the formed AB is carried out by means of its connection to any charging device of the operable charging-discharging device, which forms a subsystem with the "internal" AB, in the second version of the failure the formed AB is discharged by the discharging device of any operable charging-discharging device, which creates the subsystem with the "internal" AB, in the third version of the failure the formed AB is discharged and charged, using the charging and discharging devices of any operable charging and discharging device, creating the subsystem with the "internal" AB.

EFFECT: increased reliability of operation of a nickel-hydrogen accumulator battery and vitality of an SC as a whole.

3 cl, 2 dwg

FIELD: electricity.

SUBSTANCE: method is proposed to charge a lithium-ion battery from n serially connected accumulators with balancing resistors connected to them via switchboards, which consists in monitoring of accumulator voltage and disconnection of charging as voltage of any accumulator achieves the specified maximum value. The set objective is solved by the fact that whenever charging is connected, an accumulator is selected with the least current voltage, and balancing resistors are connected to remaining accumulators for the time individual for each accumulator and proportional to the value of its unbalance by voltage relative to the selected accumulator with the least current voltage. Besides, the time of balancing resistor connection to each accumulator is limited with a moment of levelling of the current value of its voltage to the voltage value of the previously selected accumulator, with the least current voltage, but not more than the time of charge connection, or time Ti of resistor connection to each accumulator is calculated on the basis of the following ratio: Ti=(1-Umin/Ui)·k·R, where Umin - the least current voltage of the accumulator in the accumulator battery, B; Ui - voltage of i accumulator from the number of the remaining ones, B; k - coefficient of recalculation of a difference of accumulator voltages into an unbalance capacitance, A·hr/V; R - resistance of balancing resistors, Ohm. The substance of suggested solution is explained in the drawing, where in the dwg 1 the functional diagram of the autonomous power supply system is pictured, which explains operation according to the suggested method.

EFFECT: increase of lithium-ion battery use effectiveness and simplified operation.

3 cl, 1 dwg

FIELD: electricity.

SUBSTANCE: it is identified, whether the extent of accumulation of a lithium-ion accumulator element has reduced to the first specified value. It is detected, whether a hybrid vehicle is in a stop condition. The lithium-ion accumulator element is charged to the second specified value as the hybrid vehicle motion stops. At the stage of charging the period is separated into two or more separate periods of charging and periods without charging. Charging is carried out in a separate period of charging. Stop of charging or discharging is carried out in a period without discharging. Duration of each of separate periods of charging makes at least 40 seconds. A hybrid electric vehicle comprises a lithium-ion accumulator element, a device to detect an extent of accumulation of a lithium-ion accumulator element, a device to detect condition of stop, a device of charging control in accordance with the above method.

EFFECT: prevention of accumulator element capacitance reduction.

12 cl, 19 dwg

FIELD: electricity.

SUBSTANCE: method to operate nickel-hydrogen accumulator batteries from n serially connected accumulators within an artificial Earth satellite consists in charging and discharging, bypassing accumulators having lower capacitance, with discharge bypass diodes, storage in discharged condition, monitoring of accumulator battery voltage and performance of recharging, if required, with low current, prior to charging, eliminating formation of explosive concentration of an oxygen-hydrogen mixture, at the same time at the stage of accumulator battery manufacturing the minimum Emin, V and maximum Emax, V value of voltage in an open circuit of discharged accumulators, and recharging with low current is carried out prior charging of the accumulator battery. Mathematical expressions are given, which determine conditions of recharging with low current.

EFFECT: higher functional capabilities and reliability of the method for operation of nickel-hydrogen accumulator batteries.

4 cl, 1 dwg

FIELD: secondary current supplies such as batteries assembled of lithium-ionic accumulators.

SUBSTANCE: proposed battery of electrical energy accumulators interconnected by means of switches into single electric circuit has input for connecting charging device and applying control signals to switch control device, as well as one or more load-connection outputs that function for alternate connection of single electrical energy accumulators by means of switches as soon as respective control signal is applied; when connected to battery input, they are interconnected in parallel and when to its outputs, they use series or series-parallel circuit arrangement. Its connection to charging device involves series connection of electronic member such as resistor or electronic unit limiting or regulating its charging current to each single energy accumulator.

EFFECT: reduced voltage unbalance of accumulators during battery cycling.

10 cl, 1 dwg

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