Electric installation with electric battery capacity. RU patent 2520918.
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Automotive transport power system with principle of periodic charging, discharging / 2520640 Invention relates to automotive transport power system with principle of periodic charging and discharging. Automotive transport power system contains automobile electric road, stations for electromobile charging and discharging, vehicle. Charging and discharging stations consist of control and monitoring unit, electric transformer, underground electric power cable, positive charge feed bus, negative charge feed bus, emergency generator. Charging stations are placed at uphills. Discharging stations are placed at downhills. Vehicle is active element. Vehicle contains automotive wheel base, electric motors, batteries, power-generating mechanism, recovery system, system for temporary storage and proper distribution of power. Electric current supply rod with rising-lowering mechanism is located on the bottom of vehicle. Charging and discharging is performed in motion. |
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Charging system for electrical vehicles / 2520616 System contains at least one charging port with interface for energy exchange with at least one electrical vehicle, at least one power converter intended to convert power supplied from the power source such as the supply mains to the format suitable for the vehicle charging, at that the power converted is in remote position from the charging port, for example, in a separate room and/or building. |
 Monitoring system of electric power-driven tool, battery power source of electric power-driven tool, and charging device for batteries of electric power-driven tool / 2518520Application in the field of electrical engineering. The system includes a battery power source of electric power-driven tool and an auxiliary power supply source. The battery power source has a battery and a monitoring circuit. The battery has at least one battery cell. The monitoring circuit is actuated by electric power supplied from the battery; the circuit controls state of the battery. The auxiliary power supply source outputs electric power that allows operation of the monitoring circuit. The monitoring circuit is made so that when the circuit is inoperable with electric power supplied by the battery in result of battery voltage decrease the circuit may operate with electric power supplied by the auxiliary power supply source. |
 Power supply interface for electric tool powered by plurality of battery packs, and adapter / 2518518Electric tool containing tool case, electric load placed inside the above tool case; power supply interface for the above electric tool containing interface of the first battery pack adapted for removable fastening of the first battery pack and including an input terminal of the first battery positive terminal and an input terminal of the first battery negative terminal; interface of the second battery pack adapted for removable fastening of the second battery pack and including an input terminal of the second battery positive terminal and an input terminal of the second battery negative terminal. The input terminal of the first battery negative terminal is connected electrically to the input terminal of the second battery positive terminal, at that the input terminal of the first battery positive terminal is connected electrically the input terminal of the second battery negative terminal through the above electrical load. The indicators (160; 260) adapted for data display in regard to the respective states of the first battery packs are placed so that they are seen simultaneously by the electric tool user. |
 Hierarchical control system for battery of electric energy accumulators / 2518453Hierarchical control system for a battery of electric energy accumulators relates to the field of electric engineering and it can be used for manufacturing of high-voltage batteries of electric energy accumulators for transportation and power-generating sectors. The essence of the invention lies in that each of the series-connected electric energy accumulators has at its lower control level an individual control unit powered from the accumulator and connected at the medium control level through an intramodular serial communication channel isolated galvanically to the respective control unit of the electric energy accumulators powered and connected at the upper control level through an intramodular serial communication channel isolated galvanically with the battery control unit powered by the battery. The accumulator control unit consist of a monitoring and control unit based on a microcontroller and a balancing unit based on transformer circuit, which is made as a device for bidirectional energy transfer from an individual battery accumulator through a current sensor to the direct-current accumulating line end-to-end for the battery, this line contains parallel capacitors of the accumulator control units, which are coupled in parallel to secondary windings of the accumulative transformer made as a transformer with flyback voltage converter stepping the voltage up to the side of the battery accumulating line, with diodes shunted by electronic keys in the primary and secondary windings of the transformer and controlled from the respective drivers by means of the microcontroller for the accumulator control unit. The accumulator control unit is connected to the temperature control unit while the battery control unit based on the high-efficient microcontroller with enhanced memory capacity is connected to the battery current sensor, a switching unit with a fuse and onboard charge device and through in-series communication channel isolated galvanically to the onboard charge device and to external systems. |
 Accumulator battery (versions) and electric tool and accumulator battery assembly (versions) / 2515945Invention relates to an accumulator battery which is used as a power source for portable electric tools. The housing of the accumulator battery has a finger engaging portion which engages the finger(s) of an operator in the direction of removing the housing of the accumulator battery from the electric tool, a locking device capable of locking with the possibility of releasing the housing of the accumulator battery from the electric tool and a working element for unlocking the locking device. |
 Hierarchical three-level control system for high-voltage battery of electric energy accumulators / 2510658Invention relates to the field of electric engineering and it can be used for manufacturing of high-voltage batteries of electric energy accumulators for transportation and power-generating sectors. In the claimed device in accumulator control units at the low level of battery control besides available transformer channel of active selective balancing there's additional second choke channel of nearby balancing that allows intramodular balancing of accumulators charge under control of the control units at the low and medium control level and simultaneous intramodular balancing by means of transformer channel of selective balancing and accumulating line under control of the battery control unit at the upper control level. |
