CN103490579A - Novel multiphase doubly salient permanent magnet motor - Google Patents

Novel multiphase doubly salient permanent magnet motor Download PDF

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Publication number
CN103490579A
CN103490579A CN201310402889.1A CN201310402889A CN103490579A CN 103490579 A CN103490579 A CN 103490579A CN 201310402889 A CN201310402889 A CN 201310402889A CN 103490579 A CN103490579 A CN 103490579A
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CN
China
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stator
permanent magnet
salient
novel
permanent
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CN201310402889.1A
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Chinese (zh)
Inventor
周建忠
何嘉颖
其他发明人请求不公开姓名
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何嘉颖
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Priority to CN201310402889.1A priority Critical patent/CN103490579A/en
Publication of CN103490579A publication Critical patent/CN103490579A/en

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Abstract

The invention discloses a novel multiphase doubly salient permanent magnet motor. The novel multiphase doubly salient permanent magnet machine comprises a stator iron core, armature windings, permanent magnets and a rotor iron core, wherein the stator iron core is composed of a plurality of split stator iron cores. Each split stator iron core is provided with a plurality of stator salient poles which are distributed at certain intervals. A stator groove is formed by every two adjacent stator salient poles. Wire turns of the armature windings are embedded into the stator grooves. Every two adjacent wire turn sections in each armature winding are across more than three stator salient poles. An interval is formed between every two adjacent split stator iron core yoke portions to form a yoke portion groove. The permanent magnets are fixed in the yoke portion grooves. Rotors are of salient poles structures and are free of the permanent magnets and coil windings.

Description

A kind of Novel multi-phase doubly salient permanent magnet motor
Technical field
The present invention relates to flux switch motor, comprise motor and generator, relate in particular to a kind of Novel multi-phase doubly salient permanent magnet motor, belong to electric equipment and drive and field of motor manufacturing.
 
