JP6375967B2 - Rotating electric machine - Google Patents

Rotating electric machine Download PDF

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JP6375967B2
JP6375967B2 JP2015012181A JP2015012181A JP6375967B2 JP 6375967 B2 JP6375967 B2 JP 6375967B2 JP 2015012181 A JP2015012181 A JP 2015012181A JP 2015012181 A JP2015012181 A JP 2015012181A JP 6375967 B2 JP6375967 B2 JP 6375967B2
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rotor
stator
coil
driving
induction
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JP2016140132A (en
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真大 青山
真大 青山
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スズキ株式会社
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K16/00Machines with more than one rotor or stator
    • H02K16/02Machines with one stator and two or more rotors

Description

  The present invention relates to a secondary excitation induction machine type rotating electrical machine.

  The rotating electric machine is mounted as a power source in various devices. For example, in the case of a vehicle, the rotating electric machine is mounted alone and functions as a power source of an electric vehicle, or mounted together with an internal combustion engine as a power source of a hybrid vehicle. Function.

As a rotating electrical machine, an AC current is supplied to a winding coil on the stator side to generate a rotating magnetic field, and an induction current is generated by electromagnetic induction in the winding coil on the rotor side. An induction machine that generates torque is known.
In this type of induction machine, various devices such as a secondary excitation induction machine for supplying energy to the winding coil on the rotor side from the outside have been made.

  This secondary excitation induction machine requires an AC current to be input to the winding coil via a slip ring located on one end of the rotor shaft, and since the slip ring wears out, it requires maintenance and is robust. There was a problem of lack of sex.

  In order to solve this problem, Patent Document 1 discloses that a main motor structure and a sub motor structure are connected so as to rotate coaxially, and an alternating current is generated in the sub motor structure to generate a main motor structure (winding coil). The technology to supply is described.

JP2011-55569A

  However, in the rotating electrical machine (secondary excitation induction machine) described in Patent Document 1, it is possible to improve the robustness by eliminating the slip ring, but there are two sets of main and sub motor structures. It is necessary to install a separate power supply for each of the above.

  In the motor structure described in Patent Document 1, two inverters are necessary even if the battery is shared, and the problem that the cost is increased and the size is increased is not solved.

  Accordingly, an object of the present invention is to provide a low-cost and small-sized secondary excitation induction machine type rotating electrical machine by realizing a motor structure that can use secondary excitation with a single power source.

  One aspect of the invention of a rotating electrical machine that solves the above-described problems is a first stator having a driving stator coil that generates magnetic flux by supplying an alternating current, and a stator generated in the driving stator coil of the first stator. A first rotor that has a driving rotor coil that interlinks the magnetic flux on the side and rotates by torque generated between the magnetic flux on the rotor side and the magnetic flux on the stator side that is generated in the driving rotor coil. A rotating electrical machine comprising: a DC excitation stator coil that is supplied with a direct current obtained by converting an alternating current supplied to the driving stator coil of the first stator and generates a magnetic flux by the supply of the direct current. AC current is induced using the magnetic field generated in the DC stator coil of the second stator and the second stator. A second rotor having an alternating current induction rotor coil, and supplying an alternating current generated in the alternating current induction rotor coil of the second rotor to the driving rotor coil of the first rotor. is there.

  As described above, according to one aspect of the present invention, the torque is generated by electromagnetic induction between the first rotor and the driving rotor coil only by supplying an alternating current from the power source to the first stator driving stator coil. And generating a magnetic field by supplying a direct current to the direct current excitation stator coil of the second stator, thereby generating an alternating current by the alternating current induction rotor coil of the second rotor to drive the first rotor. Can be supplied to the rotor coil.

  Therefore, secondary excitation induction can be used by supplying alternating current from one power source, and a secondary excitation induction machine type rotating electrical machine that can be reduced in size and reduced in cost can be provided.

FIG. 1 is a view showing a rotating electrical machine according to an embodiment of the present invention, and is a perspective view showing an appearance thereof. FIG. 2 is a perspective view showing the appearance of the stator. FIG. 3 is a perspective view showing the outer appearance of the inner rotor. FIG. 4 is a conceptual connection diagram illustrating the connection between the inner rotor and the outer rotor. FIG. 5 is a circuit diagram showing a power supply circuit.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. 1-5 is a figure which shows the rotary electric machine which concerns on one Embodiment of this invention.