 Charging device / 2509401Charging device, comprising a unit of charging voltage release; a unit for setting of switching duration; a unit to generate a PWM signal; a unit to generate reference voltage; a unit to limit reference voltage; a unit to generate detected voltage; and a unit to control charging voltage. The unit to generate reference voltage generates reference voltage for detection of whether the charging voltage achieved the target charging voltage by means of smoothing of the PWM signal, generated from the unit of PWM signal discharge. The unit to limit reference voltage limits at least one of the maximum value or minimum value of reference voltage generated by the unit of reference voltage generation. |
 Charging system of electric power-driven tool, battery power source of electric power-driven tool, and charging device for batteries of electric power-driven tool / 2508592Each of the charging device for batteries and the battery power source has a microcomputer. Corresponding microcomputers jointly perform data exchange while the battery power source is charged by means of the charging device for batteries and confirm the working state of the microcomputer of the other side of data exchange (confirmation of interaction) based on the data exchange result. When malfunction of one of the microcomputers is detected, the other microcomputer performs a pre-defined process to stop the charging operation. |
 Universal charging device / 2507661Universal charging device for charging of rechargeable batteries comprises a body, a connection block, formed on the specified body to hold a rechargeable battery, besides, the specified connection block comprises a mechanism of fixation with the possibility of disconnection of the specified rechargeable accumulator to the specified body and a circuit of power supply control, functionally integrated with the specified body, besides, the specified circuit of power supply control is made as capable of determining working parameters and parameters of charging of the specified rechargeable accumulator attached to the specified mechanism of fixation; in which the specified circuit of power supply control controls recharging of the specified battery depending on the specified certain working parameters and parameters of charging. |
 Automobile electrical system / 2244848Invention relates to energy accumulation systems using generator and storage and it is designed for use on vehicles with internal combustion engines. Proposed system contains electric motor, armature shaft of electric motor being designed for rotation of internal combustion engine shaft, first storage battery, first electromagnetic solenoid relay of electric motor, electric generator and battery switch. System is furnished also second storage battery, second and third electromagnetic relays, first and second magnetic contactors and selector switch with three contacts. First contacts of electric motor, switch, electric generator, windings of each contactor and each relay are connected with frame. Second contacts of winding of first magnetic contactor and first relay are connected with first fixed contact of selector switch. Second contacts of winding of second magnetic contactor, second and third electromagnetic relays are connected with second fixed contact of selector switch. First contacts of second and third magnetic relays and first magnetic contactor are connected with third movable contact of selector switch and with first pole of first battery. Second contacts of first and second magnetic contactors are connected with first pole of second battery. Second contact of electric motor is connected with first contact of first relay whose second contact is connected with second pole of second battery. Second contact of second relay is connected with second contact of first relay. Second contact of switch and first contact of second contactor are connected with second pole of first battery. Second contact of third relay is connected with second contact of generator. |
 High-speed cycling of storage-battery cells with enhanced current / 2284076Proposed method for high-speed cycling of battery cells with enhanced current includes battery filling with electrolyte, assembly of batteries in groups, their installation in liquid coolant filled reservoirs and settling-down, followed by multistage cycling with dc or pulse current. This treatment is effected in five stages; first stage involves passage of dc cycling current of 0.002-0.03Cn through battery for 10-60 minutes, its direction being reverse to normal one; during second stage current is reversed to normal and held within 0.002-0.03Cn for 10-60 minutes; third stage involves cycling with variable-polarity pulse current at charge pulse length of 100-300 s and discharge pulse length of 10-20 s, charge pulse amplitude being increased to 0.3-0.7Cn; fourth stage involves cycling for 1-3 h with variable-polarity pulse current at same length of charge and discharge pulses and constant amplitude of discharge pulses ranging between 0.3 and 0.7Cn; during fifth stage cycling is effected with variable-polarity pulse current and same length of charge and discharge pulses, amplitude of charge pulses being reduced to 0.15-0.4Cn; on-line control of third through fifth cycling stages is effected by using discharge pulses set up due to cell discharge across standard resistor as test ones and comparing their amplitude with experimental normalized amplitudes for each stage. Such procedure enables optimization of cycling lead-acid batteries with heavy current within short period at reduced in-process polarization of plates and their recharge, as well as enhancement of energy-intensive modification of β-PbO2 in positive-plate active material whose strength is also enhanced. |
 Computer-based production complex for cycling and charging flow-line produced storage batteries / 2287884Proposed computer-based production complex for cycling and charging flow-line produced storage batteries that incorporates provision for reducing mechanical damage to batteries during their loading in and removal from tanks under flow-line production conditions and for equalizing temperature gradients in tanks during battery cycling and charging has electrolyte holding machine, electrolyte level correcting machine, washing machine, degree-of-charge checking device, labeling machine, packing machine, hydraulic communication system with heat-transfer apparatus, set of power converters for feeding cycling and charging currents. Device for loading storage batteries on trays , device for removing batteries from trays, running cooling water tanks with movable controlled face walls are installed in line between two rail tracks with moving cars for trays mounting storage batteries. Battery-holding tray pushers and tanks are installed opposite inlet face walls of each tank. Guide rollers are disposed throughout entire length of each tank for moving trays incorporating slots uniformly arranged on surface and used for running water circulation. |
