CN202513795U - Half-tooth winding switched reluctance motor - Google Patents
Half-tooth winding switched reluctance motor Download PDFInfo
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- CN202513795U CN202513795U CN2012200663684U CN201220066368U CN202513795U CN 202513795 U CN202513795 U CN 202513795U CN 2012200663684 U CN2012200663684 U CN 2012200663684U CN 201220066368 U CN201220066368 U CN 201220066368U CN 202513795 U CN202513795 U CN 202513795U
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Abstract
The utility model relates to a half-tooth winding switched reluctance motor, which comprises a stator and a rotor, wherein the stator and the rotor are respectively of a salient pole structure, and are respectively provided with stator slots and rotor slots which are evenly distributed, the rotor has neither permanent magnets nor windings, while the stator is provided with concentrated windings. The advantages of traditional switched reluctance motor such as simple and reliable structure, high robustness and suitability for high-speed rotation are preserved in structure. Each phase flux linkage and the change rate of flux linkage (change rate of inductance) of the motor are increased by changing the winding method of the windings on the stator, and the output torque of the motor is further increased. The half-tooth winding switched reluctance motor still adopts the concentrated windings, without adding the manufacturing difficulty and cost of the motor, the slot filling rate, the output torque and the power of the motor are increased, the reliability of the motor is further improved, and the system fault tolerant performance of the motor is strengthened.
Description
Technical field
The utility model is a kind of switched reluctance machines that adopts novel half tooth winding winding, is suitable for the switched reluctance machines of any number of phases, any rotor teeth groove cooperation, belongs to the technical field that motor is made.
Background technology
Along with power electronic device technology, microelectric technique and development of auto-control technology, the especially caused rise in price of rare earth permanent-magnetic material outlet restriction, the application of switched reluctance machines will be more and more widely.Switched reluctance machines is the biconvex electrode structure, and rotor is pressed folded processing by the ordinary silicon steel disc, has not both had permanent magnet on the rotor and has not also had winding, has only centralized winding coil on the stator, and it is according to " magnetic resistance is minimum " principle work.The switched reluctance machines manufacturing is simple, cost is low, and structure is firm, and volume is little, in light weight, and heat radiation is convenient, is suitable for high-speed cruising.It has demonstrated powerful competitiveness in industrial governing system field, hold out broad prospects at aspects such as electric automobile, household electrical appliance, textile machine, electric drive.At present, the research of switched reluctance machines is mainly concentrated in the improvement of optimization and control strategy of core configuration, and few to the research of winding winding.Traditional switched reluctance machines winding adopts full-depth tooth winding winding; Be all to be with a centralized winding coil on each stator tooth; With a stator slot dimidiation; Belong to out of phase two coil turn limits and be arranged in side by side in the same stator slot, need in groove, place and insulate mutually to isolate different phase windings.This tradition winding can not fully improve the copper factor of winding further to have given play to the torque fan-out capability of motor, has limited the further popularization and the development of switched reluctance machines.
Summary of the invention
Technical problem:The purpose of the utility model is exactly to propose a kind of winding construction that improves switched reluctance machines copper factor and inductance rate of change, makes its switched reluctance machines that is applicable to any number of phases, rotor teeth groove cooperation arbitrarily (like three-phase 6/4 utmost point, three-phase 12/8 utmost point, four phases, 8/6 utmost point etc.).Under the situation that does not change stator-rotor iron core, through changing the winding winding, improve poor (the inductance rate of change) of winding copper factor and maximum induction minimum inductance, make motor that bigger output torque and power is provided.
Technical scheme:The switched reluctance machines of the utility model mainly is made up of stator, rotor and new-type concentrated winding.
Compare with traditional switched reluctance machines, the stator of the switched reluctance machines of the utility model and rotor do not need to change, and all be to be laminated by core stamping to constitute, and the winding of winding have had bigger change.The winding of conventional switch reluctance motor is with a stator slot dimidiation; Belonging to out of phase two coil turn limits is arranged in the same stator slot side by side; Promptly need in groove, place and insulate mutually to isolate different phase windings; Be with a kind of current direction in each half groove, so all be with a centralized winding coil on each stator tooth.The switched reluctance machines winding construction that the utility model proposed is then placed the circle limit of a coil at each stator slot; Promptly with a kind of current direction; Thereby saved the phase insulation material; Make to have only to be with coil (corresponding stator tooth is called main tooth) on the half the stator tooth, do not have coil (corresponding stator tooth is called secondary tooth) on the half the stator tooth and have.Thus it is clear that,, make the indiscriminate stator tooth of script that the branch of main tooth (being with winding) and secondary tooth (no winding) arranged through this kind winding construction.
