CN101789641A - Electro-magnetic flux switching motor - Google Patents
Electro-magnetic flux switching motor Download PDFInfo
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- CN101789641A CN101789641A CN 201010120388 CN201010120388A CN101789641A CN 101789641 A CN101789641 A CN 101789641A CN 201010120388 CN201010120388 CN 201010120388 CN 201010120388 A CN201010120388 A CN 201010120388A CN 101789641 A CN101789641 A CN 101789641A
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Abstract
本发明公开了一种电励磁磁通切换电机，属电励磁电机领域。包括凸极定子、励磁绕组、电枢绕组和凸极转子，定子凸极为U型定子铁块，每两个U型定子铁块之间的空隙嵌入条形导磁体，上述导磁体相长度小于U型定子铁块的U型臂长，在导磁体上沿电机径向方向缠绕励磁绕组。与导磁体相连的两个U型臂上缠绕电枢绕组。本发明在维持磁通切换电机空载定子磁链正弦度高、空载定子磁链波形为双极性的的基础上，使得空载气隙磁场完全受励磁电流的调节，磁场调节能力强，克服了永磁磁通切换电机气隙磁场难以调节的缺点。
The invention discloses an electric excitation magnetic flux switching motor, which belongs to the field of electric excitation motors. It includes a salient pole stator, an excitation winding, an armature winding and a salient pole rotor. The salient pole of the stator is a U-shaped stator iron block, and a strip-shaped magnetizer is embedded in the gap between every two U-shaped stator iron blocks. The phase length of the above-mentioned magnetizer is less than U The U-shaped arm of the type stator iron block is long, and the excitation winding is wound on the magnetizer along the radial direction of the motor. Armature windings are wound on two U-shaped arms connected to the magnetizer. On the basis of maintaining the high sine degree of the no-load stator flux linkage of the flux switching motor and the bipolar waveform of the no-load stator flux linkage, the invention makes the no-load air-gap magnetic field completely regulated by the excitation current, and has strong magnetic field adjustment ability. It overcomes the disadvantage that the air gap magnetic field of the permanent magnet flux switching motor is difficult to adjust.
Description
Technical field
The present invention relates to a kind of electro-magnetic flux switching motor, belong to the electro-magnetic motor field.
Background technology
In machine field, magneto has absolute advantage aspect efficient, power density, the torque density, more suitable to the occasion of volume and power requirement harshness.But its permanent magnet places on the rotor, high-power/and there are the following problems during wide rotating speed operation: and 1, centrifugal force is bigger during high speed rotating, must protect permanent magnet; 2, permanent magnet heat radiation difficulty; 3, magnetic field of permanent magnet and armature field are cascaded structure, and it is bigger that permanent magnet is influenced by armature field, when serious irreversible demagnetization can take place.
The switched reluctance machines stator and rotor are biconvex electrode structures, and no permanent magnet does not have winding yet on the rotor, and its rotor structure is the simplest.High voltage direct current switched reluctance machines starting/generating system also is the focus that Chinese scholars is paid close attention to and studied always, U.S. GE and Sund strand company beginning in 1985 joint research and development 270V high voltage direct current switched reluctance machines starting/generating system (30kw) under the subsidy of USAF, this system now is applied among the up-to-date Joint Strike Fighter F35 of U.S.'s exploitation, and it is to think the 270V high voltage direct current starting/generating system that performance is best at present in the world.
Switched reluctance machines is owing to be half period work, and power of motor density will be lower than magneto.Doubly salient permanent magnet motor, electric excitation biconvex electrode electric machine can be realized the complete period operation of motor by adding the second cover magnetic field, have improved the power density of motor.But the magnetic linkage waveform of double salient-pole electric machine is a unipolarity, and the utilance of motor material is not high, and in addition, the counter potential waveform of double salient-pole electric machine is rule inadequately, if adopt not control rectifying circuit of diode, power factor is lower when being operated in generating state.
