JP2019122127A - Operational method of autonomous operation type rotary electric machine, autonomous operation type rotary electric machine, electric automobile motor power source using them, and autonomous operation type power generation device - Google Patents

Abstract

To provide an operational method of an autonomous operation type rotary electric machine, an autonomous operation type rotary electric machine, an electric automobile motor power source using them, and an autonomous operation type power generation device, in which a power generation output is generated during an operation of a rotational machine, the power generation output is amplified and recycled in an exciting coil of the rotational machine, and thus, an output torque can be substantially improved.SOLUTION: A motor stator 105 and a power generation stator 107 are adjacently arranged in an axial direction. By the power generation stator, a main power generation and an auxiliary power generation are output. The auxiliary power generation is converted into a DC power and is accumulated in an accumulation device 20 formed by LiC, and an accumulation power StP is output. The accumulation power is amplified in a high frequency power amplifier 30, and a DC amplification power DaP is generated. Multi-phase driving powers φu, φv, and φw are generated from the DC amplification power by an inverter 34, and are supplied to the motor stator, and thus, can perform an autonomous operation of a motor, and the output of the main power generation can be improved by improving a torque output of the motor.SELECTED DRAWING: Figure 2

Description

Detailed Description of the Invention

  The present invention relates to a rotary electric machine, and more particularly, to a method of operating an autonomously operating rotary electric machine, an autonomously operating rotary electric machine, a motive power source for an electric vehicle using the same, and an autonomously operating power generator.

  In recent years, motor generators and no-load generators have been proposed in which a motor and a generator are connected in series in tandem.

  In Patent Document 1, a motor and a generator are housed in two shell type housings and supported by a common rotation shaft, and the motor and the generator are driven through a rotation shaft driven from an external power source such as an engine. The structure which was made to do is disclosed.

  In Patent Document 2, a motor and a generator are incorporated in a common case, a small permanent magnet generator is disposed outside the common case, and the small permanent magnet generator is driven by the output shaft of the motor. A structure is disclosed in which the stator of the generator is excited with the generated power.

  Patent Document 3 includes a motor and a generator, a battery, and an inverter, and charges a battery with a generated output of the generator, converts DC power from the battery into AC power by the inverter, and drives the motor. Discloses an autonomous power generation system in which the generator is operated.

  In Patent Document 4, first and second annular magnet arrays are formed on first and second tracks separated by a predetermined distance, and a plurality of magnetic inductions are equally spaced circumferentially around the outer periphery of these annular magnet arrays. A plurality of magnetic induction iron cores are supported by winding a coil whose direction of winding is reversed around the coupled magnetic induction iron cores by supporting the iron core, coupling the coupled magnetic induction iron cores to the plurality of magnetic induction iron cores, and And a no-load generator which is made to face the second annular magnet row.

U.S. Pat. No. 3,577,002 U.S. Pat. No. 4,663,536 U.S. Patent Publication No. 2011/00150018 U.S. Patent No. 6208061 (Japanese Patent No. 3679632)

  However, in the motor generator described in Patent Documents 1 and 2 above, the motor is operated by the external power source or the external power source to operate the generator, but infrastructure such as the external power source or the external power source is maintained In no place, the motor could not be driven and consequently the generator could not operate autonomously.

  In the autonomous power generation system described in Patent Document 3 described above, it is usually necessary to use a motor with a large rating because the generator has an extremely large back electromotive force. In this case, it is necessary to use a large capacity battery. As a large capacity battery, it is general to use a lithium (Li) ion battery, but this battery has a disadvantage that the number of charge and discharge is small and the deterioration is fast, which is not practical. Moreover, the power generation capacity of the generator is extremely small compared to the power consumption of the motor, and the generated power that can be taken out from the external terminal is small and not practical.

  In the no-load generator described in Patent Document 4 described above, although an external power source or an external power source and a motor are required, the generator can not be autonomously operated in a place where these infrastructures are not maintained. I could not get the generated power.

  The present invention was made in view of such conventional problems, and does not require an external power source or an infrastructure such as an external power source and a motor, and a method of operating an autonomously operating type rotary electric machine, an autonomously operating type rotary electric machine and It is an object of the present invention to provide a power source for an electric vehicle and an autonomously operating power generation device using the same.

  In order to achieve the above object, according to a first aspect of the present invention, there is provided an operation method of an autonomously operating type rotary electric machine, comprising: a rotary shaft rotatably supported by a cylindrical housing; and a motor fixed within the cylindrical housing A multiphase motor unit including a rotor, a motor rotor supported by the rotation shaft and facing the motor stator via an air gap, and housed in the cylindrical housing adjacent to the motor stator A generator stator, and a polyphase alternating current generator having a permanent magnet rotor supported by the rotating shaft and facing the generator stator through an air gap, the generator stator comprising the periphery of the cylindrical housing The magnetic poles are supported at equal intervals in the direction, and are coupled to the plurality of pairs of generating radial magnetic poles facing the permanent magnet rotor via an air gap, and the plurality of pairs of generating radial poles. A plurality of pairs of iron cores, a main generating coil consisting of a pair of back electromotive force canceling windings respectively wound around the plurality of pairs of iron cores, and an auxiliary power generating coil, and the magnetic flux of the permanent magnet rotor intersects A step of preparing a motor generator for outputting the main power and an auxiliary power, an output terminal for extracting the main power to the outside, a step of converting the auxiliary power into a DC power by a rectifier, the DC The method further comprises the steps of storing electric power in an electric storage device consisting of a Li ion capacitor and outputting the electric storage electric power, and generating an electric multi-phase drive signal from the electric storage electric power and supplying the same to the motor unit.

