JPH09163701A - Rotary electric machine - Google Patents

Abstract

(57) Abstract: A rectifier and its wiring are arranged or simplified. An auxiliary winding 16 of an electric motor / generator 12A
The Ba to 16Bd are arranged and wound so that their terminal voltages are in the same phase, and a single-phase voltage obtained by combining the terminal voltages of the auxiliary windings 16Ba to 16Bd in the same phase is a rectifier 24.
Connect so that it is supplied to A. The rectifier bridge used in the rectifier 24A becomes the single-phase bridge 38 and the auxiliary wiring 22
A is single-phase wiring. Alternatively, the auxiliary windings 16Ba to 1
6Bd are arranged and wound so that the phases of the terminal voltages thereof have different values, and the auxiliary windings 16Ba to 16Bd are provided.
Provide a circuit that outputs the maximum value of the terminal voltage of. The rectifying bridge becomes unnecessary, and the auxiliary wiring 22A becomes a single-phase wiring.
The device configuration is simplified and the cost is reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotating electric machine used as an engine-driven generator or the like in an electric vehicle.

[0002]

2. Description of the Related Art Japanese Unexamined Patent Publication No. 5-252747 discloses a three-phase permanent magnet field type synchronous generator 12 driven by an engine 10, as shown in FIG. 14 of the present application. The generator 12 includes a rotor 14 that is connected to the rotating shaft of the engine 10 and includes a permanent magnet, and a stator winding 16 in which a voltage is induced as the rotor 14 rotates. The terminal voltage of the stator winding 16 is supplied to the rectifier 20 via the main wiring 18 and rectified by the rectifier 20,
It is output from the rectifier 20 as the main rectified output. The stator winding 16 has a center tap, and the center tap voltage of the stator winding 16 is supplied to the rectifier 24 via the auxiliary winding 22, rectified by the rectifier 24, and the rectifier 24 as an auxiliary rectified output. Is output from. It should be noted that this figure has been modified by the applicant of the present application for the sake of simplification of the description and for comparison and contrast with the present invention.

[0003]

However, in such a structure, a three-phase rectifier must be used as a rectifier for obtaining an auxiliary rectified output, and as a supplementary wiring for supplying a center tap voltage to this rectifier. A total of 3 power lines must be used. A first object of the present invention is to simplify the configuration of the rectifier or eliminate the rectifier by devising the arrangement, winding direction and mutual connection of the stator windings in a rotating electric machine such as a generator or an electric motor, and The object is to reduce the number of power wirings and thereby simplify the device configuration and reduce the cost. A second object of the present invention is to obtain an output with less ripples with the least possible wiring and the number of parts by the same device.

[0004]

In order to achieve such an object, the first structure of the present invention comprises a multi-phase motor or a multi-phase generator by magnetic coupling between the rotor and the rotor. And a second stator winding that constitutes a generator by magnetically coupling with the rotor, and the output of the second stator winding is rectified by a rectifier in the subsequent stage. A rotary electric machine that supplies a load includes a plurality of the second stator windings, and the plurality of second stator windings are arranged and interconnected so that the in-phase combined value of the terminal voltages is supplied to a rectifier at a subsequent stage. And being wound. In this configuration, what is supplied to the subsequent rectifier is the in-phase combined value of the terminal voltages of the respective second stator windings. Since this voltage is a single-phase voltage, in this configuration, the rectifier in the subsequent stage can be realized by a single-phase rectifier, and the wiring from the rotating electric machine to this rectifier can also be realized by single-phase wiring. As a result, the structure of the rectifier is simplified,
A reduction in the number of power wirings is realized, and the device configuration is simpler and less expensive.

A second structure of the present invention is a magnetic coupling between a rotor and a first stator winding which constitutes a polyphase motor or a polyphase generator by magnetic coupling between the rotor and the rotor. And a second stator winding that constitutes a generator according to the present invention, the plurality of second stator windings are provided, and the plurality of second stator windings have mutually different terminal voltage phases. Are arranged and wound so that the rotating electric machine is
It is characterized by including a maximum value circuit that supplies the highest voltage among the terminal voltages of the stator winding to the load in the subsequent stage. In this configuration, the maximum value circuit outputs the highest value among the terminal voltages of the respective second stator windings. This voltage is a voltage obtained by smoothing the terminal voltage of the second stator winding with a ripple rate according to the number and density of the second stator windings.
Therefore, in this configuration, the rectifier is not necessary, and the wiring from the rotating electric machine to the load can be realized by direct current (or single phase) wiring. As a result, the structure of the rectifier can be simplified, the number of power lines can be reduced, and the device structure can be made simpler and less expensive. In addition, in the present configuration, as the number of the second stator windings is increased and the arrangement density is increased, the ripple rate of the maximum value circuit output is reduced.