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Method for accelerated charging of alkaline accumulators / 2293402 In accordance to method accumulators are charged with current impulses of different polarity with stabilized amplitudes of discharge and charge currents, while ratio of amplitudes of discharge and charge currents γ and ratio of durations of discharge and charge impulses τ are determined individually for each type of accumulators by means of two-factor experiment in intervals γ=1,1÷10 and τ=0,1÷0,9 respectively, amplitude of discharge current is calculated based on average current in accordance to required charging time, while charging time oscillates from 7 minutes to 4 hours depending on requirements of client, discharge process is stopped when voltage on accumulator reaches threshold value, charging of alkaline accumulators is performed in automatic mode without return of accumulators to original state. |
 Device for controlling accumulator charging / 2293415Device contains impulse generator, discharge chain circuit, indication circuit, outputs for connection of accumulator, key element, control circuit and source of direct stabilized voltage, to output of which connected electrically in parallel are impulse generator, first input of key element and also through smoothing filter - load, connected in parallel through discharge chain circuit are indication circuit and outputs of accumulator. New are introduced current limiting element, discharge key element, electrically connected to output of impulse generator, and launch circuit, input of which is electrically connected to outputs of discharge key element and control circuit, and output - to second input of key element, electrically connected by output to input of current-limiting element, another output of which is connected to inputs of control circuit, indication circuit and positive output of accumulator. |
 Autonomous voltage source / 2293416In autonomous voltage source, diode-capacitor block consists of capacitor, connected in parallel to photo-electric transformer, and two fast action Schottky diodes, first one of which is connected serially between photo-electric transformer and capacitor, and second one - between capacitor and accumulator battery on the side of its positive output. |
 Power supply turn-on and turn-off device / 2300166Proposed power turn-on and turn-of device has secondary power supply, code keying unit, control unit, actuating device with make contact, push-button with make contact, indicator, first and second input power buses, first and second output power buses. Novelty is introduction of code keying unit and new interconnections for functional components. |
 Method and device for restoring accumulator battery / 2309509Accumulator battery restoration method includes following modes and parameters - before beginning the restoration of accumulator battery, technological process parameters of accumulator battery restoration are recorded into memory of measuring device, which are compared in process of accumulator battery restoration to current values of accumulator battery restoration process parameters, which are corrected in case of deviation from given value of technological process parameters, charging of accumulator battery with constant current is stopped on achievement of given parameter values, recorded in the memory of measuring device, by current parameter values, after that accumulator battery is charged by letting a series of rectangular current impulses through it, duration of which impulses is set between 150 and 600 milliseconds, and pause between impulses ranges from 2 to 6 seconds, while amplitude of rectangular current impulses is kept unchanged at the temperature of electrolyte below predetermined value, and if the value of electrolyte temperature exceeds that value, the amplitude of rectangular current impulses is reduced to value, at which electrolyte temperature is reduced to predetermined value, and charging process is stopped on achievement of parameter values of measured values, defining end of battery charging process and recorded in the memory of measuring means in advance, after that battery capacity is measured by discharging it, which is stopped when battery voltage reaches limit value set for the battery, and accumulator battery restoration cycle is repeated, if capacity of the battery is less than 80% of nominal value. Device for restoring the accumulator battery contains block of charge current sources, output of which is used for connecting accumulator battery, current sensor, voltage sensor, temperature sensor, electrolyte density meter and memory block, it is fitted with processor, interface block, indication block and decoder, while memory block and indication block are connected to the processor, connected to which via interface block are current sensor, voltage sensor, temperature sensor and electrolyte density meter, processor output is connected to decoder input, first output of which is connected to input for controlling charging current source connection, and second output of decoder is connected to charging current parameter control input of charging current source block. |
 Method of accumulators charge with their grouping in system by principle of capacities division / 2329582Method of accumulators charge with their grouping in the system by principle of capacities division is characterised by the fact that accumulators are divided into groups that include single-type and close in value of their measured capacity accumulators, with equal number of serially connected accumulators in different groups. Groups are charges simultaneously and in parallel, from the same source that generates charging current, which is determined as sum of currents that are dependent on measured capacity of accumulators in groups. |
 Electric tooth bruch and disposable components / 2336846Invention concerns electric tooth brushes in which components of toothbrush heads are disposable. Electric tooth brush contains handle, head and waist, located between head and handle. Handle has internal hallow and head contains chaetas. Head contains at least one of components with electricity supply, interrupter, electrically connected to motor, located in internal hollow presented in handle. At least one component is connected by means of sliding connection with head of electric tooth brush, at that component can be detached or changed without detaching of components with electricity supply from mentioned tooth brush head. |
FIELD: electricity.
SUBSTANCE: invention refers to vehicle battery chargers. The presented electric installation with an electric battery capacity represents a power transmission facility comprising a voltage supply converter, an AC voltage network connected to an AC voltage terminal of the converter, and a DC voltage node connected to a DC voltage terminal of the converter. The converter comprises in-series connected switching elements each of which has at least one energy storage capacitor. The electric batteries can be parallel connected to the above capacitor, and a charging status can be adjusted by controlling the switching element of the voltage converter through a control circuit.
EFFECT: higher efficacy and operational reliability.