  In FIG. 1, a rotating electrical machine (secondary excitation induction machine) M accommodates a stator (first stator) 100 formed in a substantially cylindrical shape and the stator 100 positioned on the inner peripheral surface side. An outer rotor (first rotor) 200 formed in a substantially cylindrical shape that rotates relatively, and an inner rotor (first rotor) that is accommodated so as to be positioned on the inner peripheral surface side of the stator 100 and that rotates relatively. 2 rotor) 300.

  As will be described later, the rotating electrical machine M is supplied with a three-phase alternating current as a drive current to the stator 100 to generate electromagnetic induction (primary excitation) with the outer rotor 200 to rotate the outer rotor 200. Torque to be generated is generated. Furthermore, in the rotating electrical machine M, electromagnetic induction (secondary excitation induction) is generated between the inner rotor 300 using the AC current supplied to the stator 100, and three-phase AC generated separately by the secondary excitation induction. A current is supplied to the outer rotor 200 as a drive current.

  That is, the rotating electrical machine M is constructed to have a structure capable of generating torque for rotating the outer rotor 200 by generating secondary excitation induction only by supplying the stator 100 with a three-phase alternating current as a driving current from an external power source. Has been. As a result, the rotating electrical machine M does not require a slip ring or a plurality of inverters, in other words, it does not need to input energy from the external power source to the rotor side, and is excellent in robustness and can be downsized. For example, it has a performance suitable for mounting in a hybrid vehicle or an electric vehicle.

  In the rotating electrical machine M, although not shown in the drawing, a shaft serving as a rotational drive shaft that coincides with the shaft center of the stator 100, the outer rotor 200, and the inner rotor 300 is integrated with the outer rotor 200 and the inner rotor 300. And fixed (arranged) so as to rotate coaxially (hereinafter also referred to as “integral rotation”). For example, the stator 100 is fixed at one end in the axial direction to the main body housing side of a vehicle or the like to be installed. On the other hand, the inner rotor 300 is rotatably supported on the main body housing side via bearings that are disposed on both axial ends on the stator 100 side with shafts penetrating both axial ends. The outer rotor 200 is fixed to a ring-shaped member so as to rotate integrally with the inner rotor 300 on the side opposite to the main body casing, and the main body casing side is rotatably supported on the stator 100 side via a bearing. .

  Specifically, as shown in FIG. 2, the stator 100 includes a cylindrical stator base 110 and a plurality of stator teeth 120 formed on the outer peripheral surface of the stator base 110, which are integrally formed of a soft magnetic material. Has been.

  The stator teeth 120 are extended in a radial direction that is separated from the shaft center, are formed to have substantially the same width as the axial direction of the stator base 110, and are arranged in parallel in the circumferential direction on the outer peripheral surface side of the stator base 110. It is integrally molded. The stator teeth 120 are formed with a flange-shaped piece 121 projecting in the circumferential direction on the front end side, and an outer peripheral surface 120a facing the outer rotor 200 side is wider than a thickness on the stator base 110 side.

  In addition, a plurality of driving stator coils 101 are formed on the stator teeth 120 by winding the windings with distributed windings (number of slots per pole per phase q = 2) using the space between the side surfaces 120b as slots 129. Yes.

  The driving stator coil 101 is connected in series in a circumferential direction and connected in a power circuit 500 to be described later so as to correspond to three phases (U phase, V phase, W phase). Yes. In the present embodiment, the case where the driving stator coil 101 is distributed winding will be described as an example. However, the present invention is not limited to this, and concentrated winding may be used.

  As shown in FIG. 1, the outer rotor 200 includes a cylindrical outer base 210 and a plurality of rotor teeth 220 (see FIG. 4) formed on the inner peripheral surface of the outer base 210. It is integrally formed of a soft magnetic material.

  The rotor teeth 220 are extended in the radial direction approaching the axial center and are formed to have substantially the same width as the axial direction of the outer base 210, and are integrally formed in parallel with the circumferential direction on the inner peripheral surface side of the outer base 210. Molded. This rotor tooth 220 is formed with a flange-shaped piece 221 (see FIG. 4) protruding in the circumferential direction on the tip side, like the flange-shaped piece 121 of the stator tooth 120, and faces the stator 100 side. The peripheral surface 220a is made wider than the thickness on the outer base 210 side. The stator 100 is accommodated in the outer rotor 200 so as to be relatively rotatable with the inner peripheral surface 220a of the rotor tooth 220 facing the outer peripheral surface 120a of the stator tooth 120 of the stator 100 via the gap G1.

