Electric generator with opposite rotating inductor and armature

FIELD: electricity.

SUBSTANCE: electric generator (EG) includes housing with detachable covers, housing of inductor also with detachable covers made as an integral part of hollow shaft. Electromagnets with cores and coils are installed on inductor housing. Inductor assembled with electromagnets and covers is installed on bearings arranged in covers of EG housing. Two armatures are installed in EG, one of which is fixed, and the other one is movable, or one is movable with possibility of its rotation inside inductor. Windings of fixed armature are fixed in slots of detachable EG housing, and windings of movable armature are fixed in slots of armature housing made as an integral part of shaft and installed inside inductor by means of bearings on brackets fixed on EG base. Between inductor and movable armature there installed is reduction gear which provides simultaneous synchronous rotation of inductor and armature in opposite directions or as per simplified scheme, or with possibility of automatic control of rotation frequency of inductor and armature, and the condition at which the ratio of speeds of opposite rotation of inductor and armature Vi/Va=const is met in both cases.

EFFECT: higher quality of voltage supplied to electric mains, higher EG capacity, operating reliability, reducing material consumption, reducing manufacturing cost of EG, and enlarging application field.

8 cl, 5 dwg

 

The invention relates to energy and can be widely used in various fields of national economy, in particular for devices with alternative energy.

The growing needs of industry in electricity demand the introduction of new energy-saving technologies and development of alternative energy. Under these conditions, the improvement generators (EG)as the main devices for generating electricity is of paramount importance. The idea of improving the characteristics of the EEG by counter-rotation of the rotor and stator have been intensively implemented in practice in the process of development of alternative energy.

Known floating rotary station with a vertical rotor, which rotor EH is driven wind power unit (WPU) [Magazine "inventor of the" No. 2, 1989, p.15]. To increase the speed of displacement of the rotor relative to the stator frame installation together with a fixed stator is also rotated by the flow of the wind, but in the direction opposite to the rotation of the rotor. The most significant drawbacks is the lack of synchronization of the speed of the stator and rotor, as well as limited scope. Known turbine generator made rotor, the rotor of which is mounted coaxially for rotation in opposed the s side of which is connected with EH turbine [patent RU No. 2217601, F01D 15/10, 2002]. Counter rotation of each rotor is provided from two different drives, Saharova wheel and drum, which in turn rotate with the working fluid flowing out of the tubes Saharova wheels. In this scheme there is no synchronization of the rotational speeds of each of the rotors, and its absence leads to chaotic pulsating voltage fluctuations. It also affects the quality of the incoming supply voltage and may cause malfunction of the equipment by consumers, and in some cases, and for emergency situations. In addition, the device only works on one type of drive, which significantly limits the scope of its application.

Also known wind generator dual speed [patent RU NO. 2355909, F03B 9/00, 2007]adopted as a counterpart, which contains one group of blades, rotating the rotor in one direction, and a second group of vanes, rotating stator in the opposite direction. The device is claimed to increase the power density of the wind power generator preferably for facilities with low wind speeds. Among the disadvantages of this device, it should be noted the low quality of retiring current collector voltage due to the lack of synchronization of the rotational speeds of the rotor and stator. Different speeds of rotation of each of the second group of blades due to the fluctuations of the flow velocity of the wind, inaccuracies of manufacture of the blades and Assembly of wind turbines in General will affect the quality of the output voltage, the form of which will be different from a sine wave. In addition, this device has limited scope.

In the following description uses the terms "coil" and "anchor"because while simultaneously rotating the inductor and the anchor term "stator" and "rotor" lose their meaning.

The purpose of this application is to improve the quality of incoming supply voltage, increasing capacity EG, increased operational reliability, reducing material consumption, reducing the cost of manufacture EG, the expansion of the scope.

