CN210111710U - Five-phase 5N/4N pole armature and excitation winding fault-tolerant electric excitation double salient motor - Google Patents
Five-phase 5N/4N pole armature and excitation winding fault-tolerant electric excitation double salient motor Download PDFInfo
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- CN210111710U CN210111710U CN201921230086.1U CN201921230086U CN210111710U CN 210111710 U CN210111710 U CN 210111710U CN 201921230086 U CN201921230086 U CN 201921230086U CN 210111710 U CN210111710 U CN 210111710U
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Abstract
The utility model relates to a five-phase 5N 4N utmost point armature and excitation winding fault-tolerant electric excitation doubly salient motor, crisscross around set armature winding and excitation winding on the stator pole of stator, have a stator pole that does not have the winding between every armature winding and the excitation winding, make armature winding and excitation winding disappearance overlap. Compared with the prior art, the utility model, there are one set of armature winding and excitation winding on the stator pole, and the even coiling of armature winding and excitation winding is on the stator pole, has a stator pole of no winding between every armature winding and the excitation winding, can reduce the mutual inductance between armature winding and the excitation winding, because there is the physics isolation in the stator of no winding of interval, has avoided the interturn short circuit between the looks with the looks, increases the fault tolerance of motor. Because the excitation windings are uniformly distributed and the distance between each phase of armature windings is the same, the armature windings output force is uniform, a symmetrical phase magnetic circuit is generated, and the electromagnetic force is balanced.
Description
Technical Field
The utility model relates to a biconvex pole motor, especially an electro-magnetic doubly salient pole motor.
Background
Doubly salient machines are a new type of integrated system that has emerged with the rapid development of power electronics and microelectronics. The double-salient-pole motor has the main advantages of simple structure, reliable work, light weight, small volume, low cost, high power density, high efficiency and extremely wide application prospect. The electromagnetic double salient pole motor is a novel motor which is provided on the basis of a double salient pole motor, the motor shell conveniently realizes the double functions of starting and generating electricity, and the motor shell is an ideal starting/generating machine of a novel power supply.
The electro-magnetic doubly salient motor has the characteristics that: 1 direct current excitation, no permanent magnet, low cost, and no demagnetization problem because of no permanent magnet. 2 the rotor is not provided with an armature winding and an excitation winding, is formed by laminating silicon steel sheets, has no coil and magnetic steel, and has simple and firm structure. All armature windings and excitation windings of the 3 electric excitation doubly salient motor are arranged on the stator, so that the motor is not easy to damage and is easy to dissipate heat. 4, the output voltage can be adjusted by adjusting the exciting current, so that the output voltage does not change along with the change of the load, a frequency converter is omitted, a diode uncontrolled rectifying circuit can be adopted, the circuit is obviously simplified, the reliability of the doubly salient motor is improved, and the cost is reduced.
The double salient pole motor is generally applied to a large airplane starting/generating system, new energy power generation, a vehicle driving system and a fuel pump system, and has the advantages of simple structure, reliable work and convenient direct current power generation and voltage regulation.
The excitation of the traditional doubly salient excitation motor generally adopts distributed excitation, and an excitation winding is wound on the stator poles of a plurality of doubly salient motors, so that the problem of asymmetric phase magnetic circuits exists, and the problem of uneven distribution of motor armature winding loss and rectifier bridge loss can be caused. Meanwhile, the motor rectification output voltage pulsation of the motor is increased. Therefore, the excitation windings are uniformly distributed on the stator pole, the positions of the excitation windings relative to the armature windings are the same, the output force of the armature windings is uniform, the symmetric phase magnetic circuit electromagnetic force is balanced, and the advantages of the traditional electro-magnetic doubly salient motor, such as convenient magnetic adjustment, simple structure, easy heat dissipation and high reliability are maintained.
Disclosure of Invention
The utility model discloses on traditional electro-magnetic double salient pole motor's basis, combine the body characteristic of double salient pole motor, five looks 5N 4N utmost point pivots and excitation winding isolated fault-tolerant electro-magnetic double salient pole motor in proper order have been proposed, armature winding and excitation winding even coiling are on the stator pole, there is a stator pole of no winding between every armature winding and the excitation winding, mutual inductance between armature winding and the excitation winding has been reduced, because the stator of no winding of interval, there is physical isolation between the looks, the turn-to-turn short circuit between the looks has been avoided, the fault tolerance of motor increases. Because the excitation windings are uniformly distributed and the distance between each phase of armature winding is the same, the output force of the armature windings is uniform, a symmetrical phase magnetic circuit is generated, the electromagnetic force is balanced, and the advantages of the traditional distributed excitation doubly salient motor, convenience in magnetic adjustment, low cost, and simple and reliable rotor structure are maintained. The foundation is laid for better utilizing the electric and power generation operating characteristics of the doubly salient motor.