  An autonomously operating type rotary electric machine according to a second aspect of the present invention comprises a cylindrical housing, a rotary shaft rotatably supported by the cylindrical housing, and a plurality of cylindrical housings supported at equal intervals in the circumferential direction of the cylindrical housing. A polyphase AC motor stator having a pair of fan-shaped radial magnetic poles, a plurality of iron cores coupled to each of the plurality of pairs of fan-shaped radial magnetic poles, and a plurality of motor coils respectively wound on the plurality of iron cores; First and second permanent magnets supported by the rotating shaft so as to face opposite ends of a polyphase AC motor stator via air gaps and having N poles and S poles alternately arranged in the circumferential direction A rotor, a plurality of pairs of radial magnetic poles for power generation supported at equal intervals in the circumferential direction of the cylindrical housing and facing an axial end of the second rotor via an air gap, and the plurality of pairs of power generation La A multiphase AC generator stator having a plurality of pairs of iron cores respectively coupled to the Al magnetic poles, and a main power generation coil and an auxiliary power generation coil each comprising a pair of back electromotive force canceling windings respectively wound on the plurality of pairs of iron cores; A third rotor supported by the rotation shaft and facing the plurality of pairs of radial magnetic poles for power generation via an air gap, wherein the second rotors are alternately arranged at equal intervals in the circumferential direction And S pole permanent magnets, and the third rotors are arranged at equal intervals in the circumferential direction, and have permanent magnets of a polarity different from the polarity of the second rotor in the axial direction, and the second rotor and The magnetic flux of the permanent magnet of the third rotor intersects with the plurality of pairs of generating radial magnetic poles to cause the main power generation coil and the auxiliary power generation coil to output the main power generation power and the auxiliary power generation power, respectively; 2 rotors Serial, characterized in that functions as a common rotor and a polyphase AC motor stator and the multiphase AC power generation stator.

  An autonomous-driving type rotary electric machine for an electric vehicle according to a third aspect of the present invention comprises a cylindrical housing, a rotary shaft rotatably supported by the cylindrical housing, and a flywheel disc supported by the rotary shaft. An annular wall extending axially from an outer peripheral portion of the flywheel disk; a motor stator housed in a first area of the cylindrical housing in radial alignment with the annular wall; A generator stator housed in a second area of the cylindrical housing in radial alignment with the wall, and arranged at equal intervals in a circumferential direction in the second area of the annular wall; A first and a second array of permanent magnets opposed to each other through an air gap at both ends of a polyphase alternating current generator stator, and the motor stator is disposed in the second area of the annular wall portion. A stator pole having a rotor pole arranged so that the annular wall faces the motor stator pole via an air gap, the motor stator, the power generation stator, and the annular wall portion They are characterized in that they are aligned in the radial direction of the cylindrical housing.

  An autonomous-driving type rotary electric machine for an electric vehicle according to a fourth aspect of the present invention comprises a cylindrical housing, a rotary shaft rotatably supported by the cylindrical housing, and a flywheel disk supported by the rotary shaft. An annular wall extending axially from an outer peripheral portion of the flywheel disk; a motor stator housed in a first area of the cylindrical housing in radial alignment with the annular wall; A generator stator housed in a second area of the cylindrical housing in radial alignment with the wall, and arranged at equal intervals in a circumferential direction in the second area of the annular wall; A first and a second array of permanent magnets opposed to each other through an air gap at both ends of a polyphase alternating current generator stator, and the motor stator is disposed in the second area of the annular wall portion. A stator pole having a rotor pole arranged so that the annular wall faces the motor stator pole via an air gap, the motor stator, the power generation stator, and the annular wall portion They are characterized in that they are aligned in the radial direction of the cylindrical housing.

  A power source for an electric vehicle according to a fifth aspect of the present invention includes the autonomously operating type rotary electric machine according to any one of claims 1 to 8.

  An autonomous operation type electric power generating apparatus according to a sixth aspect of the present invention is characterized by comprising the autonomous operation type rotary electric machine according to any one of claims 1 to 7.

  According to the present invention, an autonomous operation type capable of dramatically improving output torque by generating a power generation output during operation of a rotary machine, amplifying the power generation output and circulating it back to the exciting coil of the rotary machine The present invention relates to a method of operating a rotary electric machine, an autonomously operating rotary electric machine, a power source for an electric vehicle using the same, and an autonomously operating power generator.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment)
An autonomously operating type rotary electric machine according to an embodiment of the present invention and a method of operating the same will be described with reference to FIG. The autonomously operating rotary electric machine is applied as a power source for an electric vehicle or an autonomously operating power generator, but other agricultural machines, construction machines, industrial machines such as port machines, various ships, various robots, aircrafts, space return aircraft It also applies to moving objects such as

  In FIG. 1, the autonomous driving type rotary machine 10 will be described as one example applied to a power source of an electric vehicle (EV). The autonomously operating rotary machine 10 includes a motor generator 100 having a three-phase alternating current motor (multi-phase motor unit) 12 and a three-phase alternating-current generator (multi-phase power generation unit) 14. The multiphase motor unit 12 is connected to a load EVw such as a drive wheel via a transmission of an EV and a power transmission unit such as a propeller shaft (not shown) via an output shaft 12a. The multiphase power generation unit 14 outputs the main power generation power MPw via the external terminal OT, and is supplied to a load 15 such as an air conditioner (not shown) of the EV and other accessory electric devices. When the autonomously operating type rotary machine 10 is applied as a motive power supply for a moving object, the load EVw of the motor unit 12 may be removed, and the load 15 may be replaced with a drive motor of the EV.