19 cl, 7 dwg
THE TECHNICAL FIELD TO WHICH THE INVENTION RELATES
This invention relates to the electrical installation with capacity for charging electric batteries, for example, for electric vehicles, especially cars with electric drive.
Although this invention relates to the electrical installation with capacity for charging electric batteries, such electrical installation with the same success can have other uses and may not always be used for charging the battery, even if the charge was possible. However, now, to shed light on the invention and solve their tasks and not to limit the invention in any way, will be explained case of use of such installations with capacity for charging electric battery electric vehicles, especially cars with electric drive.
THE LEVEL OF TECHNOLOGY
Thanks to the increasing amount of discussion about climate most manufacturers of automobiles now stimulate the ability to move with zero harmful emissions, which, among others, support of the U.S. administration and the European Union, investing state funds for the development of electric vehicle technology and infrastructure for charging such vehicles. Thus, there is a growing need for the development of electrical installations with capacity for charging electric battery electric vehicles, which can be designed for effective achievement of charge growing number of electric vehicles. When charging electric batteries for such electric vehicles will be simultaneous charging of multiple batteries site or unit, connected in series and/or parallel.
Installations of this type is already known, for example, from documents EP 1610436 A1 and WO 2009/131336 A2, and in both of these documents are described installations intended for charging electric batteries connected in series. However, of course, made continuous attempts to improve such facilities, for example in terms of efficiency, reliability, capacity, etc.
DISCLOSURE OF THE INVENTION
The objective of the invention is to develop the electrical system of the type which is described in the introduction, at least in some aspects improved relatively already known to such facilities.
In accordance with the invention, this problem is solved by developing such installation with the following characteristics:
it is an installation for transmission of electric energy that contains a voltage source inverter, network voltage AC connected with the party voltage AC Converter, and node voltage DC, connected with the side of the DC voltage Converter with voltage source inverter has at least one shoulder phase, United with the opposite poles of the mentioned parties voltage direct current Converter containing a serial connection switching elements, each referred to the switching element has, on the one hand, at least two of semiconductor unit, connected in series, each of which has semiconductor turn off the device type and reverse diode, connected in parallel with this device, and on the other hand - at least one capacitor energy storage, as well as two pins, connecting this element with the neighboring elements mentioned in series connection of switching element, with the average point of the mentioned series connection of a switching element forms the phase output, coupled with said party of the AC voltage of the Converter, the Converter contains a schema, made with the possibility to manage mentioned semiconductor switching devices of each element so that each mentioned switching component will create one of the switching conditions, namely, the first state of the switch and the second state switching, in which the voltage on the mentioned at least one storage capacitor and zero volts respectively served on the mentioned two output switching element to receive a certain AC voltage at the phase output
however, at least one of the mentioned switching element is equipped with a tool made with the possibility to connect at least one electric battery in parallel with mentioned at least one capacitor this element, and
the mentioned control scheme implemented with the possibility to carry out the mentioned manage to influence the charging status mentioned at least one of the electric battery, which is connected with the mentioned at least one switching element.
The term "network voltage AC" here is interpreted in a broad sense and covers the range from local connections to multiple consumers of electric energy of alternating current to power supply networks, intended for distribution or transmission of alternating current of high voltage.
Accordingly, this invention is based on the understanding of the possibilities and advantages of use of a voltage source inverter of the type known, for example, from documents DE 10103031 A1 and WO 2007/023064 A1, electrical installation, which must have the capacity for charging electric batteries. Of special interest there are in use the Converter voltage source of this type to convert the DC voltage in AC power, and, conversely, when it comes to the transmission of large electric power, because it also means that we have to deal with high stress and tension of the parties DC voltage Converter is determined by the voltage at the capacitor energy storage switching element. This means that a relatively large number of such switching elements have to be connected in series for a large number of semiconductor devices, i.e mentioned semiconductor blocks have to connect consistently in each of the mentioned switching element, and the voltage source inverter this type is of particular interest when switching elements mentioned in the shoulder phase is relatively large. A large number of switching element, connected in series, means that it will be possible to manage these switching elements, producing a change between referred to the first and second conditions and due to this - already mentioned the phase out is getting AC power, very close to a sinusoidal voltage. Then this can be achieved already by switching frequencies, which are significantly lower than normally used in other known converters of voltage sources. This makes it possible for smaller losses and significantly reduces problems of filtering, harmonic currents and interference, so the equipment for this may cost less. Accordingly, there are several advantages of using this Converter voltage source as such, and the authors of the present invention realized that the voltage source inverter this type are simple means and due to the relatively small cost to use for charging electric batteries. Thanks to the connection of at least one electric batteries mentioned switching element in parallel with his capacitor, it will be possible via the aforementioned scheme of management is easy to adjust operate in such a way that the state of charge mentioned at least one electric batteries will change. Consequently, there will be an opportunity both full and partial charging or discharging electric batteries by such management.
In addition, it will be possible to use the electrical system, which may have other known destination to perform functions in connection with the passage of electric energy, and also for charging electric batteries.