This objective is achieved in that in Aigues with counter-rotating stator (coil) and a rotor (armature), installed in the housing and driven simultaneously in rotation of the two actuators with opposite ends of the housing, according to the invention in a split housing AG is set or two anchors, one of which is anchored and the other movable, or one movable anchor with the possibility of its rotation inside the inductor winding fixed anchors secured in the slots of the split housing of Aigues, winding rolling anchors secured in the slots on the chassis, made integral with the shaft, one end of which is fixed to the current collector, and friend the once rigidly fixed gear capable of transmitting the rotation of the inductor, and installed inside the inductor with the bearings on brackets fixed on the basis of the EEG, in this case the inductor attached to the ends of the base - covers made integral with the hollow shaft, on the opposite ends of which are rigidly fixed auxiliary DC generator and gear driven gear connected with the shaft of a movable armature, in this case the inductor is installed with bearings on front covers EG, on the outer and inner surfaces of the body of the inductor fixed electromagnets, the magnetic field which simultaneously interact with the magnetic fields of the stationary and movable anchor, and on the outer and inner surfaces of the body of the inductor is set either equal or different number of magnets, the coil and a movable armature rotate in opposite directions with gear from one drive, the gearbox provides simultaneous synchronous rotation of the inductor and the armature in opposite directions, in which in each period (turnover) ratio of the velocities of the counter-rotation of the inductor and armature VA/VN=const, and also provides the ability to automatically control the rotation frequency of the inductor and the armature, the actuator AG can be set is for perpendicular, or parallel to the shaft of a movable armature with one of its ends.

Improving the quality of incoming supply from the EEG voltage is achieved in that between the inductor and the anchor is installed gearbox, which provides simultaneous synchronous rotation of the inductor and the armature in opposite directions, and the condition under which the ratio of speeds of the counter-rotation of the inductor and armature VA/VN=const, is performed during the whole time EH. The gearbox is installed with the possibility of automatic control of the rotation frequency of the inductor and the armature. Automatic adjustment of the frequency of rotation of the inductor and the armature when the change of frequency of rotation of the drive AG is carried out, for example, by using a servo or automatic transmission (similar to a car). If actuator, resulting in a rotation of the inductor or the anchor EH, increases or decreases the rotation speed, the gearbox automatically increases or decreases the speed of rotation of the armature. This is true for plants with alternative energy. In order to reduce labor costs and time calculations and design EG it is preferable that the constant in relation to the speed of the counter-rotation of the inductor and the armature was expressed as an integer.

Increasing the power in the EEG is achieved by installation in the Cabinet on the additional anchors, and also by varying the speed of relative rotation of the inductor and the armature.

Improving the reliability due to the fact that the work of the EG at lower speeds increases the life of his work without preventive and repair, and also reduces the likelihood of emergency situations due to the failure of individual parts, such as bearings.

The expansion of the scope of the claimed EH associated with its use not only in the sphere of small energy, but in most industries.

The reduction of the material claimed EH is because at the same speed of the drive (in comparison with classical device EG) reduced weight, size, reduced manufacturing cost, reduced maintenance and repair.

For example, consider the simple circuit device EG, with one pair of poles and one winding. In order to get the industrial frequency of 50 Hz, i.e. 50 (rpm) periods per second inductor with a stationary anchor should rotate with a speed of 50 revolutions per second, or that the same n=5060=3000 rpm, This speed of rotation of the inductor is large enough, especially for the EEG great power, and alternative energy. To reduce the speed of rotation of the inductor, PR is the preservation of the other characteristics EG unchanged, you can go two ways: by increasing the number of pairs of magnetic poles, which leads to an increase in the consumption of materials, complexity of the design and other difficulties, or by applying schema counter-rotation of the inductor and the armature.

If you increase the number of pairs of poles up to 12 (respectively the same number of windings), to obtain the frequency of the mains of 50 Hz with a stationary anchor, the inductor must rotate at a speed of(5060=3000):12=250 rpm And if the inductor and the armature will rotate towards each other with the same speed (gear ratio is 1:1), for EG, with 12 pairs of poles, the number of turns of the inductor and the armature is: (2560=1500):12=125 rpm, i.e. there is a decrease in the number of revolutions of the drive twice. And if the gear ratio is 2:1, i.e. the rotation frequency of the inductor to two times the frequency of rotation of the armature, it is possible to use the drive with the same speed for 8 pole pairs: (5060/3=1000):8=125 rpm In this case is significantly reduced size and weight of ethylene glycol at the same speed of the drive. The above calculations show that the change of gear ratio in the gearbox, you can achieve a significant reduction in the material intensity: reduction of size, weight, and cost of manufacture EG.

The proposed device is different from the known fact that EH is settled VA anchors, one of which is movable between a coil and a movable armature mounted gearbox, which provides simultaneous synchronous rotation of the inductor and the armature in opposite directions either simplified or automatic control of the speed of the inductor and the armature when performing in both cases, the conditions under which the ratio of the velocities of the counter-rotation of the inductor and armature VA/VN=const, which allows to judge the compliance of the proposed technical solution the criterion of "novelty".