The permanent magnet flux switching motor that belongs to the stator permanent-magnet motor with doubly salient permanent magnet motor can be regarded common switched reluctance machines as and slot on stator tooth on structure, inserts permanent magnet.Its rotor structure is identical with switched reluctance machines; From counter potential waveform, double polarity sine waveform back-emf is identical with the BLAC motor, so its power density is greater than switched reluctance machines; From the magnetic linkage waveform, permanent magnet flux switching motor magnetic linkage waveform is a bipolarity, and the utilance of motor material will be higher than doubly salient permanent magnet motor, electric excitation biconvex electrode electric machine.
In sum, the characteristics of permanent magnet flux switching motor are as follows: 1, permanent magnet places on the stator, is easy to cooling, is not subjected to centrifugal force; 2, distinctive " poly-magnetic " effect makes motor also can obtain higher air gap flux density when adopting the lower permanent magnet of coercive force; 3, rotor structure is simple, is easy to high-speed cruising; 4, magnetic field of permanent magnet and armature field are parallel-connection structure, and it is little that permanent magnet is influenced by armature field, and weak magnetic energy power is better than the rotor permanent-magnetic electric machine; 5, motor adopts centralized winding, and is simple in structure, and the end copper loss is little, the electric efficiency height; 6, torque density and power density are better than doubly salient permanent magnet motor and rotor permanent-magnetic electric machine.
But on essence, permanent magnet flux switching motor belongs to the permanent magnet excitation motor, and air-gap field is difficult to regulate, and is difficult to realize the wide speed range operation of motor.
Summary of the invention
The present invention regulates problem and proposes a kind of electro-magnetic flux switching motor in order to solve the flux switch motor air-gap field.
The present invention adopts following technical scheme for achieving the above object:
Electro-magnetic flux switching motor of the present invention, comprise salient pole stator, armature winding, excitation winding and field spider, it is characterized in that: the salient pole stator is combined by U type stator iron block, the bar shaped magnetic conductor of same number, embed a bar shaped magnetic conductor between per two U type stator iron blocks, the length of bar shaped magnetic conductor is less than the length of U type stator iron block U type arm; Its length direction of bar shaped magnetic conductor upper edge twines magnet exciting coil, and magnet exciting coil is concentrated winding, and magnet exciting coil is composed in series single-phase excitation winding; Twine on the adjacent U type arm of two adjacent U type stator iron blocks and concentrate armature coil, armature coil is with the sequential loop setting of A phase, B phase, C phase, wherein A phase, B connect respectively in proper order successively with C armature coil mutually mutually, and excitation winding pole coil is vertical mutually with the concentrated armature coil axis direction of armature winding.
Electro-magnetic flux switching motor, comprise salient pole stator, armature winding, excitation winding and field spider, the salient pole stator is combined by U type stator iron block, the bar shaped magnetic conductor of same number, embed a bar shaped magnetic conductor between per two U type stator iron blocks, the length of bar shaped magnetic conductor is less than the length of U type stator iron block U type arm; Adjacent bar magnetic conductor top or lower space are twined magnet exciting coil on U type stator iron block, and magnet exciting coil is concentrated winding, and magnet exciting coil is composed in series single-phase excitation winding; Twine on the adjacent U type arm of two adjacent U type stator iron blocks and concentrate armature coil, armature coil is with the sequential loop setting of A phase, B phase, C phase, wherein A phase, B connect respectively in proper order successively with C armature coil mutually mutually, and the concentrated armature coil axis direction of excitation winding pole coil and armature winding is radial direction.
Fixed/rotor the number of teeth of described electro-magnetic flux switching motor cooperates as follows: 36/35,36/37,30/29,30/31,24/23,24/25,18/17,18/19,12/9,12/11,12/13,8/7,8/9,6/5,6/7.
