Synchronous generator - compensator and method of its operation

FIELD: electricity.

SUBSTANCE: present invention pertains to electrical engineering and can be used in parametric machines in the electrical energy industry as electric generators and electric motors, for example on electrical power stations. The synchronous generator-compensator is a combined electrical machine, the circuit of which has an electronic frequency converter, with power corresponding to an asynchronous motor. On one axle of the synchronous generator-compensator there are series-arranged rotors of the drive motor, synchronous generator with a thyristor-type self-triggering system, and the asynchronous motor with a short-circuited rotor. The rotor of the asynchronous motor is in form of a flywheel with a large diameter, radius R and mass, which matches up the radius r and mass of the rotor of the synchronous generator, respectively, calculated using the mechanical resonance formula. The ratio R/r is chosen in accordance with the Fibonacci number sequence. The output of the synchronous generator and the input of the stator of the asynchronous motor are connected through a frequency converter, supplying the asynchronous motor with current, with discrete synchronisation of the frequency of current from the synchronous generator and frequency of the angular impulse of the asynchronous motor. The circuit of the frequency converter has massive capacitors, with provision for mechanical positive feedback from the rotor of the asynchronous motor to the rotor of the synchronous generator due to the single axle of the rotor of the asynchronous motor and the synchronous generator. The rotor of the asynchronous motor has ratio of the width to its radius in accordance with the Fibonacci number sequence, in succession to the chosen ration R/r. The diameter of the asynchronous motor is increased, corresponding to the rotor, with provision for clearance between the stator and the rotor of 1-3 mm. The method of operation of the synchronous generator-compensator is implemented, as is described in the material of the claim.

EFFECT: increased fuel saving in the drive motor, due to increase in moment of inertia on the system axle.

3 cl, 3 dwg

 

The proposed group of inventions can be used in parametric electric vehicles in the electric power industry, where they can be used as generators and motors, for example, in power plants. Relates to electric machines and can be used to convert the mechanical power of engines and devices.

Known invention "Cosmic energy storage device", patent RU 2147090, publ. 2000.03.27, IPC F16H 33/02, F03G 3/08 containing a flywheel and a generator capable of operating in the motor mode. The unit allows you to create a group flywheels capable of delivering the stored energy by mechanical power and convert it to electricity, however, proposed a more advanced solution with two axles and brake devices and a single flywheel. The invention does not solve the problem of increasing the efficiency of the system by increasing the moment of inertia on the shaft system.

Known invention "compensated Asynchronous electric machine, the application EN 96109621, publ. 1998.08.10, IPC 6 NC 17/28 containing a rotor, a stator and a capacitor to compensate namagnichivayushchego field. The invention allows to compensate the reactive power of an induction motor, however, the compensation is carried out by an additional winding that reduces the efficiency of the electric machine.

From the local to the invention of "Managed cascading electric drive", patent RU 2173927, publ. 2001.09.20, IPC NC 17/34, contains two connected coaxially of the motor, the magnetic system is made of axial and located on a common shaft, and both contain the masses in the form of two rings of small and large diameters. The invention solves the problem of providing the possibility of regulating the speed and torque at a constant mechanical power taken from the shaft. However it's not possible to increase the efficiency of the synchronous generator due to the incremental generation.

Known invention "compensated Asynchronous electric machine, patent RU 2112307, publ. 1998.05.27, IPC NC 17/28 containing a rotor, a stator and a capacitor. The invention allows to reduce electrical energy losses in low voltage networks and implement compensation magnetizing current, which leads to an increase in energy of the electric field of the capacitor, and also contributes to the conversion of electric energy into mechanical energy by means of induction motors. However, a high value of reactive EMF when switching high inrush current and complexity of manufacture.

Closest to the proposed device is the invention of "Power adjustment"application EN 2001101724, publ. 2002.12.20, IPC NC 17/34 containing electric machine, a shaft which is rigidly connected with the stator one in the designs as electrical power installations. The invention allows to increase the output load on the shaft, but does not solve the problem of increasing the efficiency of the system by increasing the moment of inertia on the shaft of the system and increasing the efficiency of the synchronous generator due to incremental generation, if it works in the mode of providing the consumer with electricity.

In other words, all of the improvements are related to changes in the electrical part of the structure.

You want to increase the efficiency of the system, i.e. the increase in the total electrodynamic power.

Since an increase of the system efficiency can be realized, in particular, by increasing the moment of inertia on the shaft of the system, then the problem is reduced to compensate for energy expended on the shaft of the electric machine due to receipt of additional reactive power in the electrical circuit, i.e. an additional transformation of the magnetic component of current which is transmitted to the stator of an induction motor (BP) and, in the future, the organization of its consumption through the mechanics when transferring additional moment of inertia using the inertial mass of the flywheel rotor HELL, which is transmitted to the shaft of the synchronous generator (SG), i.e., due to positive feedback.