  The three-phase alternating current generator 14 outputs the three-phase alternating current auxiliary power APw in addition to the three-phase alternating current main power MPw as described later. The three-phase AC auxiliary power APw is rectified by the rectifier 16 to be converted into the DC power DP, and is stored in the storage device 20 via the charger 18. The power storage device 20 is a lithium ion capacitor SLC-B152A, SLC-B110A or JM Energy's MPA45G275H, which has a long life cycle of 1,000,000 cycles or more with high current charge / discharge (500A discharge is possible in a short time). Such lithium (Li) ion capacitor banks are preferably utilized. The DC output StP of the storage device 20 may be supplied to the inverter 34 via the switch SW1 closed in response to a command C0 of the controller 24 described later, and may be converted into a three-phase AC drive signal. On the other hand, the storage device 20 supplies storage power StP to the high frequency AC power generator 22 via the switch SW2 closed in response to the command C1 of the controller 24.

  The high frequency AC power generator 22 converts the storage power StP of the power storage device 20 into high frequency AC power HfP of 10 to 70 kHz, preferably 20 to 50 kHz. If the high frequency AC power HfP is 10 kHz or less, as described later, the change in magnetic flux is too low to decrease the amplification factor, which is not preferable. If 50 kHz or more, the life of the electronic component is reduced. As the high frequency AC power generator 22, for example, a high frequency inverter disclosed in Japanese Patent Nos. 3399214 and 3399215 or Japanese Patent Laid-Open No. 7-231670, and RF power disclosed in Japanese Patent Laid-Open No. 10-745988. Preferably, any of the high frequency alternating current power generators disclosed in US Pat. Nos. 3,368,164 and 5,281,905 and the high frequency alternating current generating inverters disclosed in US Pat. Nos. 4,028,610 and 5,281,905 are preferred. Are mentioned.

  The controller 24 is, for example, a central processing unit (CPU) that executes predetermined arithmetic processing, a read only memory (ROM) that stores a predetermined control program, and a random access memory (RAM) that temporarily stores data. And, for example, an EEPROM (Electrically Erasable and Programmable Read Only Memory). The controller 24 is connected to an input device 26 and a main switch (not shown), and the input device 26 inputs a set frequency of the inverter and other control parameters of various control targets and switch switching signals according to the control parameters. . When the main switch is turned on, in response to the output signal from the input device 26, the controller 24 outputs one of the command signal C1 and the command signal C2 to close one of the switches SW1 and SW2. A zero phase signal S synchronized with the frequency of the high frequency AC power HfP is input to the controller 24.

  In the high frequency pulse generator 28, the switch SW2 is closed and the stored power is supplied from the storage device 20, and at the same time, the synchronization signal Syc synchronized with the zero phase signal S is supplied from the controller 24. The high frequency pulse generator 28 generates a high frequency excitation pulse HfPe of, for example, 10 to 70 kHz, preferably 20 to 50 kHz, in response to the synchronization signal Syc synchronized with the frequency of the high frequency AC power HfP. As the high frequency pulse generator 28, for example, a high frequency pulse generation circuit disclosed in U.S. Pat. No. 8,018,263 or U.S. Pat. No. 8,023,296 may be used. If the high frequency excitation pulse HfPe is 10 kHz or less, the change in magnetic flux decreases and the amplification factor decreases, which is not preferable. If the frequency is 50 kHz or more, the life of the electronic component is reduced. The high frequency pulse generator 28 may be composed of, for example, the above-described high frequency inverter.

  In response to the high frequency excitation pulse HfPe, the high frequency AC power amplifier 30 amplifies the high frequency AC power HfP and outputs the high frequency amplified power HfPa. The high frequency amplified power HfPa is rectified by the high frequency rectifier 32, converted to the DC amplified power DaP, and supplied to the inverter 34. The high frequency rectifier 32 converts rectified wave AC power into DC output power. For example, a high frequency rectifier disclosed in JP-A-2016-72755 or JP-A-2017-112784 may be preferably used.

  In response to command signal C2 from controller 24, inverter 34 generates three-phase AC drive signals φU, φV, φW of a set frequency from stored electric power StP or DC amplified electric power DaP as drive electric power. The phase alternating current motor 12 is supplied.

  When the main switch (not shown) is turned on in the operation of the autonomously operating rotary machine 10, the switch SW is closed in response to the command signal C1 from the controller 24. At this time, the storage power StP of the storage device 20 is supplied to the high frequency AC power generator 22. The high frequency AC power generator 22 converts the stored power StP into, for example, 50 kHz high frequency AC power HfP and supplies it to the high frequency AC power amplifier 30. On the other hand, the stored power StP is supplied to the high frequency pulse generator 28. The high frequency pulse generator 28 responds to the synchronization signal Syc from the controller 24 to convert it into a 50 kHz high frequency excitation pulse HfPe synchronized with the high frequency AC power HfP. The high frequency AC power amplifier 30 amplifies the high frequency AC power HfP in response to the high frequency excitation pulse HfPe to generate the high frequency amplified power HfPa. The high frequency amplified power HfPa is converted into a DC amplified power DaP by the high frequency rectifier 32 and supplied to the inverter 34. In response to the command signal C2ni from the controller 24, the inverter 34 generates three-phase AC drive signals φU, φV, φW described later and supplies them to the motor unit 12. At this time, the motor unit (three-phase alternating current motor) 12 generates a rotating magnetic field according to the three-phase alternating current drive signal and rotationally drives it, and drives the load EVw via the output shaft 12a by its power. Simultaneously with the operation of the motor unit 12, the power generation unit (three-phase alternating current generator) 14 is activated to output the three-phase alternating current main power MPw and the three-phase alternating current auxiliary power APw, and the three-phase alternating current main power MPw is supplied to the load 15. And supplied to the three-phase AC auxiliary power APw rectifier 16. This cycle is repeated and the above-described steps are performed.