According to a third structure of the present invention, in the second structure, the plurality of second stator windings are arranged at the same intervals and wound so that voltages in the same direction are induced. Characterize. In this configuration, in the configuration in which the winding directions of the second stator windings are aligned (that is, winding is performed so that a voltage in the same direction is induced), the lowest number of second fixed windings is the second fixed. It is realized by the child winding.

According to a fourth aspect of the present invention, in the second configuration, at least one pair of the plurality of second stator windings are arranged so as to form an electrical angle of 360 ° and are arranged in opposite directions. It is characterized in that it is wound so as to induce the voltage. In this configuration, a phase difference of 180 ° is realized by appropriately reversing the winding direction of the second stator winding (that is, winding so that voltages in opposite directions are induced). Therefore, as compared with the configuration in which the winding directions of the second stator windings are aligned, a lower ripple rate can be realized with a smaller number of second stator windings.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. It should be noted that the same or corresponding components as those of the conventional technique shown in FIG.

(1) First Embodiment FIG. 1 shows a circuit configuration of a motor / generator (M / G) 12A and its peripherals according to a first embodiment of the present invention. The rotor 14 of the M / G 12A has a permanent magnet as in the prior art and is rotationally driven by the engine 10. The number of poles of the rotor 14 is four. The first feature of the present embodiment is that, as a stator winding, a main winding 16A that is a first stator winding and an auxiliary winding 1 that is a second stator winding.
That is, 6Ba to 16Bd are provided.

The main winding 16A is three-phase connected according to a method such as Δ, Y (Y in the figure), and together with the rotor 14, constitutes a three-phase rotating electric machine that can function as both an electric motor and a generator. doing. First, when the inverter 20A is operated as a rectifier, the three-phase alternating current induced on the main winding 16A by the exciting magnetic flux from the rotor 14 is the three-phase main wiring 1
Is supplied to the inverter 20A via
It is rectified by A, and the main battery 26 is charged by the obtained rectified output. Next, when the inverter 20A is operated as an inverter as its name implies, the discharge output of the main battery 26 is converted into three-phase alternating current by the inverter 20A, and the obtained three-phase alternating current is passed through the main wiring 18 to the main wiring 18. The magnetic flux supplied to the winding 16 </ b> A causes the magnetic flux generated in the main winding 16 </ b> A to interlink with the exciting magnetic flux from the rotor 14, and as a result, torque is applied to the rotor 14.

The auxiliary windings 16Ba to 16Bd, together with the rotor 14, constitute a single-phase generator. That is, the auxiliary windings 16Ba to 1Ba are excited by the exciting magnetic flux from the rotor 14.
The alternating current induced on 6Bd is supplied to the rectifier 24A via the single-phase auxiliary wiring 22A, rectified by the rectifier 24A, and the auxiliary battery 32 is charged by the obtained rectified output. The second feature of the present embodiment is that the auxiliary windings 16Ba to 16Bd are single-phase windings in this manner, so that the auxiliary wiring 22A is a single-phase wiring and the rectifying bridge in the rectifier 24A is a single-phase bridge 38. That is, it is possible to realize simplification and cost reduction of the device configuration. The third feature of this embodiment is that the auxiliary windings 16Ba to 1Ba
6Bd is connected in parallel as seen from the auxiliary wiring 22A, whereby the charging current of the auxiliary battery 32 is increased. The chopper circuit 40, which is provided between the single-phase bridge 38 and the auxiliary battery 32 in the figure and constitutes a part of the rectifier 24A, uses the rectified output from the single-phase bridge 38 to charge the auxiliary battery 32. It is a circuit that steps up or down to a suitable voltage (for example, 12 V in the case of an electric vehicle described later).