The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:
a fault-tolerant electric excitation doubly salient motor with five-phase 5N/4N pole armature and excitation windings comprises a stator and a rotor, wherein sleeve armature windings and excitation windings are wound on stator poles of the stator in a staggered mode, a stator pole without windings is arranged between each armature winding and each excitation winding, the armature windings and the excitation windings are not overlapped, mutual inductance between the armature windings and the excitation windings is reduced, turn-to-turn short circuit between the armature windings and the excitation windings is avoided, and fault tolerance of the motor is improved.
Furthermore, the excitation winding and the armature winding are uniformly distributed on the stator pole, and because the excitation winding is uniformly distributed and the distance between each phase of armature winding is the same, the force exerted by the armature winding is uniform, a symmetrical phase magnetic circuit is generated, and the electromagnetic force is balanced.
Furthermore, one end of the armature winding is led out and connected together, and the other end of the armature winding is connected between the two diodes of the full-bridge circuit.
The utility model discloses a novel five looks 5N 4N (N is the positive integer) structure electro-magnetic synchronous machine takes above technical scheme, has following beneficial effect:
(1) turn-to-turn short circuit is avoided, and fault tolerance is greatly increased;
(2) the winding is simple to wind, easy to radiate and not easy to damage;
(3) the phase magnetic circuits are symmetrical, and the electric excitation is balanced;
(4) the wire diameter of the winding is increased, and the copper loss is reduced.
Drawings
FIG. 1 is a two-dimensional block diagram of an 20/16 configuration electrically excited synchronous machine;
FIG. 2 is a rectification circuit diagram of an 20/16 structure electrically excited synchronous motor;
FIG. 3 is a five-phase winding flux linkage simulation diagram;
FIG. 4 is a diagram of a five-phase winding back EMF simulation;
FIG. 5 is a graph of a rectified output voltage simulation;
main symbol names in the drawings: z is a load connected with the rectifying circuit; LA1, LB1, LC1, LD1 and LE1 are respectively the winding inductances of A phase, B phase, C phase, D phase and E phase of the electrically excited synchronous motor with a 20/16 structure; d1, D2, D3, D4, D5, D6, D7, D8, D9 and D10 are rectifier circuit diodes; EA1, EB1, EC1, ED1 and EE1 are respectively opposite potentials of an A phase, a B phase, a C phase, a D phase and an E phase of the electrically excited synchronous motor with the 20/16 structure; A. b, C, D, E are respectively the A phase, B phase, C phase, D phase and E phase armature windings of 20/16 concentrated excitation double-feed excitation synchronous motor; f is 20/16 electrically exciting the synchronous machine field winding.
Detailed Description
The utility model discloses a novel five-phase 5N/4N (N is the positive integer) fault-tolerant electric excitation doubly salient motor of structure, around having one set of armature winding and one set of excitation winding on the stator pole of this motor. One end of the armature winding is led out and connected together, the other end of the armature winding is connected between two diodes of a full-bridge circuit, the A-phase winding is connected between the positive end of the diode D1 and the negative end of the diode D8, the B-phase winding is connected between the positive end of the diode D2 and the negative end of the diode D7, the C-phase winding is connected between the positive end of the diode D3 and the negative end of the diode D6, and the D-phase winding is connected between the positive end of the diode D4 and the negative end of the diode D39. The armature winding and the excitation winding are uniformly wound on the stator poles, and a stator pole without a winding exists between each armature winding and each excitation winding. The mutual inductance between the armature winding and the excitation winding is reduced, and because a stator without windings is arranged at intervals, physical isolation exists between phases, turn-to-turn short circuit between the phases is avoided, and the fault tolerance of the motor is improved. Because the excitation windings are uniformly distributed and the distance between each phase of armature windings is the same, the armature windings output force is uniform, a symmetrical phase magnetic circuit is generated, and the electromagnetic force is balanced. And the advantages of the traditional distributed excitation doubly salient motor, convenient magnetic adjustment, low cost and simple and reliable rotor structure are maintained.
The utility model is suitable for a fault-tolerant electric excitation doubly salient motor of various 5N 4N (N is the positive integer) structure will be described in detail the utility model technical scheme for example with the electric excitation doubly salient motor of five looks 20/16 structures in the following combination of the attached drawing:
the utility model provides a plane structure of fault-tolerant electric excitation doubly salient motor of five looks 20/16 structures, as shown in FIG. 1, stator 1, rotor 2 are the doubly salient pole structure, let in exciting current in excitation winding 4, produce the main field in the motor is inside. The motor stator pole is provided with a set of armature winding 3 and excitation winding 4, one end of the armature winding 3 is led out and connected together, the other end of the armature winding is connected between two diodes of a full bridge circuit, an A-phase winding is connected between the positive end of a diode D1 and the negative end of a diode D8, a B-phase winding is connected between the positive end of a diode D2 and the negative end of a diode D7, a C-phase winding is connected between the positive end of a diode D3 and the negative end of a diode D6, and a D-phase winding is connected between the positive end of a diode D4 and the negative end of a. The armature winding 3 and the excitation winding 4 are uniformly wound on the stator poles, and a stator pole without a winding exists between each armature winding 3 and each excitation winding 4. The mutual inductance between the armature winding and the excitation winding is reduced, and because a stator without windings is arranged at intervals, physical isolation exists between phases, turn-to-turn short circuit between the phases is avoided, and the fault tolerance of the motor is improved. The motor has five-phase armature windings A, B, C, D, E, the negative poles of the five phases are X, Y, Z, W, M, and the winding mode of the armature windings is shown in figure 1. The armature winding 3 and the excitation winding 4 jointly form a novel double salient pole motor power generation system.