  For example, when multiplying by voltage, current and power factor of the motor unit 12, it is known exactly what percentage of the load EVw is with respect to the maximum load 100%, the voltages from various sensors (not shown), If current and power factor control parameters are input to the input device 26, the controller 24 responds to the control signal from the input device 26 when the load factor of the load EVw is, for example, 50% or less. To close the switch SW 1 and supply the storage power of the storage device 20 to the inverter 34. On the other hand, when the load factor of the load EVw becomes, for example, 50% or more, the controller 24 switches the command signal C0 to the command signal C1 and closes the switch SW2. At this time, the high frequency AC power generator 22, the high frequency pulse generator 28 and the high frequency AC power amplifier 30 operate to supply the DC amplified power DaP to the inverter 34. Thus, the DC power to the inverter 34 can be freely selected according to the load of the motor unit 12.

  In FIG. 2 and FIG. 3, the motor generator 100 is rotatably supported by the cylindrical housing 102 having the central axis CL and the end 102a, and the cylindrical housing 102, from one side of the end along the central axis CL. The motor generator 100 includes a rotating shaft 12 a and a motor generator 100 housed in a cylindrical housing 102. The motor generator 100 includes a motor unit 12 and a power generation unit 14 coupled concentrically.

  As apparent from FIGS. 2 and 3, the motor unit 12 and the power generation unit 14 respectively include a motor stator 105 and a power generation stator 107. The motor stator 105 is provided with a plurality of pairs of fan-shaped radial magnetic poles 106U, 106V, 106W supported at equal intervals in the circumferential direction of the cylindrical housing 102, and a central axis CL in each of the plurality of pairs of fan-shaped radial magnetic poles 106U, 106V, 106W. It comprises a plurality of electromagnets consisting of iron cores 103 extending in parallel and motor coils 108 wound around each of the iron cores 103.

  The electromagnets 106U, 106V, 106W have a pair of magnet holder portions 116a, 116b (see FIG. 3) extending inward in the radial direction and parallel to the axis CL, and have a permanent magnet 118a having an S pole and an N pole; It holds a permanent magnet 118b having a polarity opposite to that of 118a, an N pole and an S pole. For example, as shown in FIG. 2, when the electromagnet 106U is excited to become an S pole and an N pole along the axial center CL, the magnetic flux of the S pole of the permanent magnet 118a is the magnetic flux of the S pole of the electromagnet 106U. While the magnetic flux of the N pole of permanent magnet 118b is added to the magnetic flux of the N pole of electromagnet 106U to maximize the total flux of electromagnet 106U. As a result, the magnetic attraction force to the permanent magnet 114 of the rotors 112 and 112A can be increased to improve the torque.

  A rotor including first and second flywheels 112 and 112A is fixedly supported on the rotation shaft 12a so as to face the pole faces 110 at both axial ends of the plurality of fan-shaped radial magnetic poles 106U, 106V and 106W. It is rotatably supported by the housing 102. As apparent from FIG. 3, each of the first and second rotors (flywheels) 112 and 112A has a plurality of permanent magnets 114 and 114a in which N poles and S poles are alternately arranged at equal intervals in the circumferential direction. . In FIG. 2 and FIG. 3, when the N pole of the permanent magnet 114 of the first rotor 112 is axially aligned with the sector radial magnetic pole 106U, the S pole of the permanent magnet 114 of the second rotor 112A is the sector radial pole 106U. Aligned in the axial direction. The centers of the plurality of permanent magnets 114. 114 a are arranged in axial alignment with the iron core 103 of the plurality of pairs of fan-shaped radial magnetic poles 106 U, 106 V, 106 W.

  FIG. 4 shows the connection between the inverter 30 and the electromagnets 106U, 106V, 106W. As shown in FIG. 3, a pair of electromagnets 106U are symmetrically arranged at a position of 180 degrees in the axial center CL direction, and among these electromagnets 106U, 106V, 106W, four fan-shaped radial magnetic poles are simultaneously 2 Magnetically attracted by the two rotors 112, 112A. Therefore, the rotating shaft 12a rotates with a strong torque.

  As shown in FIG. 5, the three-phase AC drive signals .phi.U, .phi.V, .phi.W change at the timing as described. The three-phase AC drive signal φU has a positive potential between timings t1 to t3 and t7 to t9, and a negative potential between timings t4 and t6. At timings t3 to t4, t6 to t7, and t9 to t10, the circuit is in the OFF state. In the three-phase drive signal φV, the timing is delayed between timings t1 and t2 from the three-phase AC drive signal φU. Similarly, the three-phase AC drive signal φW is delayed in timing from the three-phase AC drive signal φU to timings t1 to t3. In this manner, the three-phase AC drive signals φU, φV, φW conduct (excite) each other with a predetermined time width to excite each radial magnetic pole to attract the permanent magnets of the rotor while exciting the rotary shaft 12a. It is rotating smoothly.