The essence of the inventive device is illustrated by drawings, where figure 1 shows a longitudinal section of EG with two anchors and a simplified gear drive which is installed perpendicular to the shaft of a movable anchor, figure 2 shows a longitudinal section of EG with two anchors, automatic gearbox and actuator mounted on the end of a movable anchor, figure 3 shows a longitudinal section AG, in which the actuator is located on the end face of the rolling inductor, and a counter rotation of the inductor and the armature is provided with a reduction gear of the three bevel gears, figure 4 presents a diagram of the location counter rotating inductor and armature EG every 45 degrees for one period, figure 5 presents a graph of the magnitude of the magnetic flux in the armature AG in accordance with the scheme, PR is stavlennii figure 4.

EG (1) includes a housing 10 with a removable cover 9, a cylindrical housing 11 of the inductor with removable covers made integral with the hollow shaft 6. On the housing 11 of the inductor installed the coils with cores 13 and the coil 12. The inductor Assembly with the electromagnets and the cover 6 is mounted on bearings 8, placed in the cover 9 of the housing 10 EH. Inside the inductor has a movable armature, a housing 14 which is made integral with the shaft 3, mounted with bearings 4 on the uprights 2, which is fixed on the base 1 EG. On the shaft 3 anchors from each of the ends fixed respectively to the current collector 5 and the conical gear 16 and the shaft 6 of the inductor with one end installed auxiliary direct current generator 7 to the power coil 12 of the electromagnet inductor DC. At the other end of the shaft 6 is rigidly mounted bevel gear 15. The power coil 12 of the electromagnet coil is carried out by wire from the generator 7, which is shown in figure 1, 2 in phantom lines. Winding movable and fixed anchors the EEG performed in the grooves of their housings 10, 14 (1, 2) and in the slots of the housing 22 (Fig 3), and are also indicated on the drawings in phantom lines.

Forced ventilation of nodes, EG is made through holes in the cover 9 of the chassis AG and covers 6 of the inductor (not shown). To address the Oia various practical tasks on the body of the inductor AG can be set either completely permanent magnets, either one of the surfaces of the casing permanent magnets, and electromagnets. To reduce the influence of the magnetic flux inside the enclosure EG, the case of the inductor is made of a material with shielding properties possessed by metals with high magnetic permeability, such as iron alloys with Nickel.

Counter rotation of the inductor and the armature (figure 1) under the simplified scheme of the three bevel gears is provided from the drive shaft 18 which is perpendicular to the shaft 3 is rigidly mounted bevel gear 17, which is in mesh with the gears 15, 16. In some cases, the counter-rotation of the inductor and the armature, mainly for EG low power, provide either pulleys or gears.

In figure 2 the drive AG is carried out from the end of the shaft 3 of a movable armature, and the gear ratio between the shaft 6 and the shaft 3 is regulated by the device 19. As such a device associated with the drive can be installed servo drive, or other device with automatic speed control, for example of the type of the automatic transmission in the car.

Figure 3 shows a simplified diagram of the EEG with a single inductor and armature, in which the drive is also installed with the flange of the shaft 3, the inductor 23 is rotated inside and towards the anchor 22 and the housing 10 AG performed without additional exchange rate is TCI anchors. While the current collector 5 is mounted on the shaft 6 and the counter rotation of the inductor 23 and the armature 22 is also simplified through the bevel gears 15, 16 and the intermediate bevel gear 20, which is fixed through the bearings on the rack 21 mounted on the base 1 EH.

Figure 4 presents the scheme of counter-rotating at the same speed of the inductor and armature EG every 45 degrees during the same period. Thus the interaction of the magnetic field of the inductor and the armature, for clarity, is considered a simple example of EG with the device, one pair of poles of the permanent magnet (inductor N-S) and one winding (anchor 1-2), and the location of the inductor relative to the anchor in the diagram (figure 4) is fixed at the points when the value of the magnetic flux f in the anchor has extreme values, i.e. the maximum or minimum value. The index N arrow indicates the direction of magnetic force lines (magnetic field strength). From the diagram, figure 4 shows that all the processes of interaction of the magnetic field of the inductor and the armature when the opposite rotation during one period occur 2 times faster, if it occurred, or when the inductor relative to the anchor or the anchor relative to the inductor remained motionless. If you consider for one period (one turn changes the amount of magnetic flux through the armature, when either the anchor or stay fixed inductor (figure 5, a sine wave), we see that the value of the minimum and maximum magnetic flux f reaches every 90 degrees. For a counter-rotation of the inductor and the armature with the same speed with the same values of the minimum and maximum of f reaches every 45 degrees (figure 5, sine (A), i.e. twice as fast. Assuming that the actuator rotates the shaft of the inductor at a speed of 25 Rev/sec, while the fixed anchor at the output of the EG we get current with a frequency of 25 Hz, while opposite rotation of the armature and the inductor during rotation of the drive shaft of the inductor with the same speed of 25 Rev/sec we'll EG current with frequency of 50 Hz. Shown in figure 4 the scheme of interaction of magnetic flux of the inductor and the armature and schedule changes in the magnitude of the magnetic flux f figure 5 shows that changing the speed of rotation of the inductor and the armature can be created EG with specified characteristics, reducing the size and weight EG, reducing the speed of the actuator, increasing the capacity of EG, allowing you to design EG with different technical characteristics, including for alternative energy.