Background technology
Motor driving apparatus is consuming the overwhelming majority of industrial energy, energy-conservation for advocating, and constantly has in the world new motor standard to occur, efficiency and power density are had to higher requirement; Asynchronous machine still occupies certain status at industrial circle at present, is consuming the major part of industrial energy, improve its efficiency, needs complicated technique; Rotor permanent magnet type magneto, is installed complexity, and is difficult for adjustable magnetic due to permanent magnet on rotor, above two kinds of alternating current machines all are limited to the restriction of speed adjustable range, therefore and the manufacturing process complexity, difficult in maintenance, urgently the development of new motor goes to improve the problem of above appearance.
The stator permanent-magnet motor is the Novel electric drive motor occurred in recent years, can exchange and be with the copped wave DC operation, it is a kind of novel buncher, there is speed-regulating range width, the high excellent characteristics that waits of power density, and the rotor permanent magnet type of comparing motor more easily dispels the heat, make permanent magnet reduce the impact that is subject to temperature, and, there is no permanent magnet and coil windings on rotor, for the double-salient-pole structure, therefore it is simple in structure firm, system reliability is high, because permanent magnet is placed in stator, when therefore the air gap excitation field is strengthened, also be easy to regulate, make it be very suitable for efficiently, speed governing and high-speed cruising.
The stator permanent-magnet double salient pole motor occurred at present, being generally armature winding is wound on stator salient poles, form centralized winding, the effect of the electromotive force by armature winding, regulate permanent magnet excitation and lead to the switching on different salient poles, yet, there is the obvious problem that copper factor is low in it, and, because the magnetic flux of armature winding linkage is unipolarity, inductance is little, cause back electromotive force little, this make this kind of motor material and space availability ratio low.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of Novel multi-phase doubly salient permanent magnet motor, and it has higher power density, reliability, efficiency and material and space availability ratio.
For solving the problem described in background technology, the present invention adopts following technical scheme:
A kind of Novel multi-phase doubly salient permanent magnet motor (0), is characterized in that, comprising:
Stator core, armature winding, permanent magnet and rotor core, wherein, described stator core is segmental structure, a plurality of sectionalized stator iron cores, consists of; Between described a plurality of sectionalized stator iron core, have ,Gai interval, an interval to form yoke section groove, described permanent magnet is embedded to be fixed in described yoke section groove; Described sectionalized stator iron core has a plurality of stator salient poles that distribute at certain intervals, and adjacent described stator salient poles and yoke section form without the permanent-magnet stator groove, and described armature winding is embedded in described without in the permanent-magnet stator groove; The stator slot consisted of different sectionalized stator iron core salient poles is the permanent-magnet stator groove; Like this, the stator core be comprised of the sectionalized stator iron core also has several stator salient poles with certain gap distribution;
Described rotor core is salient-pole structure, there is no permanent magnet, there is no coil windings;
The punching that described stator core and rotor core are made by permeability magnetic material is overrided to form.
Described Novel multi-phase doubly salient permanent magnet motor, is characterized in that, motor phase armature winding is whole apart from winding, is embedded in without crossing over the stator salient poles more than three and three between the armature winding adjacent turns in the permanent-magnet stator groove; Without armature winding, fill with yoke section groove and the extension that is built in permanent magnet in yoke section groove, thereby increase the permanent magnetism volume in the permanent-magnet stator groove; Preferably, the permanent-magnet stator groove is built-in with excitation winding, to strengthen and to weaken permanent magnet excitation field function, forms the heterogeneous many salient poles magneto of composite excitation type.
Wherein, the permanent magnet magnetizing direction edge be built in yoke section groove is circumferentially contrary, and causing the polarity of the magnetic field in the sectionalized stator iron core is unipolarity.
Wherein, described permanent magnet is the segmentation permanent magnet, i.e. radially segmentation; Preferably, can be the whole permanent magnetic body.
Wherein, described permanent magnet is ferrite and ferro-aluminum boron, or the permanent magnet module made of other permanent magnetic materials.
Wherein, preferably, the stator salient poles direction in described sectionalized stator iron core can be radially inside or outside, and can be vertically;
The stator salient poles direction is radially inside, and rotor with salient pole is radially outside, has formed the internal rotor doubly salient permanent magnet motor;
The stator salient poles direction is radially outside, and rotor with salient pole is radially inside, has formed external rotor double salient pole permanent magnet motor;
Vertically, the rotor with salient pole direction vertically, has formed the disc type doubly salient permanent magnet motor to the stator salient poles direction.
Wherein, described Novel multi-phase doubly salient permanent magnet motor, the rotor salient pole number of this motor is (2+2 ), (2 ) and (2 * X+2)/(2 * X-2), wherein for being greater than 1 integer, preferably, rotor salient pole number can be respectively , (2 * X-2)/(2*X+2).
Wherein, the control unit that described Novel multi-phase doubly salient permanent magnet motor is driven and controlled this drive circuit by drive circuit unit, this drive circuit comprises semibridge system and the full-bridge type structural circuit be comprised of the semiconductor switch pipe, and the semiconductor switch pipe in control unit control drive circuit unit is the logical action to be scheduled to according to the rotor with salient pole position.
Wherein, described Novel multi-phase doubly salient permanent magnet motor, can be used for electronic and electricity generate function.
Wherein, for keeping the integrality of whole stator core, each sectionalized stator iron core has an iron core bridge, and by this iron core bridge, a plurality of sectionalized stator iron cores form a complete stator core.
 
Have a mind to effect:
The present invention is a kind of Novel multi-phase double salient-pole electric machine, the armature winding wire turn is embedded in stator slot, cross over three and three above stator salient poles between every phase armature winding adjacent turns, like this, rotor salient pole number can have multiple mixed form, the most frequently used is 6(salient stator number of poles)/4(rotor with salient pole number), 8(salient stator number of poles)/6(rotor with salient pole number), 12(salient stator number of poles)/8(rotor with salient pole number), the permanent magnet be fixed in stator yoke section groove provides excitation logical, regulate the single pole magnetic field in the sectionalized stator iron core by the sense of current changed in armature winding, realize the externally purpose of acting, with the doubly salient permanent magnet motor of the built-in permanent magnetism of existing stator, compare, a kind of Novel multi-phase doubly salient permanent magnet motor of the present invention has following beneficial effect:
1) higher power density, and the permanent magnetism consumption is few;
2) stock utilization is higher;
3) copper factor is high, thereby loss is evenly distributed, and is easy to heat radiation, strengthens the motor load ability;
4) manufacturing cost and control cost low.
 
The accompanying drawing explanation
Fig. 1 is a kind of Novel multi-phase doubly salient permanent magnet motor of the present invention schematic cross-section;
Fig. 2 is the present invention a kind of Novel multi-phase doubly salient permanent magnet motor drives unit and control unit schematic diagram;
Fig. 3 is the stator core schematic diagram in Fig. 1;
Fig. 4 is the segmentation permanent magnet schematic diagram in Fig. 1;
Fig. 5 is the phase armature winding structure schematic diagram in Fig. 1
Fig. 6 is the flux distribution of a kind of Novel multi-phase doubly salient permanent magnet motor in Fig. 1
Fig. 7 is for being built-in with the sectional view of excitation winding in a kind of Novel multi-phase doubly salient permanent magnet motor of the present invention permanent-magnet stator groove.
 