Thus, the need to organize positive feedback using as mehanicheskij the synchronous compensator, and electronic synchronous compensator.

The technical result is to increase the efficiency of electrical machines by increasing the moment of inertia on the shaft of the system, including fuel economy in the drive motor, which later (after deceleration) may carry out work at a customer, as well as increasing the efficiency of the synchronous generator due to incremental generation, if it works in the mode of providing the consumer with electricity.

The technical result is achieved due to the synchronous generator compensator, which represents the combined electric machine, on the same shaft which consistently placed the rotor of a drive motor, synchronous generator with thyristor excitation scheme and an asynchronous motor with squirrel-cage rotor, the circuit combination of an electric machine is equipped with an electronic frequency Converter with power, the power of an induction motor, the output from the stator of the synchronous generator and the input to the stator of an induction motor is connected through an electronic frequency inverter feeding induction motor synchronous generator current with discrete sync frequency and the rotational frequency of the pulse induction motor, the electronic circuit transforms light energy into which the frequency Converter is equipped with one or several bulk capacitors, connected in series, with the provided mechanical positive feedback from the rotor of an induction motor to the rotor of the synchronous generator through a single shaft of their rotors, and the rotor of an induction motor is made in the form of a flywheel of large diameter, radius R and mass is correlated with the radius r and the mass of the rotor of the synchronous generator, respectively, and calculated by the formula of mechanical resonance, where the ratio R/r is selected in accordance with the numerical Fibonacci series, the rotor of the asynchronous motor has a ratio of width to its radius in accordance with the number of the Fibonacci series, for the ratio R/r, and the diameter of the stator of an induction motor increased respectively to the rotor with the provision of the gap between the stator and rotor from 1 to 3 mm SGK is a combined electric machine, the circuit which is equipped with an electronic frequency Converter with power, the power of asynchronous motor (HELL), the rotor HELL is made in the form of a flywheel of large diameter, radius, and mass of which is correlated with the radius and mass of the rotor of the synchronous generator (SG). The rotor HELL is the ratio of the width to the width of the rotor HELL is a multiple of the length of the mechanical longitudinal elastic waves in rigid shaft, and the diameter of the stator HELL is increased respectively to the rotor to ensure the gap is between the stator and the rotor.

In the private enforcement of the radius and the mass of the rotor HELL is correlated with the radius and mass of the rotor IG, respectively, calculated by the formula of mechanical resonance, where the ratio R/r is 3 to 1, and the rotor HELL has a width in relation to the radius of 1 to 4.

The drawings illustrate one of the best variants of realization of the device.

Figure 1 shows the General scheme of the synchronous generator compensator.

Figure 2 - shows a functional diagram of the generator-compensator.

Figure 3 - shows the kinematic diagram of the generator compensator.

The device consists of a drive motor (DD) (1), the synchronous generator (SG) with thyristor excitation scheme (2), frequency Converter (FC) (3) and asynchronous motor with squirrel-cage rotor (HELL) (4). Shaft (5) of the rotor (6) PD, rotor (7) of the CG and the rotor (8) HELL is a single shaft (5). A single shaft (5) may be for the convenience of Assembly consists of rigidly connected parts, interconnected by couplings (9), which provide a single rigid structure of the shaft (5). Due to a single shaft torque with the rotor (8) HELL is transmitted to the rotor (7) SG and the rotor (6) of PD. While a single shaft (5) when the transmission of torque works on the torsion in the area of elastic deformation of the material from which it is made. The rotor (8) HELL in the form of flywheel large diameter, radius R and mass M which sootnesi is consistent with the radius r and mass m of the rotor (7) SG, respectively, calculated by the formula of mechanical resonance. The radius of the rotor (6) of PD can be taken on the basis of the power required by the PD, which he should develop on the output shaft at the beginning of the operation of the system in the mode of the dispersal system, and depends on applied thereto the load.

The formula of a mechanical resonance are calculated at the condition of mechanical resonance in a rotating solid body, which is the rotor (8) HELL, made in the form of a flywheel with a large mass and radius, and therefore it can be taken as a rigid body. Mechanical resonance occurs when the radius of rotation of a rigid body is a multiple integer of the lengths of the longitudinal (along the axis of the shaft) of the elastic deformation of the mechanical waves. Since the rotational motion of a rigid body is similar horizontal vertical oscillatory process, when horizontal vibrations, the effect of vibration, i.e. standing waves (figure Chladni), and vertical oscillations, the effect of the transformation at each point in time the circle into an ellipse in the action of centrifugal tensile force on the body of the flywheel (see Mechanics, acoustics and heat. Paul W., ed. Nauka, M., 1971, p.54-58). I.e. when the oscillatory movement of the body and the presence of resonance formed Chladni figures (Melde F.E., Chladni''s Leben und Wirken, nebst einem chronologischen Directory its literarischen Arbeiten, 2 Aufl., Marburg, 1888; E.F.F.Chladni (1756-1827), the Nature, 1956, v.178, No. 4543).