The proposed device has wide opportunities to create Aigues various structural schemes and sizes with different capacities and currents of different frequencies. As an example in this description is you can bring some of them:

in the case of ethylene glycol with one movable armature or the armature rotates within and towards the inductor or inductor rotates towards and inside the anchor;

- in Aigues both anchors are fixed, and the outer and inner surfaces of the body of the inductor establish the same number of electromagnets;

when both anchors are fixed, and the output EH receive currents of different frequencies, varying different numbers of coils with outer and inner surfaces of the housing of the inductor.

From the diagram in figure 4 and chart changes in the magnitude of the magnetic flux f (figure 5) shows that the lack of synchronization of the speeds of rotation of the inductor and the armature may lead to arbitrary change of frequency of rotation of the inductor and armature voltage amplitude, and power fluctuations, EG. In order to design EG with two anchors (figure 1, 2), one of which is movable and rotates in the opposite coil direction, to obtain the same frequency current with a current collector fixed and movable anchors (for example, 50 Hz), it is necessary to fulfill the condition, in which the inductor on the external and internal surfaces of its body to set a different number of magnetic poles of the magnets (permanent magnets):

the number of permanent magnets (electromagnets) on the outer surface of the body of the inductor to establish rela is availa able scientific C with rotation speed (rpm) drive to obtain industrial frequency 50 Hz;

the number of permanent magnets (electromagnets) on the inner surface of the housing of the inductor installed in accordance with the gear ratio of the gearbox, which provides a counter-rotation of the coil and a movable armature, to obtain the same industrial frequency of 50 Hz (optionally, you can receive current from one EG with different frequencies).

In this design EH it turns out that the relief is almost from two independent sources, one of which is fixed anchor on the housing of Aigues (terminal box) and the movable coil with the magnets on the outer surface of its body and the second movable armature and the movable coil with the magnets on the inner surface of its body (the current collector on the shaft of the rolling anchor). To reduce the influence of magnetic fluxes on the characteristics of the EEG select the body material of the inductor to the shielding properties, which have metals with high magnetic permeability.

Suppose that on the outer surface of the body of the inductor has 24 pairs of poles of the electromagnets, then to get from terminal box fixed anchor industrial frequency of 50 Hz, it is necessary to rotate the shaft of the inductor with a speed of 125 rpm And to get the same frequency of 50 Hz with a current collector of a movable armature, which BPA is moved inside the rolling inductor, on the inner surface of the housing of the inductor with a transmission ratio of the gearbox VA/VN=2:1 is sufficient to establish the 8 pairs of poles of the electromagnets at the same drive speed equal to 125 rpm

The Assembly of the EEG (figure 1) as follows. In the slots of the housing 10 AG fixed wire fixed anchor and fix the housing 10 based on 1, then assemble inductor, first on the inner surface of the housing 11 fixed inductor cores 13 of the electromagnet with a coil 12, then fix the magnets on the outer surface of the housing 11 of the inductor. Then fix the wire (dash-dotted line) on the housing 14 of the movable anchor, insert it into the housing 11 of the assembled inductor. Then on the housing 11 of the inductor is fixed cover 6 and install the cover 9 of the housing 10 EH Assembly with bearings 8, which are simultaneously fixed on the shaft 6. Next on the shaft 6 install auxiliary generator 7 and the bevel gear 15, the shaft 3 is movable armature set the current collector 5 and the bevel gear 16, and then install the shaft 3 in 2 hours with bearings 4. The Assembly AG (figure 3) simpler construction, in which the inductor together with the shaft 3 rotates inside the housing 22 of the armature is produced in the same way, fix wire armature winding in the housing 22, installs electr the magnets on the housing 23 of the inductor, insert it into the housing 22 of the anchor, and further, as previously described.

