CN110299770A - Four-phase 4N/3N pole winding isolation type fault-tolerant electric excitation double salient motor - Google Patents
Four-phase 4N/3N pole winding isolation type fault-tolerant electric excitation double salient motor Download PDFInfo
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- CN110299770A CN110299770A CN201910700223.1A CN201910700223A CN110299770A CN 110299770 A CN110299770 A CN 110299770A CN 201910700223 A CN201910700223 A CN 201910700223A CN 110299770 A CN110299770 A CN 110299770A
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- 238000004804 winding Methods 0.000 title claims abstract description 112
- 230000005284 excitation Effects 0.000 title claims abstract description 73
- 238000002955 isolation Methods 0.000 title description 4
- 238000010248 power generation Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 8
- 230000001360 synchronised effect Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/12—Stationary parts of the magnetic circuit
- H02K1/14—Stator cores with salient poles
- H02K1/146—Stator cores with salient poles consisting of a generally annular yoke with salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/18—Windings for salient poles
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Synchronous Machinery (AREA)
Abstract
The invention relates to a four-phase 4N/3N pole winding isolated fault-tolerant electric excitation doubly salient motor, which comprises a stator and a rotor, wherein armature windings and excitation windings are wound on stator poles of the stator alternately, and a stator pole without windings is arranged between adjacent excitation windings to physically isolate the adjacent excitation windings; armature windings, excitation windings and stator poles without windings on the stator are uniformly arranged on the stator poles; 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 motor can generate a symmetrical phase magnetic circuit, the electromagnetic force is balanced, the mutual inductance between the armature winding and the excitation winding is reduced, and because a stator without a winding is arranged at intervals, the phase and the phase are physically isolated, the turn-to-turn short circuit between the phase and the phase is avoided, the fault tolerance of the motor is improved, and the phase current is symmetrical. And a foundation is laid for better utilization of the power generation operation characteristics of the doubly salient motor.
Description
Technical field
The present invention relates to a kind of double salient-pole electric machine, especially a kind of isolated fault-tolerant electric excitation biconvex electrode electric machine.
Background technique
Electric excitation biconvex electrode electric machine, it is not only simple in structure, and controls flexibly, can be convenient by changing exciting current
Ground adjusts air-gap field intensity, can both make generator, can also be used as motor running, since proposition, has obtained extensive
Concern, in Automobile drive and onboard system, aircraft starting/generating system, the occasions such as wind-power electricity generation are widely applied.
Doubly salient permanent magnet motor is obtained on the basis of switched reluctance machines, permanent magnet is as excitation source.It is double by permanent magnetism
Salient-pole machine is developed to electric excitation biconvex electrode electric machine, and electric excitation biconvex electrode electric machine remains rotor structure of switching reluctance dynamo letter
Single, low in cost and convenient adjustable magnetic advantage.The characteristics of electric excitation biconvex electrode electric machine: 1 electrical excitation uses DC excitation, adjustable magnetic side
Just, doubly salient permanent magnet motor is compared, permanent magnet is not present, the cost of motor is reduced, because without permanent magnet being not present
The problem of demagnetization.2 armature winding and excitation winding all concentrate in stator poles, and without winding on rotor pole, rotor is by silicon steel
Piece is overrided to form, and without coil and magnet steel, electric machine structure is simple and reliable.All armature winding of 3 electric excitation biconvex electrode electric machines and
Excitation winding is all on stator, is suitble to run at high speed, winding is easy to radiate close to shell.4 electric excitation biconvex electrode electric machines are encouraged
Magnetically condition is convenient, changes DC excitation power size, that is, adjustable output voltage, keeps constant output voltage, eliminate frequency conversion
Device, dispatch from foreign news agency line structure is simple, improves the reliability of double salient-pole electric machine, reduces costs.
Double salient-pole electric machine is generally all applied in big aircraft starting/generating system, generation of electricity by new energy, vehicle drive system and combustion
Oil pump systems, and there is multiphase redundancy fault-tolerant ability, it is suitable for aerospace, automobile, wind-power electricity generation etc. is to reliability, power supply
The high field of quality requirement.