  FIG. 6 shows a specific structure of the high frequency AC power amplifier 30. The high frequency AC power amplifier 30 includes a stator 200 having a concentric outer peripheral portion 200a and an inner peripheral portion 200b. The stator 200 is provided with a plurality of pairs of radial magnetic poles 202 extending in the radial direction at equal intervals in the circumferential direction between the outer circumferential portion 200 a and the inner circumferential portion 200 b. A radially extending excitation circuit Ec is formed between the adjacent radial magnetic poles 202 in the plurality of pairs of radial magnetic poles 202, the excitation circuit EC includes an excitation magnetic pole 204, and an excitation coil 206 is wound around each of the excitation magnetic poles 204. ing. A pair of magnetic circuits 208 are formed between the excitation circuit Ec and the adjacent radial magnetic poles 202, respectively. At a position adjacent to the inner circumferential portion 200b, a common permanent magnet 210 having a Halbach array structure is disposed in the vicinity of the inner end of the excitation circuit Ec. The Halbach permanent magnet 210 is located at the center, and the central permanent magnet has an N pole and an S pole extending in the same direction as the excitation magnetic pole 204, and the N pole and the S pole are orthogonal to the central permanent magnet. And side permanent magnets. Thus, the permanent magnet 210 of the Halbach array structure is disposed such that the magnetic flux on the N pole side is directed to the excitation circuit Ec.

  The stator 200 has a high frequency power input terminal 210 and an amplified power output terminal 212, and the high frequency power input terminal 210 is connected to the common line 214 and the coil line 216 respectively. A plurality of inductors 218 are connected in series to the coil line 216, and the plurality of inductors 218 are respectively wound around the radial magnetic pole 202. A plurality of capacitors 220 are respectively connected between the plurality of inductors 218 and the common line 214. The plurality of inductors 218 and the plurality of capacitors 220 form an LC resonant circuit, and the LC resonant circuits are connected in series between the common line 214 and the coil line 216. A damping resistor DR1 is connected in parallel with the LC resonant circuit including the capacitor 220A, and a damping resistor DR2 is connected and connected in parallel with the LC resonant circuit including the capacitor 220B. These damping resistors DR1 and DR2 attenuate noise by suppressing resonance sharpness (Q) of the LC resonant circuit, and improve the bandwidth, transient characteristics, phase characteristics, etc. of the circuit.

  The exciting coil 206 is simultaneously supplied with the high frequency excitation pulse HfPe from the high frequency pulse generator 28 (see FIG. 1) in synchronization with the high frequency AC power HfP. The permanent magnet 210 of the Halbach array structure has the same magnetic pole as the magnetic pole when the exciting coil 206 is excited. When the exciting coil 206 is excited in response to the high frequency excitation pulse HfPe, the radially outer side of the exciting circuit Ec becomes an N pole and the radially inner side of the plurality of inductors 218 becomes an N pole. A concentrated magnetic flux 210 a flows from the N pole side of the permanent magnet 210 to the excitation circuit Ec. The concentrated magnetic flux 210 a and the magnetic flux generated by the exciting coil 206 circulate in the magnetic circuit 208 as a synthetic magnetic flux. As a result, the combined magnetic flux passing through the inductor 218 increases, and the current flowing through the inductor 218 increases. Thus, when the exciting coil 206 is excited in response to the high frequency excitation pulse HfPe, the high frequency magnetic field of the permanent magnet 210 flows in the magnetic circuit 208, and the combined high frequency magnetic field φe passes through the magnetic circuit 208. Thus, in the magnetic circuit 208, a composite high frequency magnetic field of the high frequency magnetic field of the exciting coil 206 and the magnetic field of the permanent magnet 210 flows. Thus, the exciting coil 206 functions as a high frequency magnetic field generator.

  In the operation of the high frequency AC power amplifier 30 of FIG. 6, a high frequency excitation pulse HfPe is simultaneously supplied from the high frequency pulse generator 28 (see FIG. 1) to the excitation coil 206 at, for example, a 50 kHz frequency synchronized with the high frequency AC power HfP. Multiple pairs of magnetic circuits 208 are simultaneously formed at a frequency of 50 kHz. In this state, high frequency AC power Hfp is supplied to the high frequency power input terminal 211 from the high frequency AC power generator 20 (see FIG. 1) at a frequency of 50 kHz, for example, and the high frequency AC power HfP is connected to a plurality of LC resonances connected in series. It is amplified while passing through the circuit. At this time, the exciting coil 206 responds to the high frequency excitation pulse FfPe to cause the multiple magnetic circuits 208 to generate high frequency magnetic fields, so that the composite energy passes through the inductor 218 by the magnetic energy φe passing through the multiple magnetic circuits 208. As the magnetic flux increases, the magnetic flux density across the inductor 218 increases and the current through the inductor 218 increases. The high frequency amplified power HfPa thus obtained is rectified by the high frequency rectifier 32 and supplied to the inverter 34. The high frequency rectifier 32 converts the high frequency amplified power HfPa into a direct current output power. For example, a high frequency rectifier disclosed in Japanese Patent Application Laid-Open No. 2016-72755 or Japanese Patent Application Laid-Open No. 2017-112784 is preferably used.