Rotation in opposite directions of the inductor and armature EH (figure 1) is supplied from the drive, installed perpendicular to the shaft 3 anchors, through gears 15, 16 and the idler gear 17, which is installed on the shaft 18 of the drive. The rotation of the inductor and the armature (3) can be supplied from a drive via a coupling link with one of the ends of the shaft 3, the rotation of the inductor and the armature in opposite directions through the intermediate gear 20, which is installed on the rack 2. Drive the EEG can also be connected with the gear fixed on the hollow shaft 6 of the inductor, and through it and other gear to transmit the rotation shaft 3 of the movable armature. The rotation of the inductor and the armature (figure 2) by device (gearbox) 19 with the possibility of automatic control of the relative speeds of rotation of the inductor (VA) and anchors (VN) depending on the number of revolutions of the individual actuator (servo, or similar automatic transmission car).

Thus, the claimed technical solution compared to similar and other, well-known author, technical solutions has benefits which include improving the quality of the output characteristics and power EG, reduction of material consumption EH, is therefore, in reducing the weight, size and cost reduction, the ability to reduce the drive speed while maintaining the same characteristics of the EEG, to improve the operational reliability of the EEG, the expansion of applications of EH.

1. The generator (EG) with counter-rotating inductor and armature mounted in the housing of Aigues, characterized in that split housing AG is set or two anchors, one of which is anchored and the other movable, or one movable anchor made with the possibility of rotation relative to the rolling inductor winding fixed anchors are secured in the slots of the split housing of Aigues, winding rolling anchors secured in the slots of its body, one end of which is fixed to the current collector, and on the other end rigidly fixed gear capable of transmitting the rotation of the coil, on the opposite ends of the shaft which is rigidly fixed to the auxiliary the DC generator and the gear is driven in rotation by a gear connected with the shaft of a movable armature, in this case the inductor is installed with bearings on front covers EH and on the basis of the EEG, on the surfaces of the body of the inductor fixed electromagnets or permanent magnets, magnetic fields which interact with the magnetic fields of the windings anchors, synchronous in Amenia coil and a movable armature in opposite directions by using gear from one drive, during each period (turnover) ratio of the velocities of the counter-rotation of the inductor and armature VA/VN=const, while ensuring the possibility of automatic control of the rotation frequency of the inductor and the armature.

2. EH according to claim 1, characterized in that either the anchor rotates inside and meet the inductor or inductor rotates towards and inside the anchor.

3. EH according to claim 1, characterized in that the counter-rotation of the inductor and the armature is provided with either of the pulleys, or gears.

4. EH according to claim 1, characterized in that the covers of the inductor and the housing of Aigues with holes for ventilation.

5. EH according to claim 1, characterized in that the body of the inductor is made of a material with shielding properties possessed by metals with high magnetic permeability, such as iron alloys with Nickel.

6. EH according to claim 1, characterized in that the rotation of the inductor and the armature is carried out using a servo motor or other device (e.g., type of automatic transmission in a vehicle with automatic speed control.

7. EH according to claim 1, characterized in that the actuator is connected with the gear of the inductor, which through other gear is transmitted to the rotation of the rolling anchor.

8. EH according to claim 1, characterized in that the drive EG installed either perpendicular or p is parallel to the shaft of a movable armature with one of its ends.



 

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12 cl, 5 dwg

FIELD: electricity.

SUBSTANCE: invention refers to peculiar features of the design of non-contact synchronous magnetic-electric machines and can be used in automation systems as traction controlled and non-controlled electric drives, as wind generators, hydraulic generators, high-frequency electric generators, multi-phase synchronous electric motors and electric generators of frequency converters, as well as multi-phase power sources of electric current. The proposed non-contact synchronous magnetoelectric machine with modulated magnetomotive force of armature includes stator the armature core of which consists of insulated electrotechnical steel sheets with high magnetic permeability and has express poles with coil m-phase armature winding, each coil of which is arranged on the appropriate express pole of armature, one per a pole, as well as rotor which contains inductor with express poles with alternating polarity, which are symmetrically distributed along cylindrical surface and excited with constant magnets. At that, certain ratios are fulfilled between the number of express armature poles, number of phases of m-phase armature winding, number of express poles of armature in phase and number of express poles of inductor.

EFFECT: high energy properties, high specific torque moment on the shaft, reducing pulsations of torque moment, vibration and noise of non-contact synchronous magnetoelectric machine owing to its multi-phase design with modulated magnetomotive armature force.

13 cl, 5 dwg

FIELD: electricity.