The excitation of traditional double-salient-pole electro-magnetic motor is generally adopted by distribution excitation, and excitation winding is wound on multiple biconvexs
In the stator poles of pole motor, there are the asymmetric problems of phase magnetic circuit, will lead to armature winding loss and rectifier bridge loss point
The problem of cloth unevenness.At the same time, the motor rectifier output voltage pulsation of motor is also increased.And here without using this side
It is alternately present in formula, armature winding and excitation winding stator poles, is not overlapped, does not interfere with each other, excitation winding and armature winding
It is evenly distributed in stator poles, generates symmetrical phase magnetic circuit, electromagnetic force equilibrium.And maintain traditional electric excitation biconvex electrode electricity
Machine, adjustable magnetic is convenient, and structure is simple, is easy to radiate, reliable high advantage.
Summary of the invention
The present invention, in conjunction with the ontological property of double salient-pole electric machine, proposes on the basis of traditional electric excitation biconvex electrode electric machine
A kind of novel four phases 4N/3N (N is positive integer) isolated structure of winding fault-tolerant electric excitation biconvex electrode electric machine, the motor generate
Symmetrical phase magnetic circuit, electromagnetic force equilibrium reduce armature winding, the mutual inductance between excitation winding, because one, interval is without winding
There is physical isolation between phase and phase, avoid turn-to-turn short circuit between phase and phase in stator, increase the fault-tolerance of motor, mutually electricity
Stream is symmetrical.Preferably to be laid a good foundation using double salient-pole electric machine generator operation characteristic.
The present invention to achieve the above object, adopts the following technical scheme that
A kind of four isolated fault-tolerant electric excitation biconvex electrode electric machines of the pole phase 4N/3N winding, including stator, rotor, the stator
Stator poles on be alternately wound with armature winding and excitation winding, between adjacent excitation winding, be spaced a stator without winding
Pole makes to be physically isolated between adjacent excitation winding, reduces alternate mutual inductance, avoid turn-to-turn short circuit, increases the fault-tolerance of motor, produces
Raw symmetrical phase magnetic circuit, makes electromagnetic force equilibrium.
Further, the armature winding on the stator, excitation winding, no wound stator pole are evenly arranged in stator poles.
Further, the armature winding one end draw be connected together, it is another terminate at two diodes of full-bridge circuit it
Between.
The present invention takes above technical scheme, has the advantages that
(1) turn-to-turn short circuit is avoided, fault-tolerance greatly increases；
(2) winding technique is simple, is easy to radiate, be hardly damaged；
(3) phase magnetic circuit is symmetrical, electrical excitation balance；
(4) increase winding wire diameter, reduce copper loss.
Detailed description of the invention
Fig. 1 is 12/9 structure electric excitation synchronous motor two-dimensional structure figure；
Fig. 2 is 12/9 structure electric excitation synchronous motor rectification circuit figure；
Fig. 3 is four phase winding magnetic linkage analogous diagrams；
Tetra- phase winding counter electromotive force analogous diagram of Fig. 4；
Primary symbols title in figure: the load that Z is connect by rectification circuit；LA1, LB1, LC1, LD1 are respectively 12/9 knot
The A phase, B phase, C phase of structure electric excitation synchronous motor, D phase winding inductance；D1, D2, D3, D4, D5, D6, D7, D8 are rectification circuit
Diode；EA1, EB1, EC1, ED1 are respectively A phase, B phase, C phase, the D opposite potential of 12/9 structure electric excitation synchronous motor；A,
B, C, D are respectively the A phase, B phase, C phase, D phase armature winding of 12/9 electric excitation synchronous motor；F is 12/9 electric excitation synchronous motor
Excitation winding.
Specific embodiment
The invention discloses a kind of fault-tolerant electric excitation dual protrusions of novel four phases 4N/3N (N is positive integer) isolated structure of winding
Pole motor, the motor stator extremely on have a set of armature winding and excitation winding, excitation winding is evenly distributed in armature winding
In stator poles, without winding on rotor pole.According to armature winding, excitation winding, three kinds of no wound stator pole situation in stator poles
Equably it is arranged in stator poles.One end of armature winding draws and is connected together, another to terminate at two diodes of full-bridge circuit
Between, A phase winding connects between diode D1 anode and diode D8 negative terminal, and B phase winding connects in diode D2 anode and two poles
Between pipe D7 negative terminal, C phase winding is connect between diode D3 anode and diode D6 negative terminal, D phase winding connect diode D4 just
Between end and diode D5 negative terminal.Traditional centralized excitation or distributed excitation mode, are wound with simultaneously in a stator poles
Armature winding and excitation winding, it is larger for spacing between each armature winding compared to traditional double-salient-pole pole motor, reduce
Mutual inductance between armature winding.For similarly, the mutual inductance between excitation winding reduces.Because being spaced a stator without winding,
There is physical isolation between phase and phase, avoids turn-to-turn short circuit between phase and phase, increase the fault-tolerance of motor.Excitation winding is equal
Even is distributed in stator poles, contributes for each armature winding identical, generates symmetrical phase magnetic circuit, and electromagnetic force is flat
Weighing apparatus.And tradition distribution excitation biconvex electrode electric machine is maintained, adjustable magnetic is convenient, low in cost, the simple and reliable advantage of rotor structure.