Thus, geometrically, from the "triangle of pulses" by the Pythagorean theorem, taking into account the rotation of propagation of longitudinal pulses can be seen that the ratio R/r can be selected in accordance with the numerical Fibonacci series, such as 3 to 1, and the ratio of the width of the flywheel HELL to its radius can be selected 1 to 4, which is the size to which asymptotically approaches the ratio of the length of the mechanical elastic longitudinal wave to the radius R of the flywheel rotor (8) HELL. Induction motor made custom design. The geometry of the structure AD (4) is that in relation to the standard asynchronous motor with squirrel cage rotor (8) is executed in the form of a flywheel of a small width (narrow) with a larger radius R and mass M with the aim of increasing centrifugal momentum and rotational momentum with minimum power consumption, developed the inverter (3) reactive power. Accordingly, the design of the rotor (8) is increased in diameter and the stator (10) HELL. And the gap between the rotor (8) and the stator (10) can be selected from 1 mm to 3 mm

Electrical output ("A") from the stator (9) SG and electrical input ("B") on the stator (10) AD connected via a frequency Converter (FC) (3) supply the HELL current with discrete sync frequency current from the SG and the rotational frequency of the pulse HELL (see Figure 2). Electrical circuit (11) FC (3)provided with one or more bulk capacitors (12), connected in series with providing positive mechanical feedback ("G") from rotor (8) HELL to the rotor (7) SG due to a single shaft (5) rotors AD (3) and SU (2). A single shaft (5) connects the rotor (13) PR (1) with a rotor (7 and 8) SG (2) and HELL (3) (see figure 3). In the proposed auxiliary power unit SGK circuit (11) with a capacitor (12) and a frequency Converter (3) is an electronic circuit of a large capacity. The inverter can be taken from known devices of the type FR - E500, manufacturer Mitsubishi Electric or FC by Danfoss.

The device operates as follows.

In the initial period of operation of the system to overcome its resistance to magnetic flux, and then when the timing condition of the current frequency in SG and HELL, with the help of a frequency Converter equipped with a condenser, the system will be supplemented with additional energy received through reverse positive relationship by supplying reactive power to the shaft of an induction motor (HELL).

First start the drive motor (1), which is in the run mode provides the output of the synchronous generator (2) in work mode, and through a common shaft (5) exercise and promotion of the rotor-flywheel (8) asynchronous motor (4), the voltage on the stator (10) HELL is not available. Next, connect the frequency Converter (3), which enables and disables AD (4), thereby achieving Singh is anizatio rotational frequency of the pulse, which is generated when the rotation of the rotor (9) SG (2) and rotor-flywheel (8) AD (4). Because a single shaft (5) is not absolutely rigid body and the transfer of rotational momentum is subjected to twisting, characterized by the modulus of elasticity of the material from which it is made, from the rotor (8) (i.e., flywheel) AD (1) to the rotor (7) SG transmitted horizontal vertical oscillations of the flywheel (8), propagating along the shaft in the form of a sine wave kinematic oscillations backward positive relationship with the rotor (7) SG (2), resulting in the accumulated moment of inertia of the flywheel (8) in the form of rotational pulses pass to the rotor (7) SG, and he, in turn, produces the same frequency for more power, reactive component which is stored in the bulk capacitor (12), and with the help of a frequency Converter (3) transmit to the stator (10) HELL.

At that time, when the HELL (4) is turned off, energy is transferred to the output "A" of SU (2) on the rotor-flywheel (8) AD (4), making them known to the resonance, and when the HELL (4), with a rotating flywheel rotor (8) is passed through a positive feedback "G" more power to the rotor (9) SG (2), which, in turn, carries out the accumulation of additional energy in the bulk capacitor (12), and through the inverter (3) done what is the recharge capacity of AD (4) due to the reactive component, obtained due to the additional inertia of the rotor-flywheel (8) AD (4).

Because the change in time of the magnetic field in the circuit (11) is obtained from the electrical oscillations in the system output "And" SG (2), i.e. receive alternating current, such effect in electronics called the work of the oscillating circuit. In this case, the windings of the stator (9 and 10) SG and HELL, is connected to the capacitor (12) are also oscillatory circuits of the low frequency of 50 Hz.

Thus, the frequency Converter (3) is functionally synchronous compensator, i.e. due to the presence in its structure of capacitors (12) it is able to produce more reactive power, which is then consumed by the asynchronous motor (4) in the form of a rotating magnetic field on the stator of the engine.