Embodiment
In connection with accompanying drawing, the present invention is described in more detail now, provided example of the present invention in accompanying drawing.
With reference to figure 1, schematic cross-section for a kind of Novel multi-phase doubly salient permanent magnet motor of the present invention (0), comprise: stator core (SC), armature winding (A, B), permanent magnet (M) and rotor core (R), with reference to figure 3, described stator core (SC) is comprised of four identical sectionalized stator iron cores (SCS) of shape, for keeping the integrality of stator core, four identical sectionalized stator iron cores of shape connect as one by iron core bridge (IB), form yoke section groove (YS) between different adjacent sectional stator cores, stator salient poles and yoke section form without permanent-magnet stator groove (NMS_1, NMS_2), form permanent-magnet stator groove (MS) by the stator salient poles on adjacent different sectionalized stator iron cores, continuation is with reference to figure 1, each sectionalized stator iron core (SCS) has three with certain stator salient poles (SS_1 uniformly at intervals, SS_2, SS_3), the different wire turn sections of B phase armature winding (B1~B4) are embedded in without in permanent-magnet stator groove NMS_1, the different wire turn sections of A phase armature winding (A1~A4) are embedded in without in permanent-magnet stator groove NMS_2, cross over three stator salient poles between adjacent different wire turns in two-phase, for example: cross over respectively three stator salient poles between A1~A4 and B1~B4, in this specific embodiment, in the permanent-magnet stator groove, without armature winding, permanent magnet is built in yoke section groove (YS), and adjacent permanent magnet magnetizing direction is contrary, guarantees that the polarity of the magnetic field in the sectionalized stator iron core is unipolarity, is S or N.
Continuation is with reference to figure 1, and rotor is salient-pole structure (R), along circumference, with direction, outwards is evenly equipped with several salient poles (RC).
With reference to figure 4, permanent magnet (M) can be segmentation permanent magnet (m1, m2, m3), to reduce eddy current wherein, finally reduces the wastage.
With reference to figure 2, drive circuit module figure for a kind of Novel multi-phase doubly salient permanent magnet motor, owing to being two-phase (PHASE_A, PHASE_B), the three-phase so compare, the device used still less, only need two current sensors (IA_SENSOR, IB_SENSOR) and two position transducers, after processing by control unit (CONTROL_UNIT), the gate-control signal of output switch device (gate_signal), in switching device, S1, S2, S5, S6 control the A phase, and S3, S4, S7, S8 control the B phase.(D1, D2, D3, D4, D5, D6, D7, D8) is in parallel with switching device for fly-wheel diode, provides the afterflow passage for phase winding turn-offs device, with protection switch device and recuperated energy.VDC is current and power supply, and C is energy storage and filter capacitor.
With reference to figure 5, preferably, the phase winding structure is snakelike winding, and four sections wire turns (A1, A2, A3, A4) are embedded in without in the permanent-magnet stator groove.
With reference to figure 6, be the Distribution of Magnetic Field figure of a kind of Novel multi-phase doubly salient permanent magnet motor of the present invention, the situation of the logical negative electricity of B phase winding wire turn, most of permanent magnet excitation magnetic flux is by the salient pole overlapped, thereby the increase of working gas gap magnetic flux, and magnetic flux is externally exported workmanship.
Be the sectional view of the present invention's the second specific embodiment with reference to figure 7, be built-in with the Novel multi-phase doubly salient permanent magnet motor (H0) of excitation winding in the permanent-magnet stator groove.
By stator core (HSC), armature winding (HA, HB) permanent magnet (HM) and rotor core (HR) form, described stator core (HSC) is comprised of four identical sectionalized stator iron cores (HSCS) of shape, each sectionalized stator iron core (SCS) has three with certain stator salient poles (HSS_1 uniformly at intervals, HSS_2, HSS_3), the different wire turn sections of HB phase armature winding (HB1~HB4) are embedded in without in the permanent-magnet stator groove, the different wire turn sections of HA phase armature winding (HA1~HA4) are embedded in without in the permanent-magnet stator groove, cross over three stator salient poles between adjacent different wire turns in two-phase, for example: cross over respectively three stator salient poles between HA1~HA4 and HB1~HB4, permanent magnet is built in yoke section groove (YS), and adjacent permanent magnet magnetizing direction is contrary, guarantees that the polarity of the magnetic field in the sectionalized stator iron core is unipolarity, is S or N, different with the first specific embodiment, be built-in with excitation winding (FC_1, FC_2, FC_3, FC_4) in four permanent-magnet stator grooves, change the sense of current in excitation winding, realize the function that excitation field is strengthened and weakened, other identical with the first specific embodiment repeats no more herein.
In addition, also need the explanation, although specific embodiments of the invention disclose as mentioned above, but the present invention can apply other forms of doubly salient permanent magnet motor, structures such as other external rotors and disk rotor, apply inner and outer rotors of the present invention and axial magnetic flux switching disc type electric machine execution mode all similar with above structure, here repeat no more, the salient pole combination of stator and rotor also can adopt other, such as 6/4,8/6,12/8 etc., its concrete principle and enforcement and roughly the same above, also repeat no more here.
Although embodiments of the invention have disclosed as above, the present invention is not limited to above-described embodiment, and any those skilled in the art, within not breaking away from the disclosed scope of the present invention, when doing a little change and adjustment.