Electro-magnetic flux switching motor of the present invention is by replacing permanent magnet with magnetic conductor, and the length that suitably reduces magnetic conductor to be placing excitation winding pole coil, do not increasing motor volume, do not increasing the adjusting that can realize motor gas-gap magnetic field under the situation of electric machine structure complexity.The bar shaped magnetic conductor has reduced the magnetic resistance of excitation field magnetic circuit as the part of excitation field magnetic circuit, has improved the exciting current utilance.The magnetic flux axis of motor excitation winding and the magnetic flux axis of armature winding are orthogonal, excitation winding is when regulating the air-gap field amplitude, its magnetic structure is consistent with the magnetic structure of magnetic field of permanent magnet in the permanent magnet flux switching motor, guaranteed that electro-magnetic flux switching motor has identical high sinusoidal degree with the stator magnetic linkage and the back-emf of permanent magnet flux switching motor, the exciting current utilance is higher simultaneously.The present invention has wide practical use in interchange wide-range-timing occasion.
Description of drawings
Fig. 1 is a structural section schematic diagram of the present invention, the number in the figure title: 1, bar shaped magnetic conductor, 2, U type stator iron block, 3, field spider, 4, excitation winding.
Fig. 2 is the variation topology 1 of electro-magnetic flux switching motor of the present invention.
Fig. 3 is the variation topology 2 of electro-magnetic flux switching motor of the present invention.
Embodiment
Be elaborated below in conjunction with the technical scheme of accompanying drawing to invention:
As shown in Figure 1, a kind of electro-magnetic flux switching motor, comprise salient pole stator, armature winding, excitation winding and field spider 3, wherein: the salient pole stator is combined by 2,12 bar shaped magnetic conductors 1 of 12 U type stator iron blocks, embed a bar shaped magnetic conductor 1 between per two U type stator iron blocks 2, bar shaped magnetic conductor 1 length is less than the U type arm lengths of stator iron block 2, so that twine magnet exciting coil on bar shaped magnetic conductor 1; Magnet exciting coil is concentrated winding, and 12 magnet exciting coils are composed in series single-phase excitation winding successively from beginning to end; Twine on the adjacent U type arm of two adjacent U type stator iron blocks 2 and concentrate armature coil, first concentrates armature coil A1 and the 3rd to concentrate armature coil A3 radially relative, second concentrates armature coil A2 and the 4th to concentrate armature coil A4 radially relative, first concentrates armature coil A1, second concentrates armature coil A2, the 3rd concentrates armature coil A3 and the 4th to concentrate armature coil A4 to form A armature winding mutually in head and the tail series connection back successively, the 5th concentrates armature coil B1 and the 7th to concentrate armature coil B3 radially relative, the 6th concentrates armature coil B2 and the 8th to concentrate armature coil B4 radially relative, the 5th concentrates armature coil B1, the 6th concentrates armature coil B2, the 7th concentrates armature coil B3 and the 8th to concentrate armature coil B4 to form B armature winding mutually in head and the tail series connection back successively, the 9th concentrates armature coil C1 and the 11 to concentrate armature coil C3 radially relative, the tenth concentrates armature coil C2 and the 12 to concentrate armature coil C4 radially relative, the 9th concentrates armature coil C1, the tenth concentrates armature coil C2, the 11 concentrates armature coil C3 and the 12 to concentrate armature coil C4 to form C armature winding mutually in head and the tail series connection back successively, and excitation winding pole coil is vertical mutually with the concentrated armature coil axis direction of armature winding.
When excitation winding is switched on, when field spider 3 during at diverse location, direction and size that the magnetic flux that exciting current produces passes each concentrated armature coil all can change, the magnetic linkage of armature winding institute linkage is a bipolarity, every phase armature winding back-emf is that bipolarity and sinusoidal degree are higher, is the size of scalable air-gap field by the size of regulating exciting current.The amplitude of unloaded stator magnetic linkage is directly proportional with the size of exciting current.