  Similarly to the slot 129 of the stator tooth 120, the rotor teeth 220 are formed with a plurality of driving rotor coils 201 by winding the windings in a distributed manner using slots between the side surfaces as slots.

  The driving rotor coil 201 is connected in series in a circumferential direction and connected in a power circuit 500 described later so as to correspond to three phases (U phase, V phase, W phase). Yes. In this embodiment, the case where the driving rotor coil 201 is distributed winding will be described as an example. However, the present invention is not limited to this, and concentrated winding may be used.

  Accordingly, the rotating electrical machine M supplies a three-phase alternating current as a driving current from the battery 550 shown in FIG. 5 to the driving stator coil 101 of the stator 100 via the inverter 560, thereby driving the driving rotor coil of the outer rotor 200. A torque for rotating the outer rotor 200 can be generated by applying electromagnetic induction (primary excitation induction) to 201.

  Further, as shown in FIG. 2, the stator 100 has a plurality of stator claw poles 131, 132 that function as magnetic paths, which will be described later, formed integrally with a soft magnetic material on the inner peripheral surface of the stator base 110. Here, in this embodiment, as will be described later, an eight claw pole structure is used to form eight poles as a matching structure for passing an induced current to and from the rotor side.

  The stator claw pole 131 has an extending portion 131a that extends in the radial direction from the edge on one axial side of the inner peripheral surface of the stator base 110 toward the axial center, and faces the inner peripheral surface from the tip of the extending portion 131a. Extending to the other end side edge in the axial direction parallel to the axial direction to be opposed, and a facing portion 131b facing the rotor claw poles 331, 332, 341, 342, 351, 352 of the inner rotor 300, which will be described later, via a gap G2, It has.

  The stator claw pole 132 has a diameter from the edge on the other axial end side of the inner peripheral surface of the stator base 110 toward the shaft center side so as to have a symmetrical shape with respect to the stator claw pole 131 with respect to the center in the axial direction. An extending portion 132a extending in the direction, and extending from the tip of the extending portion 132a to the edge on one end in the axial direction parallel to the axial direction facing the inner peripheral surface, and rotor claw poles 331 and 332 of the inner rotor 300 described later. , 341, 342, 351, 352 are provided with facing portions 132 b that face each other through a gap G 2.

The stator claw pole 131 is disposed on the inner peripheral surface side so as to be evenly spaced (for example, at a mechanical angle of 90 degrees) in the circumferential direction around the axis. Further, the stator claw poles 132 are located between the adjacent stator claw poles 131, and have an inner circumference so as to be evenly spaced (for example, at a mechanical angle of 90 degrees) in the circumferential direction around the axis. It is arranged on the surface side.
Here, in this embodiment, in order to match the secondary excitation frequency with the induced current of the rotor that forms eight poles, eight stator claw poles are provided so as to form the S pole and the N pole. Therefore, the configuration in FIG. 2 in which the stator claw poles 131 are disposed at the mechanical angles of 90 degrees and the stator claw poles 132 are disposed at the mechanical angles of 90 degrees is merely an example, and the stator claw poles are disposed. The interval can be appropriately changed depending on the number of poles.

  With this structure, the stator claw poles 131 and 132 surround the circumferentially continuous space between the extending portions 131a and 132a and the facing portions 131b and 132b at the axial intermediate portion of the inner peripheral surface of the stator base 110. A single direct current excitation stator coil 102 formed in an annular shape that circulates along the inner peripheral surface of the stator base 110 is installed in the space. That is, the stator 100 is constructed in a structure in which the first stator is integrally provided with the second stator. Note that the first stator and the second stator may be formed separately so as to be integrated.

  As shown in FIG. 3, the inner rotor 300 includes a cylindrical inner base 310 and a plurality of rotor claw poles 331, 332, 341, 342 that are formed on the outer peripheral surface of the inner base 310 and function as magnetic paths to be described later. 351 and 352 are integrally formed of a soft magnetic material. Here, in this embodiment, in order to form 8 poles as a matching structure for passing the induction current to and from the stator side, 8 lines are provided for each phase (U phase, V phase, W phase) described later. The claw pole structure is provided.