In accordance with the embodiment of the invention referred to install contains the tool, made with the possibility to determine the level of voltage mentioned at least one electric batteries connected in parallel with the above, at least one capacitor, and to send information about this level in the control scheme, and mentioned control scheme made with the possibility to exercise this Directorate with getting at the condenser, essentially, the same voltage as the voltage at the mentioned battery, and mentioned the connecting tool implemented with the possibility to postpone the connection is mentioned at least one electric battery in parallel with the said capacitor as long as the control circuit will not get mentioned on the condenser, essentially, the same voltage as the voltage on the above the battery. Thus, the connection at least one electric battery to be charged, with the mentioned switching element can be easily obtained by proper management via the aforementioned scheme of management, adjusting the voltage at the capacitor to a voltage mentioned on the battery.
In accordance with another variant of the invention, to detach mentioned at least one electric battery from the mentioned switching element mentioned control scheme implemented with the possibility to exercise this Directorate so that the voltage at the mentioned at least one condenser is essentially identical with the voltage mentioned the battery, and charging current does not flow, and when this is achieved, the connecting tool implemented with the possibility to disconnect mentioned, at least one electric the battery from the switching element. These features guarantee a smooth disconnecting mentioned at least one electric batteries from switching element, where required, for example when the battery is fully charged.
According to one embodiment of the invention referred to the connecting tool implemented with the possibility to connect the unit from a variety of electric batteries, mutually connected in parallel and/or sequentially, with the mentioned at least one capacitor mentioned at least one switching element, and the control scheme implemented with the possibility to carry out the mentioned manage to influence the charging status of the mentioned battery pack connected to the mentioned switching element. By connecting this unit from a set of batteries in parallel with the said capacitor mentioned at least one switching element, it will be possible, for example, to charge the battery pack, located in electric vehicles, such as passenger car with electric drive, to bring the mentioned vehicle in motion by connecting this unit with the switching element of the installation.
In accordance with another variant of the invention, many mentioned switching element transducer, such as all switching elements, provided the mentioned means of connecting, and it means that then the set switching element can be used simultaneously to influence the state of charge, at least one electric battery, connected with each such switching element, so that, for example, in the case of charging battery packs electric vehicles such blocks certain amount of electric vehicles can be charged simultaneously with this electrical installations.
According to one embodiment of the invention, the transmitter contains a tool that allows you to shunt the switching element in the mentioned series connection of switching elements, as mentioned control scheme implemented with the possibility to manage mentioned bypass tool for making election bypass switching element. This means that the number of levels the inverter can be changed depending on the prevailing needs to influence the state of charge of the electrical battery or electric power transmission between the side of DC voltage and the voltage AC Converter.
According to one embodiment of the invention referred control scheme implemented with the possibility to exercise this Directorate mentioned semiconductor devices, switching element so that when charging at least one mentioned the electric battery, at least part of the electrical energy for this charge is fed into the battery of the mentioned network voltage AC. You can easily design a management scheme for the implementation of such management consumption of electric power from the mains AC voltage for charging mentioned the electric battery.
According to one embodiment of the invention referred to host the DC voltage contains at least one generator of electricity using renewable energy such as wind energy or solar energy, and coupled with the mentioned party DC voltage Converter. In this case you can also have one or more wind turbines and/or solar panels, so - and mentioned at least one electric battery - close to the converters of voltage source, and to provide the charging of electric vehicles local renewable energy sources. Also it will be possible to use an electric battery connected to a voltage source inverter, for the accumulation of some excess wind energy, which can sometimes be formed. The same is true for solar panels, which thus through the accumulation of energy in the mentioned batteries connected with switching elements - provide energy even at night.
In accordance with another variant of the invention, constitutes a development of the last version of the implementation of the mentioned control scheme implemented with the possibility to exercise this Directorate to supply at least part of electrical energy to charge at least one mentioned electric batteries with the mentioned parties DC voltage Converter.
According to one embodiment of the invention referred control scheme implemented with the possibility to exercise this Directorate to supply at least part of the electrical energy supplied to the Converter of the mentioned at least one generator on the side of the DC voltage Converter, mentioned in the network of the AC voltage. Thus, the electric energy generated on the side of the DC voltage, can be used for charging electric batteries connected to the inverter when required and when there is a surplus of electrical energy, and then some of this energy can be fed into the mains AC voltage. To charge the battery you can use any type of combination of electric energy with the mentioned parties DC voltage and mains AC voltage.
According to one embodiment of the invention referred to the Converter is equipped with at least one mentioned rechargeable electric battery, which is connected to at least one mentioned the switching element that allows the control scheme to implement this Directorate so that the Converter is functioning as an uninterruptible power supply (UPS) for the supply of electric energy on the side of the DC voltage or the side of the AC voltage of the Converter is an interruption in the supply of electric energy on this side of the Converter. Thus, the electrical system in accordance with this invention is due to the possibility of exercising control by influencing the state of charge mentioned electric battery - can be used to provide functionality of the UPS.
According to one embodiment of the invention referred to the node on the side of the DC voltage consists of randomly connected capacitors, and referred to the control circuit of the Converter is made with the possibility to exercise this Directorate so that the Converter operates as a static adjustable compensator (SVC). Accordingly, the electrical system in accordance with this invention, which have a capacity for charging electric batteries, you can apply for compensation of reactive power.