The fourth feature of this embodiment is that the auxiliary winding 16
The auxiliary windings 16Ba to 16Bd are electrically symmetrical so that the load is balanced among the Ba to 16Bd, in other words, the voltages supplied to the auxiliary wiring 22A side are in phase and stable regardless of the position of the rotor 14. It has been placed in. First, in FIGS. 1 and 2, the mechanical angular positions of the auxiliary windings 16Ba to 16Bd on the stator are 0 °, 90 °, 180 degrees with respect to that of the auxiliary winding 16Ba in order.
And 270 °. Since it is assumed here that a 4-pole machine, that is, the number of pole pairs = 2, when this mechanical angle position is converted into an electrical angle, that is, an electrical angle position, 0 °, 180 °, 36 ° with respect to that of the auxiliary winding 16Ba.
It becomes 0 ° and 540 (= 180) °. Further, as is clear from FIG. 1, the auxiliary winding 1 for the auxiliary wiring 22A is
The connection direction of 6Ba and 16Bc is opposite to the connection direction of the auxiliary windings 16Bb and 16Bd to the auxiliary wiring 22A. As a result, the phase difference between the output voltage of the auxiliary winding 16Bb and the output voltage of the auxiliary winding 16Bd = 18
If 0 ° is added to the above electrical angle, the phase difference of the auxiliary windings 16Ba to 16Bd with respect to the output voltage of the auxiliary winding 16Ba is obtained. This phase difference is 0 ° for any auxiliary winding. That is, in this embodiment, even though the mechanical angular positions of the auxiliary windings 16Ba to 16Bd on the stator 14 are different from each other, the voltage supplied from the auxiliary windings 16Ba to 16Bd to the auxiliary wiring 22A is set. Can be in phase with each other. Further, since the auxiliary windings 16Ba to 16Bd are arranged around the stator 14 at equal intervals, a stable voltage can be applied to the auxiliary wiring 22 regardless of the angular position of the stator 14.

As a result, the output voltage waveform of the single-phase bridge 38 in this embodiment becomes a full-wave rectified waveform as shown in FIG. In addition, in this embodiment, the output voltages of the auxiliary windings (for example, 16Ba and 16Bb) having a mutual arrangement interval of 180 ° in electrical angle are reversed by matching the winding directions of the auxiliary windings and reversing the connection directions. Although the phases are matched, the same effect can be obtained by making the connection directions the same and reversing the winding directions. Although this point is not illustrated, those skilled in the art can uniquely understand the disclosure of the present application.

(2) Second Embodiment In the present invention, the auxiliary windings 16Ba to 16Bd are connected to the auxiliary wiring 22.
The configuration is not limited to the configuration in which they are connected in parallel when viewed from A. For example, in the second embodiment shown in FIG. 4, a series connection circuit of auxiliary windings 16Ba and 16Bc,
A series connection circuit of the auxiliary windings 16Bb and 16Bd is connected in parallel to the auxiliary wiring 22A. With such a configuration, although the charging current of the auxiliary battery 32 is smaller than that in the first embodiment, the charging voltage can be increased. Therefore, the present embodiment is suitable for the purpose of using the auxiliary battery 32 having a higher voltage specification than the first embodiment. Further, when the present embodiment is applied to the use of the auxiliary battery 32 having the same voltage specification as the first embodiment,
The induced voltage per auxiliary winding can be halved as compared with the first embodiment, and therefore the number of turns of the auxiliary winding can be reduced and the size can be reduced. Also in this embodiment, instead of the method of matching the winding directions of the auxiliary windings and reversing the connection direction,
A method in which the connection directions are the same and the winding directions are reversed can be adopted.

(3) Third Embodiment The present invention is also limited to a structure in which four auxiliary windings are used and a structure in which the auxiliary windings are arranged so that the arrangement interval is 180 ° in electrical angle. is not. For example, in the third embodiment shown in FIG. 5, there are two auxiliary windings, and the auxiliary windings 16Ba and 16Bb are arranged at an electrical angle of 360 electrical degrees.
゜. Needless to say, the auxiliary windings should be placed at intervals of 180 ° or 36
The interval may be other than 0 °. Even in that case, it is preferable to balance the loads between the auxiliary windings by reversing the connection between the auxiliary windings and reversing the winding direction.