In the switched reluctance machines of threephase stator 12 grooves/rotor 8 teeth; The tradition winding construction has 12 winding coils on stator; Concentrate winding to the 12 to concentrate winding by counterclockwise being called first successively; Wherein: first concentrates winding and the 7th to concentrate winding radially relative, and the 4th concentrates winding and the tenth to concentrate winding radially relative, above-mentioned four coils can the order series, parallel or string and series-parallel connection after form the A phase winding; Second concentrates winding and the 8th to concentrate winding radially relative, and the 5th concentrates winding and the 11 to concentrate winding radially relative, above-mentioned four coils can the order series, parallel or string and series-parallel connection after form the B phase winding; The 3rd concentrates winding and the 9th to concentrate winding radially relative, and the 6th concentrates winding and the 12 to concentrate winding radially relative, above-mentioned four coils can the order series, parallel or string and series-parallel connection after form the C phase winding.
Winding winding according to the utility model; Have only on the stator tooth in per two stator tooths of the switched reluctance machines of the utility model to be with winding coil, and the space, promptly have 6 coils on the stator; All be placed on the main tooth; Concentrate winding to the six to concentrate winding by counterclockwise being called first successively, wherein: first concentrates winding and the 4th to concentrate winding radially relative, with forming the A phase winding behind their order serial or parallel connections; Second concentrates winding and the 5th to concentrate winding radially relative, with forming the B phase winding behind their order serial or parallel connections; The 3rd concentrates winding and the 6th to concentrate winding radially relative, with forming the C phase winding behind their order serial or parallel connections.
The key of the utility model is to keep the electric machine rotor core dimensions constant; Through changing the winding winding magnetic circuit of motor is changed; And then make every phase magnetic linkage become big; Cause the inductance rate of change of every phase to increase, can have good practicability and economy not increasing the effect that condition of cost is issued to the increase torque thus.In addition,, can suitably improve the winding copper factor, and then the increase motor is exerted oneself owing to do not need phase insulation.
The utility model can be applied to the switched reluctance machines of any number of phases, any rotor teeth groove number of poles combination, comprises three-phase 12/8 motor, three-phase 6/4 motor, four phases, 8/6 motor etc.
Beneficial effect:
1. the stator-rotor iron core of motor forms by the compacting of silicon steel sheet full wafer, and processing is simple, and structure is firm, need not use permanent magnet, and material and cost of manufacture are lower.
2. both do not had winding on the rotor of motor, and also do not had permanent magnet, moment of inertia is little, is suitable for high-speed cruising.
3. winding adopts the new-type winding on whole groove same polarity individual layer circle limit, under the situation that does not increase cost and manufacture difficulty, has effectively increased the inductance rate of change of every phase winding, thereby can improve motor output torque and power.
4. adopt this novel winding construction, can save the necessary phase insulation of traditional winding construction, thereby can increase the slot space utilance to a certain extent, increase umber of turn.
5. adopt this novel winding construction; Can be on the basis that does not increase traditional winding power demand device; Through changing the power circuit topological structure; Independent control belong to homophase but two cover winding currents of parallel connection with open the pass angle of rupture, promptly increase a control variables with torque pulsation inhibited, improve the motor output performance.
6. winding is centralized coil, and the coiling difficulty is low, and the end is shorter, has effectively reduced copper loss and has been beneficial to the heat radiation of motor.
7. each phase winding of motor is separate, and stronger fault-tolerant ability is arranged, and has effectively increased the reliability of system.
8. motor has only main tooth to be with winding, and secondary tooth does not have winding, so main tooth and secondary tooth can be treated respectively, optimizes shape and size separately, improves motor performance.