  As is apparent from FIGS. 2, 7, and 8, the multiphase power generation unit 14 is coupled to each of the plurality of pairs of fan-shaped radial magnetic poles 312U, 312V, and 312W and the plurality of pairs of radial magnetic poles 312U, 312V, and 312W. Power generation having a pair of iron cores 306 and a power generation coil 308 comprising a main power generation coil 308a1 and an auxiliary power generation coil 308a2 constituting a pair of back electromotive force canceling windings 308 wound in opposite directions around the pair of iron cores 306 respectively A stator 107 is provided. The second rotor 112A and the third rotor 112B are supported by the rotation shaft 12a so as to be close to and opposed to each other at both axial ends of the plurality of fan-shaped radial magnetic poles 312U, 312V, 312W. Since the permanent magnets 114 and 114a of the second rotor 112A cooperate with both the motor unit 12 and the power generation unit 14, they can be said to be common rotors.

  As shown in FIG. 8, the generator coil 308 includes a first winding 308a and a second winding 308b, and the first winding 308a and the second winding 308b are wound in opposite directions to each other. The counter electromotive forces generated in the windings cancel each other. This is to offset the back electromotive force flowing through the generating coil 308 when the radial magnetic poles 312 and 314 face the adjacent permanent magnets 114A and 114A. That is, when an electromotive force ef1 is generated in the power generation coil 308, a counter electromotive force ef2 is generated, and the electromotive force and the counter electromotive force cancel each other. Thus, when the permanent magnets 114 and 114A pass through the radial magnetic pole 312U in the circumferential direction, the electromotive force and the back electromotive force due to the magnetic flux of the permanent magnets 114 and 114A are offset. As a result, while the power generation coil 308 is generating electricity, the rotors 112A and 112B rotate and move smoothly in a no-load state. The first winding 308a has a main generating coil 308a1 and an auxiliary generating coil 308a2. Similarly, the second winding 308 b has a main generating coil 308 b 1 and an auxiliary generating coil 308 b 2. The main generation coils 308a1 and 308b1 are connected to the load 15, and the auxiliary generation coils 308a2 and 308b2 are connected to the rectifier 16 (see FIG. 1).

  9 and 10 show a modification of the motor generator 100 shown in FIGS. 2 and 3. The same or similar parts as or to those of the motor generator 100 in FIG. 2, FIG. 3, FIG. 7 and FIG. This will be described using The motor generator 100 has a cylindrical structure, whereas the motor generator 100A has a flat structure.

  In the modification shown in FIGS. 9 and 10, the autonomously operating type rotary electric machine 100A accommodates the flat cylindrical housing 102A, the end plate 102a, the high frequency power amplifier 30, and the related electronic parts (see FIG. 1). And a cover member 400. The rotary shaft 12a is rotatably supported by the cylindrical housing 102A, and the motor rotor 112C is supported by the rotary shaft 12a. The motor rotor 112C has a radially extending flywheel disc 402, and an annular wall 402a extends axially from the outer periphery of the flywheel disc 402.

  The polyphase AC motor stator 105A is accommodated in the first area A1 of the cylindrical housing 102A so as to be aligned with the annular wall 402a in the radial direction. On the other hand, the multi-phase alternating current generator stator 107A is accommodated in the second area A2 of the cylindrical housing 102A so as to be radially aligned with the annular wall portion 402a. As is apparent from FIGS. 9 to 11, in the second area A1, a plurality of pairs of rotor poles 410 formed at predetermined angles at equal intervals are formed at the radially inner side of the annular wall portion 402a. A plurality of pairs of stator poles 412 formed at a predetermined angle are formed radially inward of the rotor poles 410 of FIG. A series winding 414 is wound on each pair of stator poles 412. The plurality of pairs of stator poles 412 are formed equiangularly in the circumferential direction to constitute a polyphase AC motor stator 105A of a three-phase structure. For example, various known switched reluctance motors may be adopted as the polyphase AC motor stator 105A. For example, an outer rotor type motor shown in U.S. Pat. No. 4,883,999 as an example is also included.

  In the second area A2, the first array of permanent magnets 404 is disposed on the outer periphery of the annular wall portion 402a so that N poles and S poles alternate in the circumferential direction. The second array of permanent magnets 406 is arranged to be opposite in polarity to the polarity of the first array of permanent magnets 404, that is, to alternate between south and north poles. As apparent from FIG. 9, the inner end 312a of the fan-shaped radial magnetic pole 312U faces the permanent magnet 404 via the air gap. On the other hand, the inner end 312b of the fan-shaped radial magnetic pole 312U faces the permanent magnet 406 via an air gap. Similarly, the inner ends of the other fan-shaped radial magnetic poles 312V and 312W face the permanent magnets 404 and 406 via an air gap.

  In the autonomously operating type rotary electric machine 100A shown in FIGS. 9 and 10, when the three-phase AC drive signals φU, φV, φW of FIG. 5 are supplied to the winding 412 of the motor stator 105A, the rotor poles of the motor rotor 112C. Magnetic attraction 410 is sequentially attracted to rotate the motor rotor 112C. At this time, the permanent magnet 404 of the motor rotor 112C rotates, and the magnetic flux crosses the back electromotive force cancellation winding 308 of the radial magnetic pole 312 to generate power. At this time, the main power generation power and the auxiliary power generation are respectively generated in the main power generation coil 308b1 and the auxiliary power generation coil 308b2. The mechanism for canceling the electromotive force and the back electromotive force in the back electromotive force canceling winding 308 is the same as that in the autonomously operating type rotary electric machine 100.