Shown in Fig. 2 or 3, electro-magnetic flux switching motor, comprise salient pole stator, armature winding, excitation winding and field spider 3, the salient pole stator is combined by U type stator iron block 2, the bar shaped magnetic conductor 1 of same number, embed a bar shaped magnetic conductor between per two U type stator iron blocks, the length of bar shaped magnetic conductor is less than the length of U type stator iron block U type arm; Adjacent bar magnetic conductor top or lower space are twined magnet exciting coil on U type stator iron block, and magnet exciting coil is concentrated winding, and magnet exciting coil is composed in series single-phase excitation winding; Twine on the adjacent U type arm of two adjacent U type stator iron blocks and concentrate armature coil, armature coil is with the sequential loop setting of A phase, B phase, C phase, wherein A phase, B connect respectively in proper order successively with C armature coil mutually mutually, and the concentrated armature coil axis direction of excitation winding pole coil and armature winding is radial direction.
Claims (3)
1. electro-magnetic flux switching motor, comprise salient pole stator, armature winding, excitation winding and field spider (3), it is characterized in that: the salient pole stator is combined by U type stator iron block (2), the bar shaped magnetic conductor (1) of same number, embed a bar shaped magnetic conductor between per two U type stator iron blocks, the length of bar shaped magnetic conductor is less than the length of U type stator iron block U type arm; Its length of bar shaped magnetic conductor upper edge is radially twined magnet exciting coil, and magnet exciting coil is concentrated winding, and magnet exciting coil is composed in series single-phase excitation winding; Twine on the adjacent U type arm of two adjacent U type stator iron blocks and concentrate armature coil, armature coil is with the sequential loop setting of A phase, B phase, C phase, wherein A phase, B connect respectively in proper order successively with C armature coil mutually mutually, and excitation winding pole coil is vertical mutually with the concentrated armature coil axis direction of armature winding.
2. electro-magnetic flux switching motor, comprise salient pole stator, armature winding, excitation winding and field spider (3), it is characterized in that: the salient pole stator is combined by U type stator iron block (2), the bar shaped magnetic conductor (1) of same number, embed a bar shaped magnetic conductor between per two U type stator iron blocks, the length of bar shaped magnetic conductor is less than the length of U type stator iron block U type arm; Adjacent bar magnetic conductor top or lower space are twined magnet exciting coil on U type stator iron block, and magnet exciting coil is concentrated winding, and magnet exciting coil is composed in series single-phase excitation winding; Twine on the adjacent U type arm of two adjacent U type stator iron blocks and concentrate armature coil, armature coil is with the sequential loop setting of A phase, B phase, C phase, wherein A phase, B connect respectively in proper order successively with C armature coil mutually mutually, and the concentrated armature coil axis direction of excitation winding pole coil and armature winding is radial direction.