SUBSTANCE: invention refers to design of synchronous electric machines with slip rings of any powers - from tenth parts of W to hundreds of kW, and can be used in automation systems as traction controlled and non-controlled electric drives, synchronous electric generators, multi-phase power supplies with electric current. The proposed modular synchronous electric machine includes stator the armature core of which consists of isolated electrotechnical steel sheets with high magnetic permeability and has express poles with coil w-phase winding of armature, each coil of which is arranged on the appropriate express pole of armature, one per a pole, and rotor containing charged inductor core made of electrotechnical steel sheets with high magnetic permeability; the above inductor has express poles and coil excitation winding, and each coil of which is arranged on the appropriate express pole of inductor, one per a pole. Electric connection of excitation winding with source of constant (rectified) voltage is performed through sliding contact by means of brush-and-spring assembly with brushes. When direct (rectified) current flows via excitation winding of inductor, alternating polarity of N - S magnetic inductor poles appears in air gap. At that, certain ratios are fulfilled between the number of express armature poles, number of phases of t-phase armature winding, number of express poles in armature module phase, number of modules and number of express poles of inductor. Available brush-and-contact assembly allows feeding the excitation winding of inductor with considerable constant (rectified) current and smoothly controlling the output parameters of synchronous electric machine.

EFFECT: high energy data, high specific torque moment on the shaft in electric motor mode and high specific power in electric generator mode of modular synchronous electric machine, increasing electromagnetic and thermal loads, absence of restrictions regarding the design of the above high-duty electric machines with larger overall dimensions.

6 cl, 5 dwg

FIELD: electricity.

SUBSTANCE: in proposed invention, comprising unit of electric machine generator; converter, which converts generated alternating current into direct current; inverter, which converts direct current into alternating current, equipped with key elements for supply of electric load; control device of inverter, controlling key elements with the help of pulse width signal and generating alternating current of specified frequency, current metre is introduced to measure alternating current supplied at electric load; as well as metre of DC voltage for measurement of DC voltage at the outlet of converter; metre of DC voltage to measure AC voltage at the outlet of inverter; controller of output voltage, and controller of pulse width signal. The second version - method to control inverter generator comprises unit of generator, driven by internal combustion engine and generating alternating current; converter connected to unit of generator and transforming alternating current into direct current; inverter connected to converter and transforming direct current into alternating current, equipped with key elements for supply of electric load; control device of inverter, includes the following steps: measurement of DC supplied to electric load, measurement of DC voltage at the outlet of converter, measurement of AC at the outlet of inverter, control of measured AC voltage at the specified level in compliance with coefficient set on the basis of measured value of DC voltage, when measured value of alternating current exceeds threshold value, and control of pulse width signal in current cycle of control at specified value so that measured value of AC is lower than threshold value.

EFFECT: conversion into AC of specified frequency with the help of pulse width signal generated with application of reference sinusoid signal, having wave form of required output voltage, and bearing signal, providing at the same time for possibility of reliable limitation or weakening of overcurrent.

10 cl, 5 dwg

FIELD: electricity.

SUBSTANCE: super-flywheel energy storage comprises a motor-generator and a super-flywheel enclosed into a tight vacuumised shell. The motor-generator is arranged in the form of a double-disc stator and a disc rotor Y arranged between them with permanent magnets arranged on its surfaces, besides, value of air gap between the upper stator disc and the rotor disc is arranged of smaller diametre compared to value of air gap between the lower disc of stator and rotor disc. The super-flywheel, accumulating energy, is rigidly connected to the rotor disc. As a result of various value of air gaps, the considerable axial electromagnet force is generated, which is directed upwards and fully or partially balances weight of super-flywheel and rotor, thus unloading the device magnetic supports. The super-flywheel energy storage comprises heat exchangers, which exhaust heat released by windings and magnetic conductors of the stator. For emergency braking there is a braking device made of braking electric coils and a braking disc, role of which is performed by the rotor disc.

EFFECT: reduced dimensions and material intensity of the super-flywheel energy storage with simultaneous increase of its operational reliability.

3 cl, 2 dwg

FIELD: electricity.

SUBSTANCE: in proposed electric motor, stators (12) and (13) are arranged with required air gaps in axial direction of rotor (11) so that they are opposed to each other, multiple elements of excitation in the form of excitation windings (15) or permanent magnets (33) are located on rotor (11), and multiple anchor windings (17) and (19) are arranged in stators (12) and (13) around axis. At least one of excitation windings (15) or permanent magnets (33) of rotor and anchor windings (17) and (19) are formed from superconducting material, provided that their magnetic flows are directed in axial direction. At the same time in hollow parts of anchor windings there are flow collectors, arranged in the form of magnetic bodies.