  As mentioned above, although the Example of this invention was described, this invention is not limited to the structure shown by these Examples, A various change is possible, without remove | deviating from the meaning of invention. Although the motor unit of the motor generator has been described as an electromagnet type motor in the above embodiment, a switched reluctance motor may be employed. In the autonomous operation type rotary electric machine of the modification, the polyphase AC power generation unit is described as being disposed radially outward of the polyphase AC motor unit, but the polyphase AC motor unit is disposed radially outward, You may arrange | position to the radial inside of a polyphase alternating current power generation part.

FIG. 1 is a block diagram of an autonomously operating rotary electric machine according to an embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of the motor generator shown in FIG. FIG. 3 is a cross-sectional view taken along line III-III of FIG. FIG. 4 is a wiring diagram of the polyphase AC motor shown in FIG. FIG. 5 is a three-phase drive waveform diagram output from the inverter to the multiphase AC motor. FIG. 6 is a specific structural diagram of the high frequency AC power amplifier shown in FIG. FIG. 7 is a cross-sectional view taken along line VII-VII of FIG. FIG. 8 is a diagram showing the relationship between the radial magnetic poles, the pair of iron cores, and the back electromotive force cancellation winding in the multiphase alternating current generator stator shown in FIG. FIG. 9 is a view showing a modified example of the motor generator of FIG. FIG. 10 is a partial cross-sectional view as seen from line X-X in FIG.

DESCRIPTION OF SYMBOLS 10 ... Autonomous operation type rotary electric machine 12 ... Motor part 12a ... Rotation shaft 14 ... Power generation part 16 ... Rectifier 18 ... Charger 20 ... Storage device 22 ... High frequency alternating current power generator 24 ... Controller 26 ... Input device 28 ... High frequency pulse generation 30: High frequency AC power amplifier 34: Inverter 105: Motor stator 107: Power generation stator 112, 112A, 112AA: Rotor 114: Permanent magnet 200: Outer stator 202: Inner stator 204: Radial magnetic pole 206: Radial inner magnetic pole 218: Inductor 220 ... capacitor 222, 224 ... exciting coil DR1, DR2 ... damping resistance

Claims (10)