  The inner rotor 300 has three electrical phases that are shifted by 120 degrees so as to correspond to each of the three phases, and the U-phase inner rotor 300u, the V-phase inner rotor 300v, and the W-phase inner rotor 300w are stacked in the axial direction. It is formed in a step structure. The inner rotor 300 includes a U-phase rotor claw poles 331 and 332 and V-phase rotor claw poles 341, 342, W on an inner base 310 for each of the three phases fixed so as to rotate integrally with a common shaft. Phase rotor claw poles 351 and 352 are integrally formed.

  The rotor claw poles 331, 341, and 351 are extended portions that are extended in a radial direction that is separated from the axial center one end side edge portion of the outer peripheral surface of the inner base 310, similarly to the stator claw pole 131 of the stator 100. 331a, 341a, 351a, and the ends of the extension portions 331a, 341a, 351a extending from the tip end of the extension portion 331a, 341a, 351a to the other end side in the axial direction parallel to the axial direction facing the outer peripheral surface. The portions 131b and 132b are provided with facing portions 331b, 341b, and 351b that face each other through a gap G2.

  As with the stator claw pole 131 of the stator 100, the rotor claw poles 332, 342, and 352 are inner bases so as to be symmetrical with respect to the rotor claw poles 331, 341, and 351, respectively, with the axial center therebetween. Extending portions 332a, 342a, and 352a extending in a radial direction away from the axial center other end side edge portion of the outer peripheral surface of 310, and facing the outer peripheral surface from the tips of these extending portions 332a, 342a, and 352a Face portions 332b, 342b, and 352b that extend in parallel to the axial direction to one end side edge portion in the axial direction and face each other near the face portions 131b and 132b of the stator claw poles 131 and 132 of the stator 100 via the gap G2. ing.

The rotor claw poles 331, 341, and 351 are arranged on the outer peripheral surface side so as to be evenly spaced (for example, at a mechanical angle of 90 degrees) in the circumferential direction around the axis. The rotor claw poles 332, 342, and 352 are located between the adjacent rotor claw poles 331, 341, and 351, and are equally spaced (for example, mechanical angles) in the circumferential direction around the axis. It is arrange | positioned on an outer peripheral surface so that it may become 90 degree intervals.
Here, in the present embodiment, in order to match the secondary excitation frequency with the induced current of the rotor that forms eight poles, eight stator claw poles are provided so as to form the S pole and the N pole. Therefore, the configuration in FIG. 2 in which the stator claw poles 131 are disposed at the mechanical angles of 90 degrees and the stator claw poles 132 are disposed at the mechanical angles of 90 degrees is merely an example, and the stator claw poles are disposed. The interval can be appropriately changed depending on the number of poles.

  With this structure, the rotor claw poles 331, 332, 341, 342, 351, and 352 have extended spaces 331 a, 332 a, 341 a, and 342 a that extend in the circumferential direction from the axial intermediate portion of the outer peripheral surface of the inner base 310. , 351a, 352a and the facing portions 331b, 332b, 341b, 342b, 351b, 352b, are formed in an annular shape that circulates along the outer peripheral surface of the inner base 310. A single AC induction rotor coil 301u, 301v, 301w is installed.

  As shown in FIG. 4, the AC induction rotor coils 301u, 301v, 301w for each phase (U phase, V phase, W phase) of the inner rotor 300 are respectively connected to the driving rotor coil 201 of the outer rotor 200 corresponding to each phase. (201u, 201v, 201w) are connected by connection cables (wiring) 309u, 309v, 309w.

  Then, as shown in FIG. 5, the DC excitation stator coil 102 of the stator 100 includes a power supply circuit 500, a stator coil 101 for driving the stator 100, a rotor coil 201 for driving the outer rotor 200, and an AC induction rotor coil 301 for the inner rotor 300. Built in.

  In the power supply circuit 500, the DC excitation stator coil 102 is connected to the driving stator coil 101 via the diode bridge 510 in the stator 100, and the AC current input to the driving stator coil 101 is rectified by the diode bridge 510. Thus, a direct current is supplied to the direct current excitation stator coil 102.