According to one embodiment of the invention referred to at least one switching element transducer that is equipped with at least one electric battery, which is connected capacitor in parallel with this element, made with the possibility to provide the voltage from 10 up to 10 kV, in particular - from 100 In - 1 quarter, mentioned at least one capacitor and, therefore, in parallel to it connected mentioned at least one electric battery, when fully charged last. As already mentioned, mentioned at least one electric battery can be a single electric battery or block such electric batteries, mutually connected in parallel and/or sequentially, and you can, for example, mention that the typical total voltage on such a unit electric battery in the car with electric drive can be 500 In, and then charging current can be, for example, 40 A, which in this case would mean power consumption for the charging of about 20 kW.
According to one embodiment of the invention referred to the Converter has three mentioned shoulder phases, as mentioned network voltage AC is a three-phase network voltage AC.
The invention also relates to the station to charge the batteries used for the propulsion of electric or hybrid vehicles, such as cars, according to an independent clause attached claims to this station. Primary features and benefits of such a station in accordance with this invention and options for its implementation, described in dependent claims to the station to charge the batteries, clearly follow from the above information about the electrical installation in accordance with this invention.
Below, with links to enclosed drawings will be given specific description of embodiments of the present invention cited as examples.
THE DRAWINGS:
in Fig. 1 presents a highly simplified view that shows the General construction of electrical installations in accordance with the invention;
in Fig. 2 presents a simplified view of the electrical installation in accordance with the invention;
in Fig. 3 presents a view of illustrating switching component installation in accordance with the invention;
in Fig. 4 presents the view that corresponds to Fig. 3 electrical battery to be charged and connected to the mentioned switching element;
in Fig. 5 presents the view that corresponds to Fig. 3, alternative construction of the switching element in the electrical installation in accordance with the invention;
in Fig. 6 presents the view that corresponds to Fig. 4, to illustrate how the unit of electric batteries can be connected to the switching element of the electrical installation; and
in Fig. 7 shows a simplified view that illustrate the General design of the station for charging car with electric drive according to this invention.
THE IMPLEMENTATION OF THE INVENTION
Here explains the variants of the invention, describing the electrical installation according to the invention, the station for charging the batteries used for the propulsion of electric or hybrid vehicles, and application installation for transmission of electrical energy to charge electric batteries. However, the invention can be translated into other forms and should not be considered limited options for implementation, given here; these variants of implementation presented soon in order to make this description thorough and complete, and encourages unconditional bring the idea of this invention to specialists in this field of technology.
The General design of the electrical installation with capacity for charging electric batteries, for example, for electric vehicles, in particular, for vehicles with electric drive, shown schematically in Fig. 1 and has a Converter 1 voltage source with three 2-4 phases, with the United unlike poles 5, 6 site 7 DC voltage Converter, which can have different designs, for example, consist of randomly connected capacitors, when the inverter is used as static adjustable compensator for reactive power compensation, or other possible design, such as described below with reference to Fig. 2 and 7.
Each shoulder phase contains a serial connection switching element 8, marked by squares, the number of which in this case is 10, and this serial connection divided into two equal parts - the upper gate part 9 and lower valve part 10 divided by an average point 11-13, forming a phase output, coupled with a side AC voltage Converter. Phase outputs 11-13, possibly through the transformer can be connected to three-phase network of 14 AC voltage. At the above-mentioned side of the AC voltage is also located filtering equipment to improve the shape of the AC voltage mentioned on the side of the AC voltage.
To control the switching elements 8 circuit is provided 15 control, whereby the inverter is able to convert the DC voltage AC voltage, and Vice versa.
The voltage source inverter in the electrical installation is switching elements 8 of the type that have on the one hand, at least two of semiconductor unit 16, 17 (see Fig. 3), each of which is equipped with a semiconductor device 18, 19 turn off type and reverse diode 20, 21, connected in parallel with the device, and on the other hand - at least one capacitor 22 for energy storage, and in Fig. 3 and 5 show two examples of such switching element. Conclusions 23, 24 switching element is made with links to other switching functions in series connection of switching elements, forming the shoulder phase. Semiconductor devices 18, 19 in this case are a bipolar transistors with insulated gate (IGBT), connected in parallel with the diode 20, 21. Although it is shown that in one unit, only one of semiconductor device and one diode, these blocks can contain a number of semiconductor devices and diodes, respectively, connected in parallel to share the current flowing through the unit. One conclusion 23 connected to the middle point between the two semiconducting units. Another conclusion 24 connected with a capacitor 22 for energy storage, the embodiment, according to Figure 3 - with one other, in the embodiment of Fig. 5 - on the other side. We emphasize that each of the semiconductor device and each diode is shown in Fig. 3-6 may be present in an amount greater than one and connected in series, making it possible manipulation by those stresses that must be manipulated, and then semiconductor devices connected because of this series can manage up to act as a single solid device.
Switching elements, is shown in Fig. 3 and in Fig. 5, you can manage to get one of the first of the switching status and b) the second of the switching status, and to the conclusions 23, 24 in the case of condition (a) is applied voltage available on the capacitor 22,and in the case of condition (b) is zero volts. To obtain the first condition is shown in Fig. 3 semiconductor device include 18, and semiconductor device 19 - off, and the embodiment, corresponding to Fig. 5, semiconductor device include 19, and semiconductor device 18 off. Switching elements switch to the second condition, changing the state semiconductor devices, so the embodiment, corresponding to Fig. 3, semiconductor device 18 shuts down, and semiconductor device 19 is included, and in Fig. 5 semiconductor device 19 shuts down, and semiconductor device 18 is included.