In the kinematic scheme SGK considered the rule of the lever of Archimedes, the number of Fibonacci numbers and the Golden ratio. Thus, in the proposed device uses a combination of the laws of mechanics in application to electrodynamics.

For SGK fair formula MVR≠mvr, where additional reactive energy supplied from the inverter (3) to the input "B" of HELL (4), is effectively used in the form of mechanical energy on a common shaft (5) AD (4) with a big move at the moment on the rotor (8) (i.e. when the rotation it is functionally the C is at the same time and heavy flywheel, which accumulates moment of inertia). At the same time, if there is already a rotating flywheel (8) squirrel-cage rotor of an induction motor, a fair formula Q=MR2where Q is the rotational momentum of the rotor HELL, M is the mass of the rotor HELL (flywheel), R is the radius of the rotor HELL (shoulder), which shows a linear dependence on mass and quadratic dependence on the radius (see Mechanics, acoustics and the doctrine of the heat. Paul W., Ed. by Suvorov N.P., ed. Nauka, M., 1971, pp.96-97 and p.101). When selecting the ratio of the radii and masses of the rotors IG and AD is equal to the ratio selected in accordance with the Fibonacci series, and the ratio of the width of the rotor HELL to its radius in accordance with the Golden section, get a managed resonance or managed "split" system. These both effects occur when synchronizing electric and magnetic fluctuations in the system SGK, and hence, increases the production of mechanical and accordingly the electric component of produced energy, i.e. increases the efficiency of the system (see the doctrine of the electricity. Paul W., Fizmatgiz, 1962, p.185-187).

The method of operation of the system can also be used in systems that operate in harsh conditions, with a heavy load on the output shaft or a stationary power generating stations.

Known methods of operation of induction motors, the joint is United to the system together with generators and/or capacitors, however, they play the role of an additional source of reactive power by obtaining it from the outside system that does not increase efficiency.

For example, it is known for the invention "Method of increasing factor (cos ϕ), power transmission parametric electrical machines", patent RU 2076432, publ. 1997.03.27, IPC NC 19/00, NC 17/08, including the change of inductance and capacitance with the same frequency and in phase, which is ensured by placing the parts of the rotor inductive element and the rotary plates of the capacitive element on the same shaft. The invention solves the problem by placing the parts of the rotor inductive element and the rotary plates of the capacitive element on one shaft that extends the use of parametric electric vehicles in the electric power industry, where they can be used as generators and motors in power plants. However, the problem is solved by increasing the modulation depth of periodically varying inductance simultaneously with the periodic change of electric capacity, but do not use the increased efficiency of the synchronous generator due to the incremental generation and do not increase system efficiency by increasing the moment of inertia on the shaft system.

Closest to the proposed method is the invention of "the Way to gain power is on the motor shaft", patent RU 2114497, publ. 1998.06.27, IPC NC 7/02, F03G 3/08, H02J 3/30, namely, that the flywheel is rigidly mounted on the free shaft is mechanically connected to the shaft of the motor, and switching carried out discretely. The invention allows for greater capacity on the motor shaft due to the transition of potential energy from the upper dead point position of the flywheel is eccentric to the lower dead point in the kinetic energy of rotation, however, does not allow to increase the efficiency of the system by increasing the moment of inertia on the shaft of the system and increase the efficiency of the synchronous generator due to incremental generation, if it works in the mode of providing the consumer with electricity. In addition, the system will not work as difficult to implement synchronization in the horizontal direction of the shaft, which is fixed to the flywheel-eccentric or horizontal position of the motor shaft, the rotor of which is made in the form of a flywheel is eccentric with the period of commutation.

To increase the efficiency of the entire system SGK required to achieve mechanical resonance of the flywheel, reading from it additionally obtained rotational momentum and through him to get the additional production of electricity, part of which is spent on the generation of reactive power for feeding an induction motor, in which ceredi, causes of Electromechanical resonance in a synchronous generator, i.e. managed "split" system. In other words, you should arrange Electromechanical oscillatory circuit, operating in a given cyclic mode with the required frequency and uses the accumulated inertia mass is in one phase and the accumulated inertia of the electromagnetic field is in a different phase, i.e. increasing centrifugal momentum and rotational momentum with minimum power consumption, developed the inverter reactive power.

In the task, and when the ratio of the masses and their shoulders reach by increasing the efficiency of the entire system.