(4) Fourth Embodiment The present invention is not limited to a quadrupole machine. For example, in the fourth embodiment shown in FIG. 6, the rotor 14A uses a 6-pole M / G having 6 poles. Further, according to the same idea as in the first embodiment, a total of 6 Auxiliary winding 16B
The structure having a to 16 Bf is used. in this way,
The structure according to the same idea as in the first to third embodiments can be applied to the M / G 12A other than the 4-pole machine. Also in this embodiment, the method of balancing the loads between the auxiliary windings by matching the winding directions of the auxiliary windings and reversing the wiring directions, or the auxiliary winding by reversing the winding directions with the same wiring direction. It is preferable to use a method of balancing the load between the lines together.

(5) Fifth Embodiment The present invention is not limited to the configuration in which the voltages supplied from the auxiliary winding to the auxiliary wiring 22A are in phase with each other. For example, in the fifth embodiment shown in FIG. 7, four auxiliary windings 16Ba to 16Bd are arranged on the stator of the four-pole machine at the same winding direction and mechanical angle as in the first embodiment, and further auxiliary The parallel connection circuit of the windings 16Ba and 16Bc is connected via the diode D1, and the parallel connection circuit of the auxiliary windings 16Bb and 16Bd is connected via the diode D2.
Each is connected to the auxiliary wiring 22A. The connecting directions of the diodes D1 and D2 are the same as seen from the auxiliary wiring 22A. Therefore, the diodes D1 and D2 are connected to the output voltage a of the parallel connection circuit of the auxiliary windings 16Ba and 16Bc.
And a maximum value circuit 42 that applies the higher one of the output voltages b of the parallel connection circuit of the auxiliary windings 16Bb and 16Bd to the auxiliary wiring 22A. The diodes D1 and D2 are preferably incorporated in or attached to the housing of the M / G 12A.

Also in this embodiment, a full-wave rectified waveform (see FIG. 8) similar to the output voltage waveform of the single-phase bridge 38 (see FIG. 3) in the first embodiment has a chopper circuit 40.
Applied to the input end of. That is, the output voltage a is applied to the input terminal of the chopper circuit 40 during the period when the output voltage a becomes positive, and the output voltage b during the period when the output voltage b becomes positive. Auxiliary winding 16 for auxiliary windings 16Ba and 16Bc
Since Bb and 16Bd are arranged at positions shifted by 180 ° in terms of electrical angle, both periods come alternately as indicated by the arrow line in FIG. 8, and therefore full-wave rectification is performed as shown in this figure. The waveform is obtained.

One of the advantages of this embodiment over the first to fourth embodiments is that the single phase bridge 38 can be eliminated.
Therefore, the number of diodes can be reduced from four (built in the single-phase bridge 38) to two (D1 and D2). That is, according to the present embodiment, since the maximum value circuit 42 is provided side by side with the stator circuit of the M / G 12A, the auxiliary winding 1
A voltage obtained by smoothing the terminal voltage of 6Ba to 16Bd can be applied to the auxiliary wiring 22A. As a result, the device configuration can be further simplified and the cost can be reduced. Of course, the same advantages as those of the first embodiment can be obtained in this embodiment, and various modifications described in regard to the first to fourth embodiments can be applied to this embodiment.

(6) Sixth Embodiment Another advantage of the fifth embodiment over the first to fourth embodiments is that the number of auxiliary windings is not restricted by the number of poles of M / G 12A. is there. In the sixth embodiment (see FIG. 9) utilizing this, six auxiliary windings 16Ba to 16Bf are arranged on the stator of the four-pole machine in the same winding direction and mechanical angle as in the fourth embodiment. doing. The idea according to the fifth embodiment thus has an advantage regarding the degree of freedom in design.

In addition, in the sixth embodiment, the auxiliary winding 16B
a and 16Bd connected in parallel via a diode D1, auxiliary windings 16Bb and 16Be connected in parallel via a diode D2, and auxiliary windings 16Bc and 16B
The parallel connection circuit of f is connected to the auxiliary wiring 22A via the diode D3. In this embodiment, since the maximum value circuit 42A is configured by the diodes D1 to D3, the voltage having the waveform shown in FIG. 10 is applied to the auxiliary wiring 22A. That is, the output voltage of the parallel connection circuit of the auxiliary windings 16Ba and 16Bd, the auxiliary winding 16B
the output voltage of the parallel connection circuit of b and 16Be, and the output voltage of the parallel connection circuit of the auxiliary windings 16Bc and 16Bf,
When the output voltage a is higher than the output voltage b or the output voltage c, the output voltage a is output and the output voltage b is output as shown by an arrow line in FIG. Output voltage b during periods higher than voltage a and c
However, the output voltage c is applied to the input terminal of the chopper circuit 40 during the period when the output voltage c is higher than the output voltage a or the output voltage b.