It is a process of preparing a multiphase motor unit having a rotating shaft and a multiphase alternating current generating unit drivingly connected to the rotating shaft, wherein the power generating stators of the multiphase alternating current generating unit are supported at equal intervals in the circumferential direction A plurality of generated radial magnetic poles, a plurality of iron cores respectively coupled to the plurality of radial magnetic poles, and a main generating coil including a pair of back electromotive force canceling windings respectively wound around the plurality of iron cores; An auxiliary power generation coil, and a permanent magnet rotor having permanent magnets of first and second arrays facing each of the plurality of radial magnetic poles for power generation via an air gap, and the magnetic flux of the permanent magnet rotor Preparing the multiphase AC power generation unit that causes the main power generation coil and the auxiliary power generation coil to output the main power generation power and the auxiliary power generation power, respectively, when the power generation radial magnetic poles cross each other in sequence;
An output terminal for taking out the main generated power to the outside;
Converting the auxiliary power into DC power with a rectifier;
Storing the DC power in a storage device comprising a Li ion capacitor and outputting the stored power;
And d) generating a multiphase drive signal from the stored electric power and supplying the generated signal to the motor unit. And a step of preparing an amplification stator having a high frequency power input terminal and an amplification power output terminal and having a plurality of pairs of magnetic circuits formed at predetermined intervals in the circumferential direction;
Connecting a coil line and a common line between the high frequency power input terminal and the amplified power output terminal;
Connecting a plurality of pairs of inductors in series to the coil line, and arranging the plurality of pairs of inductors on the amplification stator so as to surround the plurality of pairs of magnetic circuits,
Connecting a plurality of capacitors between the common line and the plurality of pairs of inductors,
Generating high frequency AC power from the stored power;
Supplying the high frequency AC power to the high frequency power input terminal;
The plurality of inductors are stored by applying a high frequency magnetic field in the same direction as the direction of the magnetic flux generated by the plurality of inductors in synchronization with the high frequency AC power to increase the density of the magnetic flux passing through the plurality of inductors. Amplifying energy to generate high frequency amplified power between the coil line and the common line;
Outputting the high frequency amplified power from the amplified power output terminal connected to the coil line and the common line;
Rectifying the high frequency amplified power to generate a DC amplified power;
Generating the drive signal from the DC amplified power;
A method of operating an autonomously operating type rotary electric machine according to claim 1, comprising: A rotary shaft rotatably supported by a cylindrical housing, a motor stator accommodated in the cylindrical housing, and a first member supported by the rotary shaft and facing the motor stator via an air gap, A polyphase AC motor unit having a second motor rotor, a power generation stator housed in the cylindrical housing adjacent to the motor stator, supported by the rotation shaft, and an air gap in the power generation stator And a multi-phase alternating current power generation unit having a permanent magnet rotor facing each other, the power generation stator being supported at equal intervals in the circumferential direction of the cylindrical housing, the second motor rotor and the permanent magnet rotor A plurality of pairs of generating radial magnetic poles facing each other through an air gap, a plurality of pairs of iron cores respectively coupled to the plurality of pairs of generating radial magnetic poles, and a plurality of pairs of iron cores A motor generator having a main generating coil and an auxiliary generating coil consisting of a pair of counter electromotive force canceling windings and outputting the main generating power and the auxiliary generating power when the magnetic flux of the permanent magnet rotor intersects When,
An output terminal for taking out the main AC generated power to the outside;
A rectifier for converting the auxiliary AC power into DC power;
A storage device for storing the DC power in a storage device comprising a Li ion capacitor and outputting the stored power;
An autonomously operating type rotary electric machine comprising: an inverter for generating a multi-phase alternating current drive signal from the stored electric power and supplying the same to the motor unit. The motor rotor comprises a flywheel disc, an annular wall extending axially from the outer periphery of the flywheel disc, and a rotor pole disposed in a first area of the annular wall;
Said permanent magnet rotor comprising first and second arrays of permanent magnets axially spaced apart in a second area of said annular wall;
The motor stator is disposed radially inward of the rotor pole, and the motor stator, the power generation stator, and the annular wall portion are aligned in the radial direction of the cylindrical housing. The autonomous driving type rotary electric machine according to claim 3. The motor stator comprises a plurality of pairs of fan-shaped radial magnetic poles supported at equal intervals in the circumferential direction of the cylindrical housing, a plurality of iron cores coupled to each of the pairs of fan-shaped radial magnetic poles, and the plurality of iron cores And a plurality of motor coils wound respectively
The autonomously operating type rotary electric machine according to claim 3 or 4, wherein each pair of the plurality of fan-shaped radial magnetic poles has a pair of permanent magnets different in polarity. A high frequency power amplifier connected between the storage device and the inverter;
The high frequency power amplification device is
A high frequency power input terminal and an amplified power output terminal are provided, and are formed adjacent to a plurality of pairs of magnetic circuits formed at predetermined intervals in the circumferential direction and the plurality of pairs of magnetic circuits, and the plurality of pairs of magnetic circuits A stator having a plurality of excitation circuits forming a common magnetic path with the circuit;
A coil line and a common line connected between the high frequency power input terminal and the amplified power output terminal;
A plurality of pairs of inductors connected in series to the coil line and arranged so as to surround the plurality of magnetic circuits;
A plurality of capacitors respectively connected between the common line and the plurality of pairs of inductors;
A high frequency AC power generator that converts the auxiliary AC power into a high frequency AC power of a predetermined frequency and supplies the high frequency power to the high frequency power input terminal;
The high frequency magnetic field is periodically generated in the plurality of excitation circuits in synchronization with the high frequency alternating current power, and the high frequency magnetic field is intersected with the plurality of inductors via the plurality of magnetic circuit pairs. A high frequency magnetic field generator that generates high frequency amplified power between the coil line and the common line by increasing the current of the inductor;
The autonomously operating type rotary electric machine according to any one of claims 3 to 5, wherein the high frequency amplified power is rectified and supplied to the inverter. A cylindrical housing,
A rotary shaft rotatably supported by the cylindrical housing;
A plurality of pairs of fan-shaped radial magnetic poles supported at equal intervals in the circumferential direction of the cylindrical housing, a plurality of iron cores coupled to the plurality of pairs of fan-shaped radial magnetic poles, and a plurality of coils wound around the plurality of iron cores Polyphase AC motor stator, having a motor coil of
The first and second permanent magnets are supported by the rotating shaft so as to face both ends of the polyphase AC motor stator via air gaps, and have permanent magnets in which N poles and S poles are alternately arranged in the circumferential direction. 2 rotors,
A plurality of pairs of radial magnetic poles for power generation supported at equal intervals in the circumferential direction of the cylindrical housing and facing an axial end of the second rotor via an air gap; and a plurality of radial magnetic poles for power generation A multiphase alternating current generator stator having a plurality of pairs of iron cores coupled to each other, and a main power generation coil and an auxiliary power generation coil each comprising a pair of back electromotive force canceling windings respectively wound on the plurality of pairs of iron cores;
A third rotor supported by the rotating shaft and facing the plurality of pairs of generating radial magnetic poles via an air gap;
The second rotor has permanent magnets of N poles and S poles alternately arranged at equal intervals in the circumferential direction, and the third rotor is equally spaced in the circumferential direction, and the second rotor in the axial direction Have a permanent magnet with a polarity different from that of
The magnetic flux of the permanent magnets of the second rotor and the third rotor intersects with the plurality of pairs of generating radial magnetic poles, and the main generated power and the auxiliary generated power are respectively transmitted to the main generating coil and the auxiliary generating coil. Output
An autonomously operating type rotary electric machine characterized in that the second rotor functions as a common rotor of the polyphase AC motor stator and the polyphase AC power generation stator. A cylindrical housing,
A rotary shaft rotatably supported by the cylindrical housing;
A flywheel disc supported by the rotating shaft,
An annular wall extending axially from the outer periphery of the flywheel disc;
A motor stator housed in a first area of the cylindrical housing in radial alignment with the annular wall;
A power generation stator housed in the second area of the cylindrical housing in radial alignment with the annular wall;
First and second permanent magnets arranged at equal intervals in the circumferential direction in the second area of the annular wall and facing both ends of the multiphase AC power generation stator via air gaps. ,
The motor stator comprises a motor stator pole disposed in the second area of the annular wall;
And a rotor pole disposed such that the annular wall faces the motor stator pole via an air gap,
An autonomously operating type rotary electric machine characterized in that the motor stator, the power generation stator, and the annular wall portion are aligned in the radial direction of the cylindrical housing.   A power source for an electric vehicle comprising the autonomously operating type rotary electric machine according to any one of claims 3 to 8.   An autonomous operation type power generator comprising an autonomous operation type rotary electric machine according to any one of claims 3 to 7.

Images