The technical result is achieved by the method of SGK, in which pre-dispersed by the rotor of the synchronous generator and induction motor using a drive motor, after the output of a synchronous generator compensator on the operating mode carry out taking active power from the synchronous generator, the filing of a frequency Converter, which produces an additional reactive component of current and accumulates it in the bulk capacitor, while achieving synchronization frequency of the output current of the synchronous generator and the input current of an induction motor by providing the phase difference of these currents 180° served Supplement is inuu reactive power at the stator of an induction motor, carry out taking mechanical energy from the rotor of an induction motor the rotor of the synchronous generator and the drive motor with getting Electromechanical resonance, while providing a "controlled separation" of the rotor of the synchronous generator by supplying incremental rotational impulse to the shaft of an induction motor, supplied to the rotor shaft of the synchronous generator.

This ensures that the kinetic energy of the rotor HELL to the rotor of the SG through the shaft. Achieve "controlled separation" SG through the implementation of the preliminary acceleration of the rotors SG and HELL with a drive motor (PD), use of electronic frequency Converter with the inclusion of a bulk capacitor, the submission of additional reactive power at the stator HELL, extraction of mechanical energy from the rotor HELL on the rotor IG and PD with getting Electromechanical resonance, while providing a "controlled separation" of the rotor SG due to the discrete filing incremental rotational impulse to the shaft HELL is supplied to the rotor shaft SG, calculated by the formula:

ΔG2IG-AD2(M-m)R2/r2,

where

G - rotational momentum to HELL and SG, respectively,

ω - the frequency of the output current IG and the rotational frequency of the pulse at the output of HELL,

R - for the with rotor HELL,

r is the radius of the rotor IG,

M is the mass of the rotor HELL,

m is the mass of the rotor SG.

The drive motor (1) spins synchronous generator (2) (having a thyristor circuit excitation). After reaching the operating cycle of the system generated active power with output "And" partially applied to the frequency Converter (3), which produces additional reactive power and delivers it to the input "B", feeding induction motor (4). Frequency Converter (3) in the circuit simultaneously performs two functions: provide additional reactive power and synchronizes the current frequency, and therefore, the rotational speed of the common shaft (5) and the rotational speed of the rotor (8) of the AD relative to the stator PD (1), SG (2) and AD (4).

SG (2), FC (3) and AD (4) work as a single Electromechanical Assembly, which is the synchronous generator-compensator (SGK), i.e. synchronous generator (2) works in managed mode "separation", and the inverter (3) performs a function of a static synchronous compensator (SC) due to the presence of capacitors (12). Due to the additional reactive power transferred to the stator (10) asynchronous motor (4), provide a rotating magnetic field on the stator (10) AD(4) of the engine. Moreover, to ensure the increase of the spin of the rotor (8) AD (4) ensure, through the inverter (3) the phase difference of the currents at the output "A" and input "B" V° .

When the coincidence of the frequency of rotation of the rotors HELL (4), SG (2) and DD (1) on a common shaft (5) receive Electromechanical resonance. In the achieve additional gains in energy systems and reduce the fuel consumption of the driving motor (DD) (1). Due to the discrete DC braking produced by the electronic system of the inverter (3), managed to reach the "separation" of SU (2).

Frequency Converter (3) in the proposed scheme operates functionally as a non-mechanical (e) similar mechanical synchronous compensator that generates and accumulates reactive power in an electrical circuit and transmits it to the asynchronous engine (which, in turn, compensates for part of the mechanical operation of a synchronous generator and a drive motor via a common shaft (5)that defines an additional gain in mechanical energy. In addition. for the proposed SGK mechanism mechanical synchronous compensator, and functionally mechanical compensator is a synchronous generator (2) additional "acceleration" due to the receipt through the reverse positive relationship from HELL (4) incremental capacity, developing in this period of the cycle of operation of the system, essentially, in a synchronous motor with a lightweight rotor, which in this mode operates on Alstom go and produce additional reactive energy for asynchronous motor (as a consumer).

Thus, due to the mechanical force (kinetic energy of the squirrel-cage rotor-flywheel) induction motor provides additional torque to the SG, which, in turn, increases the speed of the rotor-flywheel, managed through "separation" and, consequently, the generated alternating current, a frequency Converter, generating additional reactive power of HELL, i.e. carrying out the process of producing reactive power, accumulation and transfer when connecting to AD to the inverter as a single continuous process through capacitors, provides additional acceleration of the rotor HELL, the torque which is removed at the output and transmitted to the synchronous generator, when this synchronization occurs on the angular momentum, i.e. the mechanical synchronization pulse at a frequency of performing the work (kgf·m) torque (kgf·m/s) in SG and HELL, and the current synchronization frequency, performing the work (j) power (j/s) in SG and HELL, which is paid for by hard-link shafts PD, CR and HELL. However, it is also required to synchronize the current AD and SG frequency using a frequency Converter and providing the phase currents 180°.