  The power supply circuit 500 includes a DC excitation stator coil 102 of the stator 100 and AC induction rotor coils 301u, 301v, 301w of the inner rotor 300, a stator claw pole 131, 132, and a rotor claw pole 331, 332, 341, 342, 351. , 352, 352, and the DC current supplied to the DC excitation stator coil 102 of the stator 100 is supplied to the stator claw poles 131 and 132 of the stator 100 and the rotor claw pole 331 of the inner rotor 300. It is supplied to the driving rotor coil 201 of the outer rotor 200 via 332, 341, 342, 351, 352.

  Specifically, the power supply circuit 500 connects an inverter 560 to a battery 550 that is mounted on the vehicle, and takes out stored power as AC power. The battery 550 and the inverter 560 constitute an AC power supply, and the vehicle The rotary electric machine M (outer rotor 200) is driven to rotate at a desired torque by controlling the inverter 560 by a controller 570 that performs overall control.

  At this time, the rotating electrical machine M uses the rotating magnetic flux generated when the power supply circuit 500 energizes (supplies power to) the driving stator coil 101 for each phase of the stator 100 to drive the driving rotor coil for each phase of the outer rotor 200. The magnetic induction generated in the stator coil 101 for driving the stator 100 is generated in the driving rotor coil 201 of the outer rotor 200. It is possible to obtain a rotational torque by repelling the magnetic field to be driven.

  This power supply circuit 500 connects a diode bridge 510 to a neutral point position in the Y connection of the driving stator coil 101 of the stator 100 connected to each phase (U phase, V phase, W phase) of the inverter 560, and The circuit configuration is such that the DC excitation stator coil 102 of the stator 100 is connected in parallel to the diode bridge 510.

  The inverter 560 stores in the battery 550 by serially connecting the U-phase stator coil 101u, the V-phase stator coil 101v, and the W-phase stator coil 101w, which constitute the drive stator coil 101, for each phase. The direct current power thus supplied is supplied as alternating current power obtained by direct current (DC) / alternating current (AC) conversion, and each is subjected to alternating current excitation.

  The diode bridge 510 includes a pair of rectifier diodes (rectifier elements) 511u and 512u, a rectifier diode 511v and 512v, and a rectifier diode 511w so as to correspond to each phase of the inverter 560. 512w is connected in series, and both ends are connected in parallel.

  The diode bridge 510 includes a rectifier diode 511u, 512u, a rectifier diode 511v, 512v, and a rectifier diode 511w, 512w in the middle portion of each set, and a U-phase stator coil 101u for each phase, The opposite ends of the stator coil 101v and the W-phase stator coil 101w from the inverter 560 are connected. In addition, the diode bridge 510 includes a DC excitation stator of the stator 100 with both ends of each set of the rectifier diodes 511u and 512u, the rectifier diodes 511v and 512v, and the rectifier diodes 511w and 512w as common connection points. The coil 102 is connected in parallel.

  With this circuit configuration, the rotating electrical machine M can be AC-excited by supplying the AC power stored in the battery 550 via the inverter 560 to each phase of the stator coil 101 for driving the stator 100, Further, the AC power for each phase via the driving stator coil 101 is rectified by each pair of rectifier diodes 511u and 512u, rectifier diodes 511v and 512v, and rectifier diodes 511w and 512w of the diode bridge 510. Thus, DC power can be supplied to the DC excitation stator coil 102 of the stator 100.

  At this time, when the rotating electric machine M is energized (supplied) to the DC excitation stator coil 102 of the stator 100 through the diode bridge 510, the DC current rectified from the AC drive current is supplied to the stator claw poles 131 and 132. A magnetic circuit having a direction corresponding to a magnetic field generated by an energizing current that circulates around the excitation stator coil 102 (around the stator base 110) bypasses the stator base 110 as a yoke to form a magnetic circuit.

  The stator claw poles 131 and 132 of the stator 100 are opposed to the facing portions 331b, 332b, 341b, and 342b of the rotor claw poles 331, 332, 341, 342, 351, and 352 of the inner rotor 300 rather than the facing portions 131b and 132b. , 351b, 352b intermittently and repeatedly approach at a short distance through the minute gap G2.