EFFECT: invention provides for high output power and high efficiency of electric motor with axial gap, having small weight and dimensions, at the same time.

11 cl, 7 dwg

FIELD: electricity.

SUBSTANCE: invention relates to the field of electric engineering, in particular, to AC electric drives, and may be used as electromechanical converter for mechanisms, having elastic connection to fixed support. In doubled induction motor, including two rotors with short-circuited windings, fixed stator and movable stator, according to invention, rotors are arranged on different shafts, movable stator is rigidly connected to rotor related to fixed stator, and each of stators is connected to network via individual frequency converter, including metering system and speed controller.

EFFECT: prevention of oscillating loads, and also reduction of electromagnet and mechanical losses at start and in the mode of load overcoming.

1 dwg

FIELD: electricity.

SUBSTANCE: invention is a machine (linear valve induction generator motor) that can equally operate as a generator and as a motor and possesses a number of characteristics allowing optimisation of weight and power ratio as well as production costs. The machine concerned has several air clearances crossed by a single magnetic flux wherein magnetising force is formed. The flux is generated by a series of coils (6) arranged on active parts The active parts are two frames (4) and (5) whereon the magnetic flux is grounded. In the above magnetic circuits other active parts may exist wherethrough the magnetic flux grounding fails to occur. A series of passive elements (habitually represented by transducers (1) and (2)) in the course of their motion relative to the active parts cause change of the circuit magnetic with respect to the position causing magnetic force. The most unique feature of the invention consists in the magnetic flux returning through only two butt-end active parts (4) and (5).

EFFECT: reduction of stray flux at the poles of the proposed generator motor and reduction of its mass, weight and cost.

2 cl, 2 dwg

FIELD: electricity.

SUBSTANCE: invention relates to cascade electric rotary actuator drives and may be used for production of gearless drives with frequency adjusted from 0 to double nominal at stable nominal rotation speed including reversible and other type drives. The proposed controllable cascade electric drive contains two electric motors mounted coaxially on the housing. Each motor is composed of a rotor rigidly mounted on its shaft and a stator. The stator of one of the electric motors is designed as stationary and is mounted on the housing while the second motor stator is capable of free motion relative of the shaft. According to the invention concept, it additionally contains a fixture ring rigidly mounted on the shaft of the stationary stator motor. Mounted on the fixture ring are two e-magnetic clutches one of them capable of contact with the friction plate that has a projection fitting into the movable stator body concavity which is coaxial to the said projection. The other e-magnetic clutch is capable of contact with its friction plate and of connection, with the help of the said plate, to the movable stator electric motor shaft that has a splined recess for the friction plate to fit in. The working areas of the above two friction plates that come in contact with the above e-magnetic clutches are equal to provide for identical performance of the said e-magnetic clutches. Mounted on the drive housing is a third e-magnetic clutch capable of contact with a third friction plate that has a projection fitting into the movable stator body having a concavity which is coaxial to the said projection of the third friction plate.

EFFECT: extension of the range of the cascade electric drive adjustment due to provision for generation of high rotation speeds close to double the nominal one at constant torque value or possibility to generate a doubled torque value at constant rotation speed.

2 cl, 6 dwg

Electrical machine // 2400006

FIELD: electricity.

SUBSTANCE: electrical machine comprises stator with winding, inner rotor with output shaft installed in bearings, intermediate rotor covering inner rotor, on inner surface of intermediate rotor there are windings arranged, shaft of intermediate rotor is arranged as hollow, inside there is inner rotor shaft, besides bearings arranged on shafts of inner and intermediate rotors are arranged coaxially to their axis of rotation. On outer surface of intermediate rotor there are groups of permanent magnets arranged with alternating polarity, and generator winding of stator is multi-phased.

EFFECT: increased efficiency of device operation in wide range of inner rotor output shaft rotation speed change due to controlled redistribution of coaxial rotors rotation speeds, production of permanent output power with control of its rotation speed, and expansion of functional capabilities.

2 dwg

FIELD: electricity.

SUBSTANCE: asynchronous motor with hollow short-circuit rotor includes hollow rotor and external stator with core and winding, as well as additional rotor installed on the shaft in the zone restricted with stator with possibility of rotation irrespective of hollow rotor, made from ring-shaped magnet radially magnetised with the number of pairs of poles, which is equal to the number of pairs of poles of stator winding, on which there pressed is thin-wall sleeve from conducting material, and hollow rotor is made in the form of thin-wall shell from conducting material.