In the proposed method, the frequency Converter (FC) provides synchronization of rotation of the synchronous generator SG and HELL asynchronous engine in the La, more precisely synchronizing the frequency of the electric current in SG and HELL, which makes the addition of vectors EMF in SG and HELL or the offset of the phase current is exactly 180°; forms a positive feedback between SG synchronous generator and a HELL of an induction motor; provides reactive energy HELL induction motor, i.e. the electromagnetic component of the Wp in the form of a rotating magnetic field on the stator HELL, and, consequently, increases the overall efficiency of the system (Electrical engineering and electrical equipment. General course, edited Yastrebova P.P., ROWWIDTH, 1963, s-612).

Thus, the used resonance at the natural frequency of the rotor HELL in the form of a flywheel and the rotation frequency of the magnetic field of the stator HELL. This mechanical oscillation that occurs along the axis of rotation of the flywheel is transmitted on a single shaft in the form of elastic longitudinal waves twisting the rotor SG in the form of feedback, the transmitting additional rotational momentum gained by the heavy rotation of the rotor HELL.

Since V22Rr2consumed by the engine power is proportional to ω2, Supplement additional energy gain when increasing the angular velocity of the flywheel before the start of the resonance and the lack of it when decreasing the angular velocity of the rotor of an induction motor, since there is no recharge due to reactive power. Trad is largely the same inverter is used for soft-start, stop protection during emergency situations, and to adapt the load power consumption.

The novelty of the method is ensured by the fact that they use "controlled separation" at the expense of the frequency Converter is used, the mode of the on - off voltage, which provides the principle of positive feedback controlled "separation", the combination and coordination of the synchronization mode and the resonance mode, and use the calculated ratio of forced oscillations and free oscillations of the system, because of the forced vibrations are oscillations of the generator, and the free vibrations are oscillations of the rotor-flywheel HELL (rotational motion in mechanics - is analog at the same time horizontal vertical oscillatory process).

Since the efficiency of the generator is equal to ηgene=Pelectr/Pfurfor gains in strength increased leverage, because the higher the ratio, the greater the gain in power of the generator.

Achieved technical result - increase system efficiency by increasing the moment of inertia on the shaft of the system, therefore saving fuel the drive motor, which later (after deceleration) may carry out work at a customer, increase efficiency synchronous generator SG due to incremental generation, if it works in mode shall provide the consumer with electricity. In addition, there is a compensation of energy expended due to the mechanics through the shaft, through the transformation of reactive power in an electrical circuit, i.e. the magnetic component of the current, which is in the form of a rotating magnetic field on the stator HELL is much cheaper than its active component, and consequently, reduction of electricity generated.

The proposed method can also be used in stationary power generating plants, especially in the automobile, such as MES, i.e. in severe emergency situations. The effect is not the end consumer and the seller of electricity, i.e. the plant, at the expense of additional power generation.

1. Synchronous generator-compensator, which represents the combined electric machine, on the same shaft which consistently placed the rotor of a drive motor, synchronous generator with thyristor excitation scheme and an asynchronous motor with squirrel-cage rotor, the circuit combination of an electric machine is equipped with an electronic frequency Converter with power, the power of an induction motor, the output from the stator of the synchronous generator and the input to the stator of an induction motor is connected through an electronic frequency Converter feeding the induction motor from Synchron the th generator current with discrete sync frequency and the rotational frequency of the pulse induction motor, the electronic circuit of the frequency Converter provided with one or more bulk capacitors connected in series, with the provided mechanical positive feedback from the rotor of an induction motor to the rotor of the synchronous generator through a single shaft of their rotors, and the rotor of an induction motor is made in the form of a flywheel of large diameter, radius R and mass is correlated with the radius r and the mass of the rotor of the synchronous generator, respectively, and calculated by the formula of mechanical resonance, where the ratio R/r is selected in accordance with the numerical Fibonacci series, the rotor of the asynchronous motor has a ratio of width to its radius in accordance with the number of the Fibonacci series that follows the selected ratio R/r, and the diameter of the stator of an induction motor is increased respectively to the rotor with the provision of the gap between the stator and rotor from 1 to 3 mm.

2. Synchronous generator-compensator according to claim 1, characterized in that the ratio R/r is 3 to 1, and the rotor of the asynchronous motor has a width in relation to the radius of 1 to 4.

3. The method of operation of a synchronous generator compensator, wherein the pre-drive the rotor of the synchronous generator and induction motor using a drive motor, after the output of a synchronous generator compensator on the operating mode assests the Ute removal of active power from the synchronous generator, filing electronic frequency Converter, which produces an additional reactive component of current and accumulates it in the bulk capacitor, while achieving synchronization frequency of the output current of the synchronous generator and the input current of an induction motor by providing the phase difference of these currents 180°serves additional reactive power at the stator of an induction motor, carry out taking mechanical energy from the rotor of an induction motor the rotor of the synchronous generator and the drive motor with getting Electromechanical resonance, while providing a "controlled separation" of the rotor of the synchronous generator by supplying incremental rotational impulse to the shaft of an induction motor, supplied on the rotor shaft of the synchronous generator is calculated by the formula

ΔG2IG-AD2(M-m)R2/r2,

where G is the rotational momentum of the induction motor and synchronous generator, respectively;

ω - frequency current at the output of the synchronous generator and the rotational frequency of the pulse at the output of the induction motor;

R is the radius of the rotor asynchronous motor;

r is the radius of the rotor of the synchronous generator;

M is the mass of the stator of an induction motor;

m - the ACCA stator of the synchronous generator.



