CN103199662B - The composite excitation permanent magnet synchronous motor of third harmonic excitation - Google Patents
The composite excitation permanent magnet synchronous motor of third harmonic excitation Download PDFInfo
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- CN103199662B CN103199662B CN201310076126.2A CN201310076126A CN103199662B CN 103199662 B CN103199662 B CN 103199662B CN 201310076126 A CN201310076126 A CN 201310076126A CN 103199662 B CN103199662 B CN 103199662B
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- 230000005284 excitation Effects 0.000 title claims abstract description 57
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 19
- 239000002131 composite material Substances 0.000 title claims abstract description 12
- 238000004804 winding Methods 0.000 claims abstract description 88
- 230000003068 static effect Effects 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 abstract description 2
- 230000005291 magnetic effect Effects 0.000 description 29
- BGPVFRJUHWVFKM-UHFFFAOYSA-N N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] Chemical compound N1=C2C=CC=CC2=[N+]([O-])C1(CC1)CCC21N=C1C=CC=CC1=[N+]2[O-] BGPVFRJUHWVFKM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
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Abstract
A kind of composite excitation permanent magnet synchronous motor of third harmonic excitation, comprise a casing, Ji Tezheng is the rotor that the stator being made up of stator core, stator armature winding, third harmonic component winding is housed in casing and is fixed on the brush on casing and is made up of rotor core, rotor field coil, permanent magnet, rotating shaft, collector ring. Stator armature winding and third harmonic component winding are distributed in the groove of along the circumferential direction offering in stator core. In rotor core, be furnished with permanent magnet and rotor field coil, rotor field coil is distributed in the groove that the rotor core between permanent magnet along the circumferential direction offers, and its lead-in wire is connected with collector ring. Collector ring is enclosed within rotating shaft, is connected with static brush. The present invention has improved the utilization rate of material, have advantages of that air-gap field is easy to adjust, and electric excitation loss is little, has kept the high advantage of magneto efficiency.
Description
Technical field
Technical field of motors of the present invention, relates to a kind of magneto.
Background technology
Magneto has high efficiency, high power density, the plurality of advantages such as simple in structure and reliable, make the application of magneto very extensive, as the generator in driving motor for electric automobile, compressor of air conditioner, wind-driven generator, portable power source and aerospace craft. Meanwhile, air-gap field regulates difficult shortcoming also to hinder to a certain extent the further promotion and application of magneto. In order to overcome its shortcoming, many experts and scholar have proposed multiple hybrid excitation permanent magnet motor, in this motor, there are two kinds of excitation magnetic kinetic potentials simultaneously: permanent-magnet magnetic kinetic potential and electric excitation magnetic kinetic potential, by regulating electric excitation magnetic kinetic potential to realize the adjusting of magneto air-gap field.
At present, hybrid excitation permanent magnet motor scheme is more, and the difference according to Exciting Windings for Transverse Differential Protection in motor is arranged, can be divided into the rotary-type hybrid excitation permanent magnet motor of Exciting Windings for Transverse Differential Protection silent oscillation hybrid excitation permanent magnet motor and Exciting Windings for Transverse Differential Protection. For Exciting Windings for Transverse Differential Protection silent oscillation hybrid excitation permanent magnet motor, its Exciting Windings for Transverse Differential Protection is annular, be arranged on stator or at the axle head of motor, this class hybrid excitation permanent magnet motor is except existing radial magnetic circuit, also there is axial magnetic circuit, even also there is additional air gap, thereby increased the length of magnetic path, thereby reduced the efficiency of motor. For the rotary-type hybrid excitation permanent magnet motor of Exciting Windings for Transverse Differential Protection, wherein having a class hybrid excitation permanent magnet motor is the combination of permagnetic synchronous motor and electric excitation synchronous motor, and two motors are separate on magnetic circuit, thereby has reduced the power density of motor. And, no matter be Exciting Windings for Transverse Differential Protection silent oscillation hybrid excitation permanent magnet motor or the rotary-type hybrid excitation permanent magnet motor of Exciting Windings for Transverse Differential Protection, it is all to be provided by external power source for regulating the required exciting current in motor gas-gap magnetic field.
Summary of the invention
The object of the invention is to for above-mentioned the deficiencies in the prior art, a kind of composite excitation permanent magnet synchronous motor of third harmonic excitation is provided, this motor is realized the adjusting of magneto air-gap field by obtaining triple-frequency harmonics magnetic field energy intrinsic in air-gap field.