  Therefore, the magnetic flux passing through the stator claw poles 131 and 132 of the stator 100 passes through the extending portions 131a and 132a and the stator base 110 in a direction corresponding to the magnetic field generated by the energization current to the DC excitation stator coil 102. At the same time, the chain between the rotor claw poles 331, 332, 341, 342, 351, 352 of the inner rotor 300 and the facing portions 331b, 332b, 341b, 342b, 351b, 352b of the inner rotor 300 at the timing of approaching the facing portions 131b, 132b. You can change and transfer.

  This interlinkage magnetic flux is obtained by using the inner base 310 as a yoke through the facing portions 331b, 332b, 341b, 342b, 351b, 352b of the inner rotor 300 and the extending portions 331a, 332a, 341a, 342a, 351a, 352a. A magnetic circuit that returns to the stator claw poles 131 and 132 of the stator 100 can be formed in a direction corresponding to the magnetic field generated by the energization current to the DC excitation stator coil 102.

  That is, the stator claw poles 131 and 132 of the stator 100 and the rotor claw poles 331, 332, 341, 342, 351, and 352 of the inner rotor 300 are the DC excitation stator coil 102 and the AC induction rotor coil 301 (301u, 301v, 301w). Are formed in a shape along the magnetic field lines of the magnetic field formed around each of them, and each function as a magnetic path through which the magnetic flux passes.

  The magnetic flux passing through the rotor claw poles 331, 332, 341, 342, 351, and 352 of the inner rotor 300 forms a magnetic circuit that bypasses the inner base 310 as a yoke as described above. Electromagnetic induction (secondary excitation) that generates an induced current in the AC induction rotor coils 301u, 301v, and 301w surrounded by the rotor claw poles 331, 332, 341, 342, 351, and 352 can be used.

  The induced current generated in the AC induction rotor coils 301u, 301v, and 301w passes through the rotor claw poles 331, 332, 341, 342, 351, and 352 of the inner rotor 300 while being shifted by 120 degrees in electrical angle. Since the magnetic fluxes are superposed so that the directions of the magnetic fluxes alternate in the circumferential direction, excitation can be performed with alternating waveforms corresponding to the U phase, V phase, and W phase, and the driving rotor of the outer rotor 200 connected to each of them can be excited. Coils 201u, 201v, and 201w can be input (supplied) as an AC drive current.

  Therefore, the outer rotor 200 that rotates the shaft integrally is rotationally driven with a rotational torque based on a primary excitation action that generates a magnetic field by interlinking the magnetic flux generated in the driving stator coil 101 of the stator 100 with the driving rotor coil 201. In addition to this, the AC induction current generated by the secondary excitation action from the AC induction rotor coil 301 of the inner rotor 300 is input as a drive current to the drive rotor coil 201, thereby driving the stator 100. It can be rotationally driven with rotational torque obtained by strengthening the interaction with the magnetic flux generated in the stator coil 101.

  As described above, the rotating electrical machine M according to the present embodiment has the DC excitation stator coil 102 and the stator claw poles 131 and 132 installed on the inner peripheral surface side of the stator 100 accommodated in the outer rotor 200, A structure is employed in which the inner rotor 300 including the tacro poles 331, 332, 341, 342, 351, 352 and the AC induction rotor coil 301 is rotatably accommodated.

  For this reason, the rotating electrical machine M simply supplies an AC drive current to the stator coil 101 for driving the stator 100 from an on-vehicle power source (battery 550 and inverter 560), and generates electromagnetic waves between the outer rotor 200 and the stator 100. In addition to rotational torque by induction (primary excitation induction), an alternating current generated by electromagnetic induction (secondary excitation induction) between the stator 100 and the inner rotor 300 may be supplied to the outer rotor 200 to increase the rotational torque. it can.

  Therefore, secondary excitation induction that does not require a slip ring or a plurality of inverters can be realized, and a secondary excitation induction machine type rotating electrical machine M that can be reduced in size and reduced in cost can be provided.

  While embodiments of the invention have been disclosed, it will be apparent to those skilled in the art that changes may be made without departing from the scope of the invention. All such modifications and equivalents are intended to be included in the following claims.