Therefore, while the ripple ratio of the input voltage of the chopper circuit 40 in the first to fifth embodiments = (maximum voltage-minimum voltage) / maximum voltage is 1, it is sin (120 °) in this embodiment. ) = 0.866.
The advantage of the sixth embodiment over the first to fifth embodiments is that the ripple rate of the input voltage to the chopper circuit 40 can be reduced in this way, and therefore the auxiliary wiring 22A and the chopper circuit 4
0, noise generation in the circuit in the subsequent stage such as the auxiliary battery 32,
It is possible to reliably prevent or reduce heat generation, malfunction, etc. without a large-capacity smoothing capacitor. As a result, the device configuration can be simplified and the cost can be reduced. Also, the magnetic influence on the main winding 16A side is reduced.

The effect of reducing the ripple rate increases as the number of auxiliary windings increases and the arrangement density becomes higher. Modifications of the present embodiment focusing on this point can be easily performed by a person skilled in the art based on the disclosure of the present application. However, since the number of diodes constituting the maximum value circuit tends to increase as the number of auxiliary windings increases, the number of diodes is increased in consideration of the balance with the simplification of the device configuration by eliminating the single-phase bridge 38. It will need to be transformed. Furthermore, the same effects as the effects obtained in the first to fifth embodiments can be obtained in this embodiment, and the same modifications as the modifications described in regard to the first to fifth embodiments are also applied to this embodiment. Applicable.

(7) Seventh Embodiment In the fifth and sixth embodiments, the auxiliary windings 16Ba to 16B are used.
d are arranged at the same intervals. On the other hand, in the seventh embodiment shown in FIG. 11, the electrical angle with respect to the auxiliary winding 16Ba is 0 °, 90 °, and 3 in this order on the stator of the four-pole machine.
Four auxiliary windings 16Ba to 16Bd are arranged so as to be 60 ° and 450 (= 90) °. Further, in the fifth and sixth embodiments, the auxiliary windings 16Ba to 16Bd are wound so that voltages in the same direction are induced. In contrast, in the seventh embodiment, the auxiliary windings 16Ba and 1
The auxiliary windings 16Bc and 16Bd are wound so that a voltage in the opposite direction to that of 6Bb is induced. Therefore, the phases of the output voltages of the auxiliary windings 16Ba to 16Bd, which take into account the phase difference of 180 ° caused by the difference in the winding direction, are 0 °, 90 °, 180 in order with reference to the auxiliary winding 16Ba.
And 270 °. Auxiliary winding 16Ba to 16Bd
Are respectively connected to the auxiliary wiring 22A via the diodes D1 to D4 which form the maximum value circuit 42B.

When the output voltages of the auxiliary windings 16Ba to 16Bd are represented as a, b, c or d, the maximum value circuit 42B outputs the output voltages b to d as the output voltage a.
In the lower period, the output voltage a is changed to the output voltages a, c and d.
Is lower than the output voltage b, the output voltage b is output, and when the output voltages a, b and d are lower than the output voltage c, the output voltage c is output.
The output voltage d is output during a period in which the output voltages a to c are lower than the output voltage d. Therefore, the maximum value circuit 42
The output voltage waveform of B is a waveform in which the output voltages a to d alternately appear, as shown by the arrow line in FIG. 12, and the ripple rate thereof is sin (45 °) = about 0.707.
The advantage of this embodiment over the fifth and sixth embodiments is that the ripple rate is lower and the capacitance of the smoothing capacitor can be further reduced. Of course, similar ripple rate reduction is possible by simple expansion of the fifth and sixth embodiments in which the distance between the auxiliary windings is reduced to 90 ° in electrical angle. However, in that case, eight auxiliary windings are required to balance the load between the auxiliary windings. When the winding direction reversal of the auxiliary winding is adopted as in the present embodiment, the auxiliary winding 16Ba is arranged at a mechanical angle that opposes the periphery of the rotor 14.
Since ~ 16Bd can be arranged, the load balance between the auxiliary windings can be improved with a smaller number of auxiliary windings as compared with the simple expansion of the fifth and sixth embodiments.