Thus, the scheme is 15 made with the possibility to manage semiconductor devices, switching element to convert the DC voltage in AC and Vice versa and control the direction of the flow of electrical energy through a transformer, as well as the charge status of capacitors the corresponding switching element by management mentioned semiconductor devices for switching between these two States corresponding switching element.
Electrical installation, described above, are already known. However, the electrical installation in accordance with this invention is equipped with an additional capacity for charging electric battery, which is obtained by providing at least one of the switching element, as in this case all, a means 25, made with the possibility to connect at least one electric battery 25 in parallel with the above, at least one capacitor 22 switching element. Chart 15 control implemented with the possibility to carry out the mentioned management of semiconductor devices, switching elements to influence the charging status mentioned at least one of the electric battery, which is connected with the mentioned at least one switching element, the "impact on the state of charge" may be in charge or discharge of the electric battery, which is connected with the mentioned switching element.
Now, with reference to Fig. 3-6, will be described in the managing for charging electric battery. Only in Fig. 5 shows that the installation includes a tool 29, made with the possibility to determine the level of voltage mentioned at least one electric battery to be connected in parallel with the said capacitor 22, and to send information about this level in diagram 15 management. This means 29 not shown in Fig. 3, 4 and 6 to simplify these drawings. Chart 15 control is designed with the ability to manage semiconductor devices, switching element install to get at the condenser, essentially, the same voltage as the voltage on the above the battery. In Fig. 5 shows that to measure the voltage at the capacitor and send information about it to the schema 15 management provides a tool 30. The connecting tool contains 25 switch 31, made with the possibility to postpone the connection of the electric battery in parallel with the said condenser up until through a scheme 15 control on the capacitor is not received, the voltage is the same as the voltage on the battery. Fig. 4 shows how then connect the battery. Control scheme implemented with the possibility to charge electric battery 26 after the connection is through the implementation of the control switching elements of the inverter voltage source so that the voltage at the capacitor 22 gradually increased to achieve the flow charging current in the electric battery, connected in parallel with the capacitor.
In addition, to detach mentioned at least one electric battery from the mentioned switching scheme item 15 control is designed with the ability to manage semiconductor devices switching element transducer voltage source so that the voltage at the mentioned at least one condenser is essentially identical with the voltage mentioned the battery, the charging current is not flowing, and when this is achieved, the connecting tool implemented with the possibility to disconnect mentioned, at least one electric battery from the switching element. In Fig. 6 shows that the block 32 of numerous electrical batteries, mutually connected in parallel or in series connected capacitor in parallel with 22 switching element to change the status charging these batteries using the appropriate control through control scheme.
The voltage source inverter contains a tool that allows you to shunt the switching element in series connection of switching elements and chart 15 control is designed with the ability to manage mentioned bypass tool for making election bypass switching element, and the embodiment shown in Fig. 3, it shunt tool can be easily formed a semiconductor device 19.
In Fig. 7 shows a schematic representation of the station to charge the batteries, used to drive the motion of electric or hybrid vehicles, such as cars, in accordance with the option of carrying out the invention. Shows how you can connect to the mentioned switching element cars with the electric drive, each of which has its own block of rechargeable electric batteries. The mentioned block can typically be attached 500 volt, battery, in the typical case can hold a charge current of 40 A, so installation is mentioned by switching element 8, then shall you bring 20 kW to the mentioned block cars 33, connected with it. Shows how you can locally be placed panel 28 with solar cells on the mentioned station and connect them through a transformer 34 DC to DC with a side 7 DC voltage Converter 1 voltage source to increase the voltage of this node DC voltage and, due to this, the number of switching elements 8, which can be connected in series so that you can charge a large number of cars. As a result, the number of switching elements, and therefore the charging of the parties at the station, would be about 100.
The invention, of course, in no way limited to the implementation of the above variants, and many possible variations within the scope of the claims of the invention described supplied by the claims will be clear to a person skilled in the art.
Not all switching elements of the voltage source inverter installations in accordance with this invention sure is equipped with means for connection of electric batteries of such elements.
1. Electrical installation with capacity for charging electric batteries, for example, for electric vehicles, especially cars with the electric drive, characterized in that it is an installation for transmission of electric energy, containing Converter (1) voltage supply chain (14) voltage AC connected with the side of the AC voltage of the inverter, and the node (7) the DC voltage connected with the side of the DC voltage Converter with voltage source inverter has, by at least one shoulder (2-4) phase, United with unlike poles (5, 6) mentioned parties voltage direct current Converter containing a serial connection switching element (8), each of the mentioned switching component has on the one hand, at least two of semiconductor unit (16, 17), connected in series, each of which has a semiconductor device (18, 19) disable type and reverse diode (20, 21)connected in parallel with the device, and on the other hand - at least one capacitor (22) for accumulation of energy and two output (23, 24), linking this element with the neighboring elements mentioned in series connection of switching element, and the Central point (11-13) mentioned serial switching element forms the phase output, coupled with said party of the AC voltage of the Converter, the Converter contains a schema (15), made with the possibility to manage mentioned semiconductor switching devices of each element so that everyone referred to switch the item will get one of two States switch, namely, the first state of the switch and the second state switching, in which the voltage on the mentioned at least one capacitor for energy storage and zero volts respectively serves on these two conclusions (23, 24) switching element to get a specific voltage AC referred to phase out, with at least one of the mentioned switching element is equipped with a tool (25), made with the possibility to connect at least one electric battery (26) in parallel with the above, at least one capacitor (22) of this item, and mentioned scheme (15) is a control with the ability to make mentioned manage to influence the charging status mentioned at least one of the electric battery, which is connected with the mentioned at least one switching element.