 

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FIELD: electric engineering, possible use for providing electric power to objects.

SUBSTANCE: in alternating current electric power system as power supply an alternating current power supply is used and synchronous electric motor is used as electric motor. First, second and third outputs of alternating current supply through a block of three automatic releases are connected respectively to first, second and third inputs of synchronous electric motor. Fourth, fifth and sixth inputs of aforementioned block are respectively connected to first output of first transformer ferro-resonance stabilizer of voltage, to second outputs of aforementioned stabilizer and second transformer ferro-resonance voltage stabilizer, and also to third output of aforementioned second stabilizer. Second stabilizer has first and second inputs, connected respectively to first and second outputs of synchronous generator with exciter. Its second output is also connected to second input of first transformer ferro-resonance stabilizer, having first input, connected to third output of synchronous generator with exciter.

EFFECT: increased power.

1 dwg

FIELD: electric engineering, possible use in electric power supply devices.

SUBSTANCE: electric power supply system consists of constant current supply, rheostat, automatic release, electric motor, synchronous generator with exciter, three-phased rectifier with smoothing filter and consumed units. Synchronous generator with exciter is in rigid connection with electric motor and has first, second and third outputs, connected respectively to first, second and third inputs of consumed units. Output of constant current supply is connected through the rheostat to first input of automatic release, second input and output of which respectively are connected to output of three-phased rectifier with smoothing filter and to input of electric motor. First and second inputs and first and second outputs of first transforming ferro-resonance voltage stabilizer are respectively connected to first and second outputs of synchronous generator with exciter and to first and second inputs of three-phased rectifier with smoothing filter. Second input of the latter is also connected to first output of second transforming ferro-resonance stabilizer, second output of which is connected to third input of three-phased rectifier. First and second inputs of second stabilizer are respectively connected to second and third outputs of synchronous generator with exciter.

EFFECT: increased time of constant rotation of electric motor shaft.

1 dwg

Electric machine // 2306657

FIELD: electric engineering, in particular - electric machines and electric drive.

SUBSTANCE: in electric machine, containing a rotor made of magneto-conductive material with constant magnet, polarity of which is alternated in tangential direction, and a stator, magnetic duct of which is made of magneto-conductive rings and longitudinal closing packets, and its windings are made of circular sections, distributed in axial direction and positioned between two adjacent magneto-conductive rings, in accordance to invention, control winding is positioned, consisting of sections, which are interconnected in such a way, that magnetization force signs of these sections alternate in tangential direction.

EFFECT: ensured control of output voltage amplitude, reduced vibrations and acoustic noise of the machine, and also reduced hazard of ignition of the machine in case of short circuit in windings.

4 dwg

FIELD: electric engineering, possible use for providing electric power to objects.

SUBSTANCE: autonomous electric power system additionally contains three-phased rectifier with smoothing filter, automatic release and block for automatic power adjustment. First, second and third outputs of synchronous generator with excitation device are connected respectively to first, second and third inputs of three-phased rectifier with smoothing filter. Output of rectifier is connected through automatic power adjustment block to first input of automatic release. Second input of release is connected to rheostat output. Output of release is connected to input of direct current electric motor.

EFFECT: provision of rotation of electric motor shaft without constant connection to battery.

1 dwg

FIELD: the invention refers to the field of electric technique.

SUBSTANCE: it is designed for application in electric drives of lifting mechanisms particularly in an execution mechanism for sinking and lifting of the rods of the emergency protection of an atomic reactor of the RBMK type. The invention is designed for obtaining of a reliable non contact electric car for creation of a breaking torque dependable from the direction of rotating in the absence of supply voltage. The essence of the invention is in the following. The winding of the non contact electric car having an inductor with constant magnets and an anchor without grooves is fulfilled in the shape of a bushing connected with the anchor with the help of screw grooves and lugs, providing a pivotal travel of the bushing in a working gap.

EFFECT: The proposed arrangement provides effective braking and consequently sinking of the load at a safe speed at falling in cases of refusal of the electric drive of the lifting mechanism and creates negligible braking torque at its lifting.

5 dwg

The invention relates to measuring technique and can be used in electrical engineering, electric drive and power generation during testing and operation of synchronous machines

FIELD: mechanics, possible use in power engineering, in motors and mechanisms of various powers.