[0026]

EXAMPLES An example of the application of each of the above-mentioned embodiments is the M / G used in an electric vehicle generally called a series hybrid vehicle (SHV). Here, in a pure electric vehicle, the electric motor for driving the vehicle is driven by the discharge output of the main battery mounted in the vehicle, while in the SHV
Then, the engine drives the generator, and the power output of this generator drives the electric motor for running the vehicle. The main battery mounted on the SHV can be charged with the power generation output of this generator, and supplements the excess or deficiency of the power generation output of the generator with respect to the drive power to be supplied to the vehicle drive motor. Therefore, S
The HV has an energy efficiency advantage of being able to suppress the frequency of charging of the main battery by a vehicle-mounted or external charging device (extension of the travelable distance per charge of the main battery), as compared with a pure electric vehicle. Further, as compared with a conventional engine vehicle, the engine can be operated in a high efficiency region and without a large change in throttle opening or rotation speed, so that it has an advantage of low fuel consumption and low emission. Furthermore, by setting the generator driven by the engine to M / G, it is possible to apply a starting torque to the engine from the M / G by the discharge output of the main battery.

FIG. 13 shows an example in which the above-described embodiments are applied to SHV. In this embodiment, the discharge output of the main battery 26 is converted into a three-phase AC by the inverter 28, and this three-phase AC power is used for the vehicle running three-phase electric motor 3.
0 as driving power. The controller 36 realizes the required acceleration or deceleration by the electric motor 30 by controlling the operation of the inverter 28 according to the accelerator operation, the brake operation, etc. of the vehicle operator. On the other hand, engine 1
0 drives the M / G 12A, and the inverter 20A drives this M
/ G12A rectifies the three-phase power generation output from the main winding 16A, and supplies the resulting power to the inverter 28 and the main battery 26. When the engine 10 is started, the inverter 20A functions as an original inverter, converts the discharge output of the main battery 26 into a three-phase alternating current, and outputs M
/ G12A main winding 16A. Inverter 20
The operation of A and the engine 10 is controlled by the controller 36 according to the value of the torque to be output from the electric motor 30, the state of each part of the vehicle (for example, the charge state of the main battery 26), and the like.

The auxiliary battery 32 in this embodiment is
In-vehicle electrical accessories 34, such as various control circuits and wipers,
This is a battery for supplying electric power to parts such as a lamp, and the auxiliary winding 16Ba and the like and the rotor 14 are used as a generator for supplying electric power to the electric auxiliary machine 34 and the auxiliary machine battery 32. The rectifier 24A and the electric auxiliary device 34 are responsive to a command or the like from the vehicle operator to the electric auxiliary device 34.
It is controlled by the controller 36.

The present invention can be applied to an induction machine and also to a rotating electric machine other than M / G (for example, a rotating electric machine whose main winding provides only one of the functions of an electric motor and a generator). . Further, the main winding and the auxiliary winding are not limited to separate structures. For example, one to several phases of the main winding are shunt windings, and one to several of the auxiliary windings are thereby formed. It is also possible to adopt a configuration that realizes. In addition, it can be applied to other than electric vehicles.

[0030]

According to the first aspect of the present invention, a plurality of second stator windings are provided, and the plurality of second stator windings are supplied with the in-phase combined value of their terminal voltages to the rectifier at the subsequent stage. Due to the arrangement, interconnection and winding as described above, it becomes possible to supply a single-phase voltage from the second stator winding to the subsequent rectifier. Therefore, this rectifier can be realized by a single-phase rectifier, and the wiring from the rotating electric machine to this rectifier can be realized by a single-phase wiring. As a result, the structure of the rectifier is simplified, the number of power lines is reduced, and the device structure is further simplified.
Can be cheaper.