EFFECT: increasing power coefficient and efficiency of asynchronous motor with hollow rotor without deterioration of its dynamic characteristics.

3 cl, 2 dwg

Electrical machine // 2396671

FIELD: electricity.

SUBSTANCE: in electrical machine containing the device for creation of magnetic field and device for conversion of one kind of energy to the other, according to the invention, in device for creation of magnetic field (stator) the slots formed with magnetic conductor, which are through in axial direction, are also through in radial direction, and above external part of open slots which are through in radial direction there installed is external rotor enveloping the external part of stator (magnetic field creation device). Thus, electrical machine has inner rotor with which the main magnetic flow interacts, and outer rotor with which leakage flux interacts.

EFFECT: use of leakage flux in electric motors for creation of torque moment Mt, and in current generators for obtaining electric power, and as a result, increasing operating efficiency of electrical machines.

3 dwg

FIELD: electric engineering.

SUBSTANCE: proposed eccentroid electric machine comprises (dwg. 1-2) body (1) arranged with internal ring in the form of elliptic bearing race (2) from dielectric material, stator made in the form of three inertial elements (3), every of which is assembled from plates of electrotechnical steel, comprises axis (4) of rotation, is arranged in the form of rolls equipped with magnetic belts (5) at the ends, which consist of even number of semirings of various polarity. Axis (4) of rotation of each of inertial elements (3) is connected by two telescopic spring links (6) to dampers (7), installed symmetrically on both sides of rotor system, including propeller blades (8), on driving shaft (9) common for stator and rotor, which is arranged eccentrically relative to geometric axis of eccentroid electric machine. Body (1) is closed with two covers (10) at sides, on which at inner sides there are elliptic angle guide elements (11) installed to form together with elliptic bearing race (2) elliptic closed channel for movement of inertial elements (3) in it. Telescopic spring links are arranged relative to each other at the angle of 120. Rotor system of eccentroid electric machine (dwg. 3-7) consists of two rotors: rotor (12) of free rotation and rotor (13) of forced rotation, rigidly arranged on driving shaft (9). Rotor (12) of free rotation comprises hollow shaft (14) arranged on sliding bearings (15) concentrically relative to both driving shaft and rotor (13) of forced rotation. Inside hollow shaft (14) of ferromagnetic material there is a system arranged from even number of permanent magnets (16) with alternating poles, and outside their rims (17) - magnetic belts (18) made also of even number of permanent magnets. Magnetic belts (5) and (18) of stator and rotor (12) of free rotation are arranged oppositely, and permanent magnets (16) have length comparable to length of rotor (13). Each of dampers (7) comprises hollow cylindrical perforated ring (21), rigidly fixed on driving shaft (9) and divided with internal radial partitions (23), between which compensation springs (24) are installed with thrust. Ends of telescopic spring links (6) arranged in dampers are arranged with hubs (22) rigidly installed on driving shaft (9), are installed in middle part of compensation springs and come out of dampers through holes in their cylindrical rings.

EFFECT: increased efficiency of electric machine operation by provision of ability to generate additional energy used for self-sufficiency of machine operation in rated mode and for supply to loads, and for production of traction used to provide for ability to use electric machine as propeller.

5 cl, 14 dwg

FIELD: electric engineering.

SUBSTANCE: in proposed synchronous electric machine shaft (3) of rotors is driven by external motor, in windings (2) electromotive force is induced from magnetic field of permanent rotor magnets (9). In winding (5) of rotor (4) current is supplied from source (8), which also develops magnetic field. In windings (1) EMF is also induced, which coincides with EMF of winding (2) and is summed up with it. At the outlet of electric machine there is a total EMF. If a short circuit occurs at the outlet, then to limit it, current from source (8) changes direction.

EFFECT: reduction of electric energy consumption.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: submersible river plant with top arrangement of work zone comprises housing with lateral top sides, power take-off mechanism, generator, rotary drums, vanes with floats of top section arranged on continuous moving belt revolved by water flow. Float serves to open vanes in flow and fold them in counter flow. Housing front face has guiding crosswise edge to bring about artificial water flow pressure head. Tight compartment is arranged between drums. Vanes represent elastic fabric pockets with stabilising cutout or rigid rotary vanes. Floats represent revolving floating rollers. Sides are arranged at the height of rollers level. Aforesaid tight compartment serves to support said belt and accommodate power take-off mechanism and generator.

EFFECT: simple and reliable design.

4 dwg

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