2. Installation according to claim 1, characterized in that it provides a tool (29), made with the possibility to determine the level of voltage mentioned at least one electric batteries (26)to be connected in parallel with the mentioned at least one capacitor (22), and to send information about this level in the scheme (15) management; the fact that the control scheme implemented with the possibility to exercise this Directorate with getting at the condenser, essentially, the same voltage as the voltage at the mentioned battery; and those that referred to the connecting tool (25) made with the possibility to postpone the connection is mentioned at least one electric battery in parallel with the said capacitor as long as the control circuit will not get mentioned on the condenser, essentially, the same voltage as the voltage at referred to the battery.
3. Installation according to claim 2, characterized in that the mentioned scheme (15) is a control with the ability to charge mentioned, at least one electric battery (26) after the above mentioned connection of the battery in parallel with the above, at least one capacitor (22) through the implementation of the mentioned control so that the voltage at the capacitor increases gradually to obtain flow charging current mentioned in the electric battery, connected in parallel with the capacitor.
4. Installation on any of the preceding paragraphs, wherein to detach mentioned at least one electric batteries (26) from the mentioned switching element mentioned scheme (15) is a control with this Directorate so that the voltage at the mentioned at least one capacitor (22) is essentially identical with the voltage mentioned the battery, and charging current does not flow, and when this is achieved, the connecting tool implemented with the possibility to disconnect mentioned, at least one electric battery from the switching element (8).
8. Installation according to claim 1, characterized in that the mentioned scheme (15) is a control with this Directorate mentioned semiconductor devices, switching element so that when charging at least one mentioned electric batteries (26)at least part of the electrical energy for this charge is fed into the battery of the above network (14) AC voltage.
9. Installation according to claim 1, characterized in that the mentioned site DC voltage contains at least one generator (27, 28) of electricity using renewable energy, such as wind energy or solar energy, and coupled with the mentioned party (7) DC voltage of the inverter.
10. Installation of claim 9, wherein the mentioned scheme (15) is a control with this Directorate to supply at least part of electrical energy to charge at least one mentioned electric batteries (26) with the mentioned parties (7) DC voltage of the inverter.
11. Setting item 9 or 10, wherein the mentioned scheme (15) is a control with this Directorate to supply at least part of the electrical energy supplied to the Converter of the mentioned at least one generator (27, 28) on the side of the DC voltage Converter, mentioned in the network (14) AC voltage.
12. Installation according to claim 1, characterized in that said Converter (1) equipped with at least one mentioned rechargeable batteries (26), which is connected to at least one of the mentioned the switching element (8), which allows the scheme (15) administration to carry out this Directorate so that the Converter is functioning as an uninterruptible power supply (UPS) for the supply of electric energy on the side of the DC voltage or the side of the AC voltage of the Converter is an interruption in the supply of electric energy on this side of the Converter.
13. Installation according to claim 1, wherein the above-mentioned knot on the side of the DC voltage consists of randomly connected capacitors, and referred to the control circuit of the Converter is made with the possibility to exercise this Directorate so that the Converter operates as a static adjustable compensator (SVC).
14. Installation according to claim 1, characterized in that the mentioned at least one switching element (8) of the transducer, supplied, at least one electric battery (26), connected in parallel, at least, with a single capacitor (22) this item is made with the possibility to provide the voltage from 10 up to 10 kV, in particular - from 100 V to 1 kV, at the condenser, and that means - and in parallel with it connected mentioned at least one electric battery, when fully charged last.
15. Installation according to claim 1, characterized in that the Converter has three mentioned shoulder (2-4) phases, and the fact that the mentioned network (14) voltage AC is a three-phase network voltage AC.
17. Station for charging of batteries in article 16, wherein it either contains at least one generator (27, 28) of electricity using renewable energy, such as wind energy or solar energy, and coupled with the mentioned party (7) DC voltage of the inverter, or has the facility made with the possibility to connect at least one generator with said party voltage direct current; and the fact that the mentioned scheme (15) is a control with the ability to make mentioned management so that at least part of the electrical energy to charge at least one electric batteries (26) served with the mentioned parties DC voltage Converter.
18. Station for charging batteries 17, characterized in that it contains panel (28) with solar cells and/or at least one wind turbine (27)connected with said party (7) DC voltage of the inverter.
19. Application installation for transmission of electric energy according to claim 1 for charging electric batteries, in particular, electrical batteries, used for the propulsion of electric or hybrid vehicles, such as cars.