3. electro-magnetic flux switching motor according to claim 1 and 2 is characterized in that: the fixed/rotor number of teeth of described electro-magnetic flux switching motor cooperates as follows: 36/35,36/37,30/29,30/31,24/23,24/25,18/17,18/19,12/9,12/11,12/13,8/7,8/9,6/5,6/7.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010120388 CN101789641A (en) | 2010-03-09 | 2010-03-09 | Electro-magnetic flux switching motor |
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| CN 201010120388 CN101789641A (en) | 2010-03-09 | 2010-03-09 | Electro-magnetic flux switching motor |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005837A (en) * | 2010-11-23 | 2011-04-06 | 东南大学 | Magnetic flux-switching generator |
| CN102358208A (en) * | 2011-08-18 | 2012-02-22 | 东南大学 | Electric driving system for electric vehicle and control method of electric driving system |
| CN102412691A (en) * | 2011-11-01 | 2012-04-11 | 何嘉颖 | Single-phase magnetic-flux switching-type variable reluctance motor |
| CN102570648A (en) * | 2012-02-14 | 2012-07-11 | 上海电机学院 | Electro-excitation flux reversing motor |
| CN102843008A (en) * | 2012-09-07 | 2012-12-26 | 南京航空航天大学 | Parallel type mixed excitation alternating-current generator |
| EP2777137A2 (en) * | 2011-11-10 | 2014-09-17 | Moteurs Leroy-Somer | Flux-switching electrical machine |
| CN110089007A (en) * | 2016-12-20 | 2019-08-02 | 大金工业株式会社 | Rotating electric machine |
| CN113067446A (en) * | 2021-05-20 | 2021-07-02 | 河北工业大学 | Double-modularization hybrid excitation flux switching motor |
| CN114079328A (en) * | 2020-08-10 | 2022-02-22 | 中车株洲电力机车研究所有限公司 | Mixed excitation axial flux motor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101247065A (en) * | 2008-03-26 | 2008-08-20 | 南京航空航天大学 | Direct drive electric excitation doubly salient fault tolerant wind turbine |
| CN101510701A (en) * | 2009-03-03 | 2009-08-19 | 南京航空航天大学 | Parallel type mixing excitation switch magnetic linkage motor |
| CN101552497A (en) * | 2009-05-14 | 2009-10-07 | 浙江大学 | A mixed excitation biconvex pole motor T |
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2010
- 2010-03-09 CN CN 201010120388 patent/CN101789641A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101247065A (en) * | 2008-03-26 | 2008-08-20 | 南京航空航天大学 | Direct drive electric excitation doubly salient fault tolerant wind turbine |
| CN101510701A (en) * | 2009-03-03 | 2009-08-19 | 南京航空航天大学 | Parallel type mixing excitation switch magnetic linkage motor |
| CN101552497A (en) * | 2009-05-14 | 2009-10-07 | 浙江大学 | A mixed excitation biconvex pole motor T |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102005837B (en) * | 2010-11-23 | 2012-05-30 | 东南大学 | A magnetic flux switching generator |
| CN102005837A (en) * | 2010-11-23 | 2011-04-06 | 东南大学 | Magnetic flux-switching generator |
| CN102358208B (en) * | 2011-08-18 | 2013-10-30 | 东南大学 | Electric driving system for electric vehicle and control method of electric driving system |
| CN102358208A (en) * | 2011-08-18 | 2012-02-22 | 东南大学 | Electric driving system for electric vehicle and control method of electric driving system |
| CN102412691A (en) * | 2011-11-01 | 2012-04-11 | 何嘉颖 | Single-phase magnetic-flux switching-type variable reluctance motor |
| EP2777137A2 (en) * | 2011-11-10 | 2014-09-17 | Moteurs Leroy-Somer | Flux-switching electrical machine |
| CN102570648A (en) * | 2012-02-14 | 2012-07-11 | 上海电机学院 | Electro-excitation flux reversing motor |
| CN102843008A (en) * | 2012-09-07 | 2012-12-26 | 南京航空航天大学 | Parallel type mixed excitation alternating-current generator |
| CN110089007A (en) * | 2016-12-20 | 2019-08-02 | 大金工业株式会社 | Rotating electric machine |
| CN110089007B (en) * | 2016-12-20 | 2021-05-07 | 大金工业株式会社 | Rotary motor |
| US11201529B2 (en) | 2016-12-20 | 2021-12-14 | Daikin Industries, Ltd. | Rotary electric machine |
| CN114079328A (en) * | 2020-08-10 | 2022-02-22 | 中车株洲电力机车研究所有限公司 | Mixed excitation axial flux motor |
| CN113067446A (en) * | 2021-05-20 | 2021-07-02 | 河北工业大学 | Double-modularization hybrid excitation flux switching motor |
| CN113067446B (en) * | 2021-05-20 | 2023-03-03 | 河北工业大学 | Double-modularization hybrid excitation flux switching motor |
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Open date: 20100728 |