Technical scheme of the present invention is achieved in that a kind of composite excitation permanent magnet synchronous motor of third harmonic excitation, comprise a casing, the rotor that the stator being made up of stator core, stator armature winding, third harmonic component winding is housed in casing and is fixed on the brush on casing and is formed by rotor core, rotor field coil, permanent magnet, rotating shaft, collector ring. Stator armature winding and third harmonic component winding are distributed in the groove of along the circumferential direction offering in stator core. In rotor core, be furnished with permanent magnet and rotor field coil, rotor field coil is distributed in the groove that the rotor core between permanent magnet along the circumferential direction offers, and its lead-in wire is connected with collector ring. Collector ring is enclosed within rotating shaft, is connected with static brush.
Described stator armature winding can be three-phase winding, can be also single-phase or polyphase windings; Can be integer groove winding, can be also fractional-slot winding.
Described third harmonic component winding is single-phase winding.
Described stator armature winding pole span is three times of third harmonic component winding pole span.
Described rotor field coil can be to concentrate winding, can be also Distributed Winding.
Described rotor permanent magnet quantity can arrange arbitrarily as required in pairs.
Described rotor permanent magnet can adopt cutting orientation structure, and mixed structure.
Described rotor can or be positioned over outside stator in stator.
Described composite excitation permanent magnet synchronous motor stator number of pole-pairs is identical with rotor pole logarithm.
On the composite excitation permanent magnet synchronous motor stator of a kind of third harmonic excitation of the present invention, arrange double winding: stator armature winding and third harmonic component winding. Stator armature winding is for energy converting between mechanical, and third harmonic component winding is for obtaining the triple-frequency harmonics magnetic field energy of air gap, and third harmonic component winding number of pole-pairs is three times of stator armature winding number of pole-pairs. On rotor, not only there is permanent magnet, and arranged Exciting Windings for Transverse Differential Protection. Rotor pole logarithm is identical with stator armature winding number of pole-pairs. Stator armature winding is corresponding with fundamental wave magnetic field and triple-frequency harmonics magnetic field that excitation magnetic kinetic potential produces respectively with third harmonic component winding, produces electromagnetic induction effect, is equivalent to the synchronous generator of a rotary pole. The electromotive force of third harmonic component winding induction obtains required DC excitation electric current after thyristor rectifier, and the electric excitation magnetic kinetic potential that this DC excitation electric current is set up is used for regulating the air-gap field of motor, thereby reaches the object that regulates stator armature winding voltage.
Compared with prior art, hybrid excitation permanent magnet motor of the present invention has following features.
1, by obtaining the adjusting of triple-frequency harmonics magnetic field energy intrinsic in air gap for magneto air-gap field, and without for triple-frequency harmonics magnetic field arranges special ferromagnetic material, improved the utilization rate of material.
2, by controlling the adjustable rotor field coil electric current of phase place and the generator voltage of scr rectification circuit trigger impulse, have advantages of that air-gap field is easy to adjust.
3, close with common permanent magnetic synchronous motor structure, do not have axial magnetic circuit and additional air gap, and triple-frequency harmonics magnetic field is only for the auxiliary adjustment of air-gap field, electric excitation loss is little, has kept the high advantage of magneto efficiency.
Brief description of the drawings
Fig. 1 is the A-A sectional view of Fig. 2, is the composite excitation permanent magnet synchronous motor structure schematic diagram of third harmonic excitation. Wherein 1 is casing, and 2 is stator core, and 3 is stator armature winding, and 4 is third harmonic component winding, and 5 is permanent magnet, and 6 is rotating shaft, and 7 is rotor core, and 8 is rotor field coil, and 9 is brush, and 10 is collector ring, and 11 is bearing.
Fig. 2 is motor sectional view in Fig. 1, very routine with 4. Wherein 2 is stator core, and 3 is stator armature winding, and 4 is third harmonic component winding, 5 is permanent magnet, and 6 is rotating shaft, and 7 is rotor core, 8 is rotor field coil, and 12 for arranging the groove of winding in stator core, and 13 for arranging the groove of rotor field coil in rotor core.
Fig. 3 is B-B part further explanatory drawings in Fig. 2, for convenient, expand into straight line and draws. Wherein 2 is stator core, and 3 is stator armature winding, and 4 is third harmonic component winding, 5 is permanent magnet, and 6 is rotating shaft, and 7 is rotor core, 8 is rotor field coil, and 12 for arranging the groove of winding in stator core, and 13 for arranging the groove of rotor field coil in rotor core. In figure, also draw the third-harmonic flux density waveform that excitation magnetic kinetic potential produces.