SUBSTANCE: centrifugal motor power amplifier is attached to free ends of two-sided shafts of engines, to output shafts of reducers and gearboxes, to transporting wheels and rotating shafts. The device may be manufactured as a separate machine in a separate body with its own rotating shaft with broad spectrum of powers and rotation speeds. In centrifugal power amplifier, two torsion springs and four centrifugal loads are applied. Coils of torsion springs are positioned on bushings, which are positioned on the shaft of motor. One end of torsion springs is fastened on vertical diagonal of a rhombic solid, and on their second ends Z-like shapes are suspended, on which centrifugal loads are suspended on slings. Power output in the experiment amounted to 61 watts, and amplification coefficient amounted to 6,8.

EFFECT: increased power.

1 dwg

FIELD: electrical and electromechanical engineering; electric generator drives.

SUBSTANCE: proposed electromechanical drive that has generator and high-speed linear motor whose disk rotor is used as winch is characterized in that it incorporates two high-speed linear motors with large-diameter disk rotors installed for setting two working elements of one mechanism in opposite rotary motion and that inductors of high-speed linear motors are fixed in opposition within frame; spider of one disk rotor is attached to generator shaft through splined joint and that of other disk rotor is loosely mounted on generator shaft.

EFFECT: facilitated in-service maintenance and control, enhanced reliability and power output of drive.

3 cl, 1 dwg

FIELD: power supplies for electric vehicles, electric buses, and the like.

SUBSTANCE: proposed electrical-energy storage is, essentially, electrical machine that has frame carrying stator with stator coils, field coils, and shaft-mounted solid metal rotor. Stator windings whose cores are attached to frame are disposed over circumference with solid homogeneous-metal rotor possessing magnetic properties arranged in its center. Rotor has two opposing magnetic poles disposed on circumference and two projections made on rotor butt-ends. These projections mount field coils shielded by and fixed in position on end plates of frame. Magnetic sensors designed to control position of rotor magnetic poles relative to stator coils are disposed on one of end plates; permanent magnets insulated from rotor are installed at butt end of respective rotor projection.

EFFECT: enhanced power characteristics.

5 cl, 5 dwg

FIELD: power engineering; buffer energy accumulators; transport systems, emergency power supply units, wind-power and solar stations.

SUBSTANCE: proposed accumulator has flywheel and drive with supports located in evacuated chambers having different levels of vacuum and separated from each other; evacuated chambers are filled with rarefied gas; electric drive is located in one of them at low level of vacuum; flywheel is located in other chamber at increased level of vacuum of 0.1 to 0.01 Pa; turbo-molecular pump mounted on flywheel shaft is used for maintenance of increased vacuum in chamber by pumping the gas from this chamber to chamber of drive. At least one chamber is used for drives and supports which is separated from flywheel chamber by seals; they are hermetic during working rotational speeds of flywheel.

EFFECT: low aerodynamic losses in flywheel chamber; enhanced cooling efficiency without availability separate cooling systems.

7 cl, 3 dwg

Idle air control // 2212750
The invention relates to the field of electrical engineering, in particular to the subsystems idling

The invention relates to the field of electrical and mechanical engineering and can be used for the accumulation and transformation of energy

The invention relates to mechanical engineering and electrical engineering and can be used in vehicles and devices, where used engines

Generator flywheel // 2140564
The invention relates to electric machinery industry, such as manufacturing Makhovikov propulsion generators
The invention relates to mechanical engineering and electrical engineering

FIELD: electricity.

SUBSTANCE: invention can be used as electromechanical converter of mechanical energy delivered to one machine input (mechanical) and dc electric energy simultaneously delivered to its other input (electrical) into integrated dc electric energy. In electrical machine containing armature with winding and brush-collector unit of dc machine and rotor with short-circuited winding, over rotor winding of asynchronous motors that are able to rotate around each other, according to this invention a generator winding is additionally laid in armature slots. Output of this winding is connected by means of contact rings and brushes with net of alternating current consumers.

EFFECT: implementation of summing and converting of mechanical and dc electrical energy into electrical energy with simultaneous improvement of electrical energy parameters stability at output.

3 dwg

FIELD: electricity.

SUBSTANCE: rotor winding is performed as rotor windings of asynchronous machines with phase rotor in the circuit of which three-phase full-wave regulating thyristor rectifier unit is included. At that, output of this rectifier unit is connected in series with armature circuit using keys of switch unit that is able to perform either serial-additive or serial-subtractive connection with armature circuit depending on sign of armature rotation frequency change direction.

EFFECT: providing control for output rotation speed of two-dimensional electric machine and for frequency of generated by it voltage when input signals are continuously and indeterminantly varying.

2 dwg

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