Motor in the present invention generates symmetrical phase magnetic circuit, electromagnetic force equilibrium, and mutual inductance reduces, and greatly increases the fault-tolerance of motor, mutually electricity
Stream is symmetrical.
The present invention is suitable for the fault-tolerant electric excitation biconvex electrode electric machine of the isolated structure of various 4N/3N (N is positive integer) winding,
Inventive technique scheme is described in detail by taking the electric excitation biconvex electrode electric machine of four phases, 12/9 structure as an example below in conjunction with attached drawing:
The planar structure of the electric excitation biconvex electrode electric machine of four phases, 12/9 structure in the present invention is as shown in Figure 1, stator 1, turn
Son 3 is double-salient-pole structure, is passed through exciting current in excitation winding 4, main field is generated inside motor.It armature winding 3 and encourages
Magnetic winding 4 is evenly distributed in stator poles.According to armature winding 3, excitation winding 4, three kinds of no wound stator pole in stator poles
Situation is equably arranged in stator poles, larger for spacing between each armature winding compared to traditional double salient-pole electric machine,
Reduce the mutual inductance between armature winding.One end of armature winding draws and is connected together, another to terminate at two two poles of full-bridge circuit
Between pipe, A phase winding is connect between diode D1 anode and diode D8 negative terminal, and B phase winding connects in diode D2 anode and two
Between pole pipe D7 negative terminal, C phase winding is connect between diode D3 anode and diode D6 negative terminal, and D phase winding connects in diode D4
Between anode and diode D5 negative terminal.Traditional centralized excitation or distributed excitation mode, in a stator poles simultaneously around
There are armature winding and excitation winding, it is larger for spacing between each armature winding compared to traditional double-salient-pole pole motor, subtract
Mutual inductance between small armature winding.For similarly, the mutual inductance between excitation winding reduces, because one, interval is determined without winding
There is physical isolation between phase and phase, avoid turn-to-turn short circuit between phase and phase, increase the fault-tolerance of motor in son.Excitation around
Group is evenly distributed in stator poles, is contributed for each armature winding identical, and symmetrical phase magnetic circuit, electromagnetic force are generated
Balance.And tradition distribution excitation biconvex electrode electric machine is maintained, adjustable magnetic is convenient, low in cost, simple and reliable excellent of rotor structure
Point.This paper motor is A, B, C, D respectively with the presence of four phase armature winding.The cathode of this four phase is X, Y, W, D respectively.Armature around
The winding mode of group is as shown in Figure 1.Armature winding and excitation winding collectively form novel doubly-salient electric power generation system.
The rectification circuit of electricity generation system corresponding with the fault-tolerant electric excitation biconvex electrode electric machine of 12/9 structure is as shown in Fig. 2, originally
Text is illustrated by taking full-bridge uncontrollable rectifier circuit as an example, and one end of armature winding, which is drawn, to be connected together, another to terminate at full-bridge electricity
Between the diode of two, road, A phase winding is connect between diode D1 anode and diode D8 negative terminal, and B phase winding connects in diode
Between D2 anode and diode D7 negative terminal, C phase winding is connect between diode D3 anode and diode D6 negative terminal, and D phase winding connects
Between diode D4 anode and diode D5 negative terminal.
The initial position of motor as shown in Figure 1, tetra- phase magnetic linkage of A, B, C, D as shown in figure 3, tetra- opposite potential of A, B, C, D such as
Shown in Fig. 4, according to winding with the connection type of diode it is found that tetra- phase winding of A, B, C, D is in the corresponding stator of rotor pole slide-in
Electric energy is exported to load when pole, i.e., exports electric energy to load when tetra- phase winding back-emf of A, B, C, D is negative.