Claims (10)

1. a Novel multi-phase doubly salient permanent magnet motor (0), is characterized in that, comprising:
Stator core, armature winding, permanent magnet and rotor core, wherein, described stator core is segmental structure, a plurality of sectionalized stator iron cores, consists of; Between described a plurality of sectionalized stator iron core, have ,Gai interval, an interval to form yoke section groove, described permanent magnet is fixed in described yoke section groove; Described sectionalized stator iron core has a plurality of stator salient poles that distribute at certain intervals, and adjacent described stator salient poles and yoke section form without the permanent-magnet stator groove, and described armature winding is embedded in described without in the permanent-magnet stator groove; The stator slot consisted of the stator salient poles on adjacent different sectionalized stator iron cores is the permanent-magnet stator groove; Like this, the stator core be comprised of the sectionalized stator iron core also has several stator salient poles with certain gap distribution, the integral multiple that this salient stator number of poles is sectionalized stator salient pole number;
Described permanent magnet is ferrite and ferro-aluminum boron, or the permanent magnet made of other permanent magnetic materials;
Described rotor core is salient-pole structure, there is no permanent magnet, there is no coil windings;
The punching that described stator core and rotor core are made by permeability magnetic material is overrided to form.
2. Novel multi-phase doubly salient permanent magnet motor according to claim 1, is characterized in that, phase armature winding is whole apart from winding, is embedded in without crossing over the stator salient poles more than three and three between the phase armature winding adjacent turns in the permanent-magnet stator groove.
3. Novel multi-phase doubly salient permanent magnet motor according to claim 1, is characterized in that, without armature winding, with yoke section groove and the extension that is built in permanent magnet in yoke section groove, fills in the permanent-magnet stator groove.
4. according to claim 1 and 3 described Novel multi-phase doubly salient permanent magnet motors, it is characterized in that, preferably, in described permanent-magnet stator groove, be built-in with excitation winding.
5. according to claim 1,3 and 4 described Novel multi-phase doubly salient permanent magnet motors, it is characterized in that, the permanent magnet magnetizing direction edge be built in yoke section groove is circumferentially contrary, and causing the polarity of the magnetic field in the sectionalized stator iron core is unipolarity.
6. according to claim 1 and 5 described Novel multi-phase doubly salient permanent magnet motors, it is characterized in that, described permanent magnet is the segmentation permanent magnet, i.e. radially segmentation; Preferably, be the whole permanent magnetic body.
7. Novel multi-phase doubly salient permanent magnet motor according to claim 1, is characterized in that, the stator salient poles direction in described sectionalized stator iron core can be radially inwardly or outwards, can be vertically,
The stator salient poles direction is radially inside, and rotor with salient pole is radially outside, has formed the internal rotor doubly salient permanent magnet motor;
The stator salient poles direction is radially outside, and rotor with salient pole is radially inside, has formed external rotor double salient pole permanent magnet motor;
Vertically, the rotor with salient pole direction vertically, has formed the disc type doubly salient permanent magnet motor to the stator salient poles direction.
8. according to the described Novel multi-phase doubly salient permanent magnet motor of claim 1-7, it is characterized in that, described Novel multi-phase doubly salient permanent magnet motor, the rotor salient-pole structure of this motor is (2 * X+/-2)/(2 * X), and (2*X+2)/(2*X-2) wherein X be more than or equal to 1 integer.
9. according to the described Novel multi-phase doubly salient permanent magnet motor of claim 1-8, it is characterized in that, the control unit that described Novel multi-phase doubly salient permanent magnet motor is driven and controlled this drive circuit by drive circuit unit, this drive circuit comprises semibridge system and the full-bridge type structural circuit be comprised of the semiconductor switch pipe, and the semiconductor switch pipe that control unit is controlled in drive circuit unit is pressed certain logical action.
10. according to the described Novel multi-phase doubly salient permanent magnet motor of claim 1-9, it is characterized in that, described Novel multi-phase doubly salient permanent magnet motor, can be used for electronic and electricity generate function.
CN201310402889.1A 2013-09-09 2013-09-09 Novel multiphase doubly salient permanent magnet motor CN103490579A (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103944340A (en) * 2014-05-15 2014-07-23 湖州佳力机电科技有限公司 Doubly-salient permanent magnet motor for washing machine
CN104578491A (en) * 2014-12-31 2015-04-29 南京航空航天大学 Sinusoidal doubly-salient motor with trapezoid rotor tooth structure and design method of sinusoidal doubly-salient motor
CN104600944A (en) * 2014-06-23 2015-05-06 深圳市乐丰科技有限公司 Permanent magnet switch reluctance machine and a stator assembly thereof
CN104821668A (en) * 2015-04-29 2015-08-05 江苏大学 Novel stator permanent magnet type motor
CN105071562A (en) * 2015-09-24 2015-11-18 中国石油大学(华东) Stator permanent magnet type field modulation motor
CN105281524A (en) * 2015-10-23 2016-01-27 易事特集团股份有限公司 Brushless double-fed motor
CN106655546A (en) * 2016-10-31 2017-05-10 吴强 Brushless DC generator and power generation technology
CN106712426A (en) * 2017-03-20 2017-05-24 山东理工大学 Independent five-phase permanent magnet wind driven generator
CN107453573A (en) * 2017-09-20 2017-12-08 华中科技大学 A kind of not equidistant mixed excitation bisalient-pole permanent-magnet synchronous machine of stator poles
CN108988520A (en) * 2018-07-25 2018-12-11 浙江大学 A kind of double salient-pole electric machine
CN109193992A (en) * 2018-11-26 2019-01-11 史政齐 The modularized motor of the high copper factor winding of the pre- coiling of electric car
CN110098707A (en) * 2019-04-09 2019-08-06 浙江大学 A kind of long magnetic teeth double-convex pole hybrid excitation motor
CN110112852A (en) * 2019-05-24 2019-08-09 浙江大学 A kind of double-fed magneto