A rectification circuit of a power generation system corresponding to a 20/16-structure electrically-excited synchronous motor is shown in fig. 2, and is described by taking a full-bridge uncontrolled rectification circuit as an example, one end of an armature winding is led out and connected together, the other end of the armature winding is connected between two diodes of a full-bridge circuit, an a-phase winding is connected between the positive end of a diode D1 and the negative end of a diode D8, a B-phase winding is connected between the positive end of a diode D2 and the negative end of a diode D7, a C-phase winding is connected between the positive end of a diode D3 and the negative end of a diode D6, and a D-phase winding is connected between the positive end of a.
The initial position of the motor is shown in fig. 1, A, B, C, D, E five-phase flux linkage is shown in fig. 3, A, B, C, D, E five-phase reverse potential is shown in fig. 4, according to the connection mode of the windings and the diodes, A, B, C, D, E five-phase windings output electric energy to the load when the rotor poles slide into the corresponding stator poles, namely A, B, C, D, E five-phase windings output electric energy to the load when the reverse potential of the windings is negative, and fig. 5 is an unfiltered rectified output voltage waveform.
Compared with the prior art, the utility model, there are one set of armature winding and excitation winding on the stator pole of this motor. The armature winding and the excitation winding are uniformly wound on the stator poles, a stator pole without winding exists between each armature winding and each excitation winding, mutual inductance between the armature winding and the excitation winding can be reduced, and because a stator without winding is arranged at intervals, physical isolation exists between phases, turn-to-turn short circuit between the phases is avoided, and fault tolerance of the motor is improved. Because the excitation windings are uniformly distributed and the distance between each phase of armature windings is the same, the armature windings output force is uniform, a symmetrical phase magnetic circuit is generated, and the electromagnetic force is balanced. And the advantages of the traditional distributed excitation doubly salient motor, convenient magnetic adjustment, low cost and simple and reliable rotor structure are maintained.
The winding structure and the rectification mode are convenient to realize, simple in structure and good in application prospect.
Claims (3)
1. A five-phase 5N/4N pole armature and excitation winding fault-tolerant electric excitation doubly salient motor comprises a stator and a rotor, and is characterized in that: the stator poles of the stator are alternately wound with sets of armature windings and excitation windings, and a stator pole without windings is arranged between each armature winding and each excitation winding, so that the armature windings and the excitation windings are not overlapped, mutual inductance between the armature windings and the excitation windings is reduced, turn-to-turn short circuit between the armature windings and the excitation windings is avoided, and the fault tolerance of the motor is improved.
2. The five-phase 5N/4N pole armature and field winding fault-tolerant electrically-excited doubly-salient machine of claim 1, wherein: the excitation winding and the armature winding are uniformly distributed on the stator pole, and because the excitation winding is uniformly distributed and the distance between each phase of armature winding is the same, the force exerted by the armature winding is uniform, a symmetrical phase magnetic circuit is generated, and the electromagnetic force is balanced.
3. The five-phase 5N/4N pole armature and field winding fault-tolerant electrically-excited doubly-salient machine of claim 1, wherein: one end of the armature winding is led out and connected together, and the other end of the armature winding is connected between the two diodes of the full-bridge circuit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921230086.1U CN210111710U (en) | 2019-07-31 | 2019-07-31 | Five-phase 5N/4N pole armature and excitation winding fault-tolerant electric excitation double salient motor |
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| CN201921230086.1U CN210111710U (en) | 2019-07-31 | 2019-07-31 | Five-phase 5N/4N pole armature and excitation winding fault-tolerant electric excitation double salient motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417136A (en) * | 2019-07-31 | 2019-11-05 | 上海电力大学 | Five phase 5N/4N Polar armatures and the fault-tolerant electric excitation biconvex electrode electric machine of excitation winding |
| CN112636490A (en) * | 2020-11-20 | 2021-04-09 | 上海电力大学 | Three-phase 24/14-pole distributed electro-magnetic doubly-salient wind driven generator |
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2019
- 2019-07-31 CN CN201921230086.1U patent/CN210111710U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110417136A (en) * | 2019-07-31 | 2019-11-05 | 上海电力大学 | Five phase 5N/4N Polar armatures and the fault-tolerant electric excitation biconvex electrode electric machine of excitation winding |
| CN112636490A (en) * | 2020-11-20 | 2021-04-09 | 上海电力大学 | Three-phase 24/14-pole distributed electro-magnetic doubly-salient wind driven generator |
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