It is convenient that this winding construction and rectifier system are realized, structure is simple, has a good application prospect.
Claims (3)
1. a kind of four isolated fault-tolerant electric excitation biconvex electrode electric machines of the pole phase 4N/3N winding, including stator, rotor, it is characterised in that:
Alternately be wound with armature winding and excitation winding in the stator poles of the stator, between adjacent excitation winding, be spaced a nothing around
The stator poles of group, make to be physically isolated between adjacent excitation winding, reduce alternate mutual inductance, avoid turn-to-turn short circuit, increase motor
Fault-tolerance generates symmetrical phase magnetic circuit, makes electromagnetic force equilibrium.
2. the isolated fault-tolerant electric excitation biconvex electrode electric machine of the pole four phases 4N/3N according to claim 1 winding, feature exist
In: the armature winding on the stator, excitation winding, no wound stator pole are evenly arranged in stator poles.
3. the isolated fault-tolerant electric excitation biconvex electrode electric machine of the pole four phases 4N/3N according to claim 1 winding, feature exist
In: one end of the armature winding draws and is connected together, another to terminate between two diodes of full-bridge circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910700223.1A CN110299770A (en) | 2019-07-31 | 2019-07-31 | Four-phase 4N/3N pole winding isolation type fault-tolerant electric excitation double salient motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910700223.1A CN110299770A (en) | 2019-07-31 | 2019-07-31 | Four-phase 4N/3N pole winding isolation type fault-tolerant electric excitation double salient motor |
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| CN110299770A true CN110299770A (en) | 2019-10-01 |
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|---|---|---|---|
| CN201910700223.1A Pending CN110299770A (en) | 2019-07-31 | 2019-07-31 | Four-phase 4N/3N pole winding isolation type fault-tolerant electric excitation double salient motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112910114A (en) * | 2021-01-25 | 2021-06-04 | 上海电力大学 | Four-phase 16/18-pole hybrid excitation fault-tolerant reluctance generator |
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| CN109167497A (en) * | 2018-09-18 | 2019-01-08 | 上海电力学院 | A kind of four mutually three-winding electric excitation biconvex electrode electric machines |
| CN109742907A (en) * | 2018-11-21 | 2019-05-10 | 南京航空航天大学 | A kind of DC start electricity generation system and control method based on Multiple coil electric excitation biconvex electrode electric machine |
| CN210380400U (en) * | 2019-07-31 | 2020-04-21 | 上海电力大学 | Four-phase 4N/3N pole winding isolation type fault-tolerant electric excitation double salient motor |
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2019
- 2019-07-31 CN CN201910700223.1A patent/CN110299770A/en active Pending
Patent Citations (12)
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|---|---|---|---|---|
| CN101414775A (en) * | 2008-12-02 | 2009-04-22 | 江苏大学 | Freestanding bi-convex-pole fault-tolerance motor |
| CN103023269A (en) * | 2012-08-30 | 2013-04-03 | 江苏大学 | Single-pole flux reverse permanent magnet linear motor |
| CN203368275U (en) * | 2013-06-03 | 2013-12-25 | 东南大学 | Open winding hybrid excitation motor |
| CN103944288A (en) * | 2014-04-28 | 2014-07-23 | 南京航空航天大学 | Magnetic-circuit-complementation-type stator electrically excited synchronous motor |
| CN104242495A (en) * | 2014-09-16 | 2014-12-24 | 广东威灵电机制造有限公司 | Motor stator and motor with motor stator |
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| CN109038871A (en) * | 2018-08-31 | 2018-12-18 | 南京埃克锐特机电科技有限公司 | A kind of on-off reluctance motor with sectional rotor |
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| CN109167497A (en) * | 2018-09-18 | 2019-01-08 | 上海电力学院 | A kind of four mutually three-winding electric excitation biconvex electrode electric machines |
| CN109742907A (en) * | 2018-11-21 | 2019-05-10 | 南京航空航天大学 | A kind of DC start electricity generation system and control method based on Multiple coil electric excitation biconvex electrode electric machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112910114A (en) * | 2021-01-25 | 2021-06-04 | 上海电力大学 | Four-phase 16/18-pole hybrid excitation fault-tolerant reluctance generator |
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