100 stator (first stator, second stator)
101 Stator Coil for Driving 102 DC Excited Stator Coil 120 Stator Teeth 131, 132 Stator Claw Pole 200 Outer Rotor (First Rotor)
201 Rotor coil for driving 220 Rotor teeth 300 Inner rotor (second rotor)
301 AC induction rotor coil 309u, 309v, 309w Connection cable (wiring)
331, 332, 341, 342, 351, 352 Rotor claw pole 500 Power supply circuit 510 Diode bridge 511u, 511v, 511w, 512u, 512v, 512w Rectifier diode 550 Battery 560 Inverter 570 Controller G1, G2 Gap M Rotating electric machine

Claims (5)

  1. A first stator having a driving stator coil for generating magnetic flux by supplying an alternating current;
    A driving rotor coil for interlinking a stator-side magnetic flux generated in the driving stator coil of the first stator, and the rotor-side magnetic flux generated in the driving rotor coil and the stator-side magnetic flux A rotating electric machine comprising: a first rotor that is rotated by torque generated between
    A second stator having a DC exciting stator coil that is supplied with a DC current converted from an AC current supplied to the driving stator coil of the first stator and generates a magnetic flux by the supply of the DC current;
    A second rotor having an AC induction rotor coil for inducing an AC current using a magnetic field generated in the DC excitation stator coil of the second stator,
    A rotating electrical machine that supplies an alternating current generated in the alternating current induction rotor coil of the second rotor to the driving rotor coil of the first rotor.
  2.   The rotating electrical machine according to claim 1, further comprising a diode bridge that converts an alternating current supplied to the driving stator coil of the first stator into a direct current.
  3. The first rotor and the second rotor are arranged coaxially;
    The rotating electrical machine according to claim 1, further comprising: a wiring that supplies an alternating current induced in the alternating current induction rotor coil of the second rotor to the driving rotor coil of the first rotor.
  4. The second stator includes a stator claw pole that functions as a magnetic path of magnetic flux generated in the DC excitation stator coil,
    The second rotor includes a rotor claw pole that functions as a magnetic path of magnetic flux interlinking from the status low pole,
    The rotating electric machine according to any one of claims 1 to 3, wherein the rotor claw pole induces an alternating current in the alternating current induction rotor coil by electromagnetic induction by a magnetic field formed by the magnetic flux.
  5. The DC excitation stator coil of the second stator and the AC induction rotor coil of the second rotor are formed in an annular shape and are arranged coaxially with the second stator and the second rotor,
    The stator claw pole of the second stator and the rotor claw pole of the second rotor are arranged along a magnetic field line formed by the DC excitation stator coil and the AC induction rotor coil, and intermittent during relative rotation. The rotating electrical machine according to claim 4, which is arranged so as to repeatedly face each other and cause the electromagnetic induction.

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JP2015012181A JP6375967B2 (en) 2015-01-26 2015-01-26 Rotating electric machine
CN201610037599.5A CN105827077B (en) 2015-01-26 2016-01-20 Electric rotating machine
DE102016200857.9A DE102016200857A1 (en) 2015-01-26 2016-01-21 Electric rotating machine

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JP6375967B2 true JP6375967B2 (en) 2018-08-22

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Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2221893A1 (en) * 1972-05-04 1973-11-15 Siemens Ag exciter arrangement
JPS50109409A (en) * 1974-02-08 1975-08-28
JPS52109107A (en) * 1976-03-09 1977-09-13 Eizaburou Aida Induction motor cascade connected brushless polyphase synchronous motor
SE514818C2 (en) * 1999-04-30 2001-04-30 Abb Ab Constant-frequency varying / variable rotational speed and the method in such a machine
JP2002136191A (en) * 2000-10-23 2002-05-10 Kobe Steel Ltd Secondary exciter of generator motor
JP2007228677A (en) * 2006-02-22 2007-09-06 Hitachi Ltd Generating set and rotary electric machine
JP5109917B2 (en) * 2008-10-10 2012-12-26 株式会社デンソー Rotating electric machine
DE102009044528A1 (en) * 2008-11-14 2010-06-02 Denso Corporation, Kariya-City reluctance motor
JP4775465B2 (en) * 2009-03-17 2011-09-21 株式会社豊田中央研究所 Drive device for rotating electrical machine
JP5401213B2 (en) 2009-08-31 2014-01-29 株式会社日立製作所 Secondary excitation power generator and secondary excitation variable speed generator motor
WO2013001559A1 (en) * 2011-06-27 2013-01-03 株式会社 日立製作所 Dynamo-electric machine
KR101321307B1 (en) * 2011-10-31 2013-10-28 삼성전기주식회사 Drive apparatus for switched reluctance motor and method thereof

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