Fig. 4 is the composite excitation permanent magnet synchronous motor circuit theory diagrams of third harmonic excitation.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Embodiment.
From Fig. 1 and Fig. 2, the composite excitation permanent magnet synchronous motor of third harmonic excitation of the present invention, comprises casing 1, disposes stator core 2 in casing 1, in stator core 2, along the circumferential direction slot, in groove, be furnished with stator armature winding 3 and third harmonic component winding 4. Casing 1 maintains static with stator core 2, and brush 9 is fixed on casing 1. In casing 1, dispose rotating shaft 6, rotating shaft 6 is connected with casing 1 by bearing 11. Collector ring 10 is enclosed within rotating shaft 6, is connected with static brush 9; Meanwhile, be furnished with permanent magnet 5 and rotor field coil 8 in rotor core 7, fluting in the rotor core 7 between permanent magnet 5, arranges rotor field coil 8 in groove, and rotor field coil 8 lead-in wires are received on collector ring 10. Rotor field coil 8, permanent magnet 5, rotor core 7 and collector ring 10 can together with along with rotating shaft 6 is in the interior rotation of stator core 2.
Operation principle of the present invention is: in the time of generator no-load running, rotating shaft 6 is with synchronous speed rotation, and permanent magnet 5 is set up excitation field, responds to the electromotive force of synchronizing frequency in stator armature winding 3, and this electromotive force can not regulate in rotating speed one timing. In order to regulate the electromotive force of stator armature winding 3, in stator core 2, arrange third harmonic component winding 4, its pole span is 1/3 of stator armature winding 3 pole spans, has arranged rotor field coil 8 in rotor core 7. Triple-frequency harmonics electromotive force is responded in the triple-frequency harmonics magnetic field that excitation magnetic kinetic potential produces in third harmonic component winding 4, the DC excitation electric current of this triple-frequency harmonics electromotive force after by scr rectification circuit rectification is input in rotor field coil 8 through brush 9 and collector ring 10, the electric excitation magnetic kinetic potential that DC excitation electric current produces can realize the adjusting of air-gap field, thereby regulates the electromotive force of stator armature winding 3. Just can control by the phase place of controlling scr rectification circuit trigger impulse the voltage swing being applied on rotor field coil 8, realize the function of regulator generator terminal voltage. The phase place of trigger impulse is detected after generator voltage and is determined by excitation controller, and circuit theory diagrams as shown in Figure 4.
Illustrate the principle of third harmonic component winding 4 induced electromotive forces below with reference to Fig. 3. Describe with a pair of very example, the stator armature winding 3 in Fig. 3 and third harmonic component winding 4 are all whole apart from winding as example the most simply to concentrate, and third harmonic component winding 4 pole spans are 1/3 of stator armature winding 3 pole spans. Excitation magnetic kinetic potential acts on and in the air-gap field producing on average air-gap permeance, contains first-harmonic and odd harmonics magnetic flux density, in Fig. 3, draw the third-harmonic flux density waveform that excitation magnetic kinetic potential produces, its pole span equates with third harmonic component winding 4 pole spans, rotate with synchronous speed with rotor, in third harmonic component winding 4, the frequency of induced electromotive force is three times of stator armature winding 3 first-harmonic induced electromotive forces.
The electromotive force that third harmonic component winding 4 is responded to obtains DC excitation electric current after scr rectification circuit rectification, and DC excitation electric current is passed in rotor field coil 8 and is realized excitation by brush 9 and collector ring 10, and circuit theory diagrams as shown in Figure 4.
DC excitation electric current flows through rotor field coil 8 sets up the magnetic field static with respect to rotor core 7, this magnetic field is synchronous speed rotation with respect to stator core 2 and stator armature winding 3, in stator armature winding 3, respond to the electromotive force of synchronizing frequency, stator armature winding 3 is connected and just can outwards exports energy with external circuit.
When the present invention is used as generator, stator armature winding 3 is connected with load; During as motor, stator armature winding 3 is connected with driving power.
Third harmonic component winding 4 is connected with scr rectification circuit, the phase place of scr rectification circuit trigger impulse by excitation controller by given after the voltage of test side.
Scr rectification circuit can adopt single-phase bridge full-controlled rectifier or the rectification of single-phase bridge half control, also can adopt single-phase half-wave controlled rectification.