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103944340A (en) * 2014-05-15 2014-07-23 湖州佳力机电科技有限公司 Doubly-salient permanent magnet motor for washing machine
CN104600944A (en) * 2014-06-23 2015-05-06 深圳市乐丰科技有限公司 Permanent magnet switch reluctance machine and a stator assembly thereof
CN104578491A (en) * 2014-12-31 2015-04-29 南京航空航天大学 Sinusoidal doubly-salient motor with trapezoid rotor tooth structure and design method of sinusoidal doubly-salient motor
CN104821668A (en) * 2015-04-29 2015-08-05 江苏大学 Novel stator permanent magnet type motor
CN104821668B (en) * 2015-04-29 2017-05-31 江苏大学 A kind of stator permanent magnetic type electric
CN105071562A (en) * 2015-09-24 2015-11-18 中国石油大学(华东) Stator permanent magnet type field modulation motor
CN105281524A (en) * 2015-10-23 2016-01-27 易事特集团股份有限公司 Brushless double-fed motor
CN106655546A (en) * 2016-10-31 2017-05-10 吴强 Brushless DC generator and power generation technology
CN106655546B (en) * 2016-10-31 2019-03-15 吴强 A kind of brushless DC generator and electricity-generating method
CN106712426B (en) * 2017-03-20 2019-01-18 山东理工大学 Each mutually independent five phases permanent-magnetic wind driven generator
CN106712426A (en) * 2017-03-20 2017-05-24 山东理工大学 Independent five-phase permanent magnet wind driven generator
CN107453573A (en) * 2017-09-20 2017-12-08 华中科技大学 A kind of not equidistant mixed excitation bisalient-pole permanent-magnet synchronous machine of stator poles
CN108988520A (en) * 2018-07-25 2018-12-11 浙江大学 A kind of double salient-pole electric machine
CN109193992A (en) * 2018-11-26 2019-01-11 史政齐 The modularized motor of the high copper factor winding of the pre- coiling of electric car
CN109193992B (en) * 2018-11-26 2020-12-01 山东理工大学 Modular motor of pre-wound high-slot-fill-ratio winding of electric automobile
CN110098707A (en) * 2019-04-09 2019-08-06 浙江大学 A kind of long magnetic teeth double-convex pole hybrid excitation motor
CN110112852A (en) * 2019-05-24 2019-08-09 浙江大学 A kind of double-fed magneto

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Application publication date: 20140101