According to the second configuration of the present invention, a plurality of second stator windings are provided, and the plurality of second stator windings are arranged and wound so that the phases of their terminal voltages are different from each other. Since the maximum value circuit that supplies the highest voltage among the plurality of terminal voltages of the second stator winding to the load in the subsequent stage is provided, it is possible to supply the voltage obtained by smoothing the terminal voltage of the second stator winding to the load. . Therefore, the rectifier can be eliminated, and the wiring from the rotary electric machine to the load can be realized by direct current (or single phase) wiring. As a result, the structure of the rectifier can be simplified, the number of power wirings can be reduced, and the structure of the device can be further simplified and the cost can be reduced. In addition, as the number of the second stator windings is increased and the arrangement density is increased, the ripple rate of the maximum value circuit output can be reduced.

According to the third structure of the present invention, the second stator windings in the second structure are arranged at the same intervals and wound so that the voltages in the same direction are induced. In the configuration in which the winding directions of the wires are aligned, the lowest ripple rate can be realized with a relatively small number of second stator windings.

According to the fourth configuration of the present invention, at least one pair of the second stator windings in the second configuration are arranged so as to form an electrical angle of 360 ° and have opposite voltage directions. Since the winding is performed so as to induce, a lower ripple rate can be realized with a smaller number of second stator windings as compared with a configuration in which the winding directions of the second stator windings are aligned.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a first exemplary embodiment of the present invention.

FIG. 2 is a diagram showing an arrangement of auxiliary windings and an electrical angle in the first embodiment.

FIG. 3 is a timing chart showing a chopper circuit input voltage waveform in the first embodiment.

FIG. 4 is a layout diagram showing a configuration of a second exemplary embodiment of the present invention.

FIG. 5 is a layout diagram showing a configuration of a third exemplary embodiment of the present invention.

FIG. 6 is a layout diagram showing a configuration of a fourth exemplary embodiment of the present invention.

FIG. 7 is a layout diagram showing a configuration of a fifth embodiment of the present invention.

FIG. 8 is a timing chart showing a chopper circuit input voltage waveform according to the fifth embodiment.

FIG. 9 is a layout diagram showing a configuration of a sixth embodiment of the present invention.

FIG. 10 is a timing chart showing a chopper circuit input voltage waveform according to the sixth embodiment.

FIG. 11 is a layout diagram showing a configuration of a seventh embodiment of the present invention.

FIG. 12 is a timing chart showing a chopper circuit input voltage waveform according to the seventh embodiment.

FIG. 13 is a block diagram showing a system configuration of an application example of the present invention.

FIG. 14 is a block diagram showing a conventional technique.

[Explanation of symbols]

10 engine, 12A electric generator / generator (M /
G), 14, 14A rotor (permanent magnet), 16A main winding, 16Ba-16Bf auxiliary winding, 18 main wiring (three-phase), 20A, 28 inverter, 22A auxiliary wiring (single-phase), 24A rectifier, 26 Main battery, 30
Vehicle running electric motor, 32 auxiliary battery, 34 electric auxiliary device, 36 controller, 38 single-phase bridge, 40
Chopper circuit, 42, 42A, 42B maximum value circuit.

Claims (4)

[Claims] 1. A first stator winding that forms a multi-phase electric motor or a multi-phase generator by magnetically coupling a rotor to a rotor, and a generator that magnetically couples to a rotor. Two
A rotating electric machine comprising: a stator winding; and an output of the second stator winding is rectified by a rectifier at a subsequent stage and then supplied to a load. A rotating electric machine characterized in that the stator windings are arranged, interconnected and / or wound so that the in-phase combined value of the terminal voltage is supplied to the rectifier in the subsequent stage. 2. A rotor and a first stator winding forming a multi-phase electric motor or a multi-phase generator by magnetic coupling with the rotor, and a generator forming by magnetic coupling with the rotor. Two
A rotating electric machine comprising: a stator winding; and a plurality of the second stator windings, wherein the plurality of second stator windings are arranged and wound such that their terminal voltages have different phases. The rotating electric machine includes a maximum value circuit that supplies the highest voltage among the terminal voltages of the plurality of second stator windings to a load in the subsequent stage. 3. The rotating electric machine according to claim 2, wherein the plurality of second stator windings are arranged at the same intervals and wound so that voltages in the same direction are induced. Electric machinery. 4. The rotating electric machine according to claim 2, wherein at least one pair of the plurality of second stator windings is arranged so as to form an electrical angle of 360 °, and voltages in opposite directions are induced. A rotating electric machine characterized by being wound so as to be wound.