Claims (9)
1. the composite excitation permanent magnet synchronous motor of a third harmonic excitation, comprise a casing, Ji Tezheng is the rotor that the stator being made up of stator core, stator armature winding, third harmonic component winding is housed in casing and is fixed on the brush on casing and is made up of rotor core, rotor field coil, permanent magnet, rotating shaft, collector ring; Stator armature winding and third harmonic component winding are distributed in the groove of along the circumferential direction offering in stator core; In rotor core, be furnished with permanent magnet and rotor field coil, rotor field coil is distributed in the groove that the rotor core between permanent magnet along the circumferential direction offers, and its lead-in wire is connected with collector ring; Collector ring is enclosed within rotating shaft, is connected with static brush.
2. motor according to claim 1, is characterized in that described stator armature winding is three phase windings, single-phase or polyphase windings; Groove winding number is integer groove winding or fractional-slot winding.
3. motor according to claim 1, is characterized in that described third harmonic component winding is single-phase winding.
4. motor according to claim 1, is characterized in that described stator armature winding pole span is three times of third harmonic component winding pole span.
5. motor according to claim 1, is characterized in that described rotor field coil is for concentrating winding, or Distributed Winding.
6. motor according to claim 1, is characterized in that described rotor permanent magnet quantity arranges as required in pairs.
7. motor according to claim 1, is characterized in that described rotor permanent magnet is for adopting cutting orientation structure or mixed structure.
8. motor according to claim 1, is characterized in that described rotor is placed in stator or is positioned over outside stator.
9. motor according to claim 1, is characterized in that described composite excitation permanent magnet synchronous motor stator number of pole-pairs is identical with rotor pole logarithm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310076126.2A CN103199662B (en) | 2013-03-11 | 2013-03-11 | The composite excitation permanent magnet synchronous motor of third harmonic excitation |
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| CN201310076126.2A CN103199662B (en) | 2013-03-11 | 2013-03-11 | The composite excitation permanent magnet synchronous motor of third harmonic excitation |
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| CN103199662A CN103199662A (en) | 2013-07-10 |
| CN103199662B true CN103199662B (en) | 2016-05-11 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103501103A (en) * | 2013-10-18 | 2014-01-08 | 梁慎清 | Non-wear induction speed reducing and changing machine |
| CN104638792B (en) * | 2015-03-04 | 2018-05-11 | 浙江迈雷科技有限公司 | A kind of mixed excitation electric machine |
| CN106787564A (en) * | 2017-01-23 | 2017-05-31 | 南昌大学 | A kind of brushless hybrid excitation magneto based on harmonic exitation |
| CN108696013A (en) * | 2017-04-07 | 2018-10-23 | 章宪 | AC magnetoelectric machine |
| CN108880158A (en) * | 2018-07-19 | 2018-11-23 | 哈尔滨工业大学 | The harmonic field of synchronous motor and the motor with discrete orthogonal harmonic winding orients brushless excitation method |
| CN110808649B (en) * | 2019-11-08 | 2021-01-12 | 南京航空航天大学 | Double-working harmonic rotor and alternating-current excitation brushless motor |
| CN113794303A (en) * | 2021-09-24 | 2021-12-14 | 哈尔滨理工大学 | Triangle-connected high-speed permanent magnet synchronous motor winding wiring mode |
| CN114865983B (en) * | 2022-06-02 | 2023-04-18 | 南京航空航天大学 | Three-phase alternating current speed regulation system for multiplexing excitation winding |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651394A (en) * | 2009-06-02 | 2010-02-17 | 清华大学 | Mixed excitation magnetoelectric machine adopting harmonic excitation |
| CN101662176A (en) * | 2009-09-30 | 2010-03-03 | 永济新时速电机电器有限责任公司 | High-power harmonic wave excitation generator |
| CN202488395U (en) * | 2012-03-20 | 2012-10-10 | 山东孚日电机有限公司 | Alternator driven by single-phase harmonic shaft for ship |
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2013
- 2013-03-11 CN CN201310076126.2A patent/CN103199662B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101651394A (en) * | 2009-06-02 | 2010-02-17 | 清华大学 | Mixed excitation magnetoelectric machine adopting harmonic excitation |
| CN101662176A (en) * | 2009-09-30 | 2010-03-03 | 永济新时速电机电器有限责任公司 | High-power harmonic wave excitation generator |
| CN202488395U (en) * | 2012-03-20 | 2012-10-10 | 山东孚日电机有限公司 | Alternator driven by single-phase harmonic shaft for ship |
Non-Patent Citations (1)
| Title |
|---|
| 同步发电机空载电压波形的齿磁通计算;黄劭刚等;《中国电机工程学报》;20050731;第25卷(第13期);135-138页 * |
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