Description of drawings
Fig. 1 is the horizontal sectional structure sketch map of the switched reluctance machines of threephase stator 12 grooves/rotor 8 utmost points of being proposed of a playscript with stage directions utility model.Wherein have: stator 1, winding 2, first concentrates winding 2A1, second to concentrate winding 2B1, the 3rd to concentrate winding 2C1, the 4th to concentrate winding 2A2, the 5th to concentrate winding 2B2, the 6th to concentrate winding 2C2, rotor 3 in the three-phase set.
Fig. 2 is the horizontal sectional structure sketch map of the threephase stator 12 grooves/rotor 8 pole switching reluctance motors of traditional winding winding.
Fig. 3 is the single-phase self-induction oscillogram of the switched reluctance machines of traditional winding winding and new-type winding winding.
Fig. 4 adopts half electric periodic mode of single-phase energising, when winding passes through the electric current of same current size, and the switched reluctance machines output torque oscillogram of traditional winding winding and new-type winding winding.
Embodiment
Switched reluctance machines with threephase stator 12 grooves/rotor 8 utmost points is an example; As shown in Figure 1, the switched reluctance machines of the utility model comprises stator 1 and rotor 3, and rotor 3 is positioned at the inside (also can make outer-rotor structure) of stator 1; Stator 1 is salient-pole structure with rotor 3; Stator 1 can adopt silicon steel punching to press folded processing with rotor 3, makes simply, on stator 1, is placed with winding 2 in the three-phase set.Winding 2 has six centralized winding coils in the three-phase set.
First of winding 2 concentrates winding 2A1 and the 4th to concentrate winding 2A2 radially relative in the three-phase set; All be placed in the salient pole groove of stator 1; Each winding coil takes two adjacent salient pole grooves of stator 1; Both order serial or parallel connections are formed A and are concentrated winding mutually, and will guarantee that the magnetic linkage after the energising of two winding coils flows to mutually suitable.
Second of winding 2 concentrates winding 2B1 and the 5th to concentrate winding 2B2 radially relative in the three-phase set; All be placed in the salient pole groove of stator 1; Each winding coil takes two adjacent salient pole grooves of stator 1; Both order serial or parallel connections are formed B and are concentrated winding mutually, and will guarantee that the magnetic linkage after the energising of two winding coils flows to mutually suitable.
The 3rd of winding 2 the concentrates winding 2C1 and the 6th to concentrate winding 2C2 radially relative in the three-phase set; All be placed in the salient pole groove of stator 1; Each winding coil takes two adjacent salient pole grooves of stator 1; Both order serial or parallel connections are formed C and are concentrated winding mutually, and will guarantee that the magnetic linkage after the energising of two winding coils flows to mutually suitable.
As shown in Figure 1, the working mechanism of switched reluctance machines is followed the magnetic resistance minimum principle, and promptly magnetic flux is always closed along the path of magnetic resistance minimum (magnetic conductance is maximum).When stator and rotor tooth center line does not overlap, magnetic conductance when maximum, magnetic field will produce magnetic pull, forms reluctance torque, makes rotor forward the maximum position of magnetic conductance to.When in each phase winding of motor stator, feeding electric current successively, rotor will rotate to certain orientation length by length.If change the energising order of each phase of motor stator, motor turns to change, but the change of phase current energising direction can not influence turning to of rotor.
Among Fig. 1, when give the A phase first when concentrating winding 2A1 and the 4th to concentrate winding 2A2 energising, the magnetic pull of generation will try hard to make rotor to forward the position that the respective rotor tooth overlaps with stator tooth that winding coil 2A1,2A2 are comprised to.Like this, if give A-B-C phase winding coil electricity successively, then rotor just can rotate counterclockwise.If change the energising phase sequence, then rotor just can counter-rotation get up.
The size of switched reluctance machines output torque is by phase current and the decision of magnetic linkage (inductance) rate of change.Compare the winding of 12 half groove windings of conventional switch reluctance motor; The winding of 6 whole groove windings that the utility model proposed can effectively increase the magnetic linkage value of the every phase of motor; And then the size of raising magnetic linkage rate of change (inductance rate of change), improve the output torque capacity of motor with this.
Further; New-type winding switched reluctance machines has on the secondary tooth of the half the total stator number of teeth and does not overlap winding; Can optimize the profile of tooth and the facewidth of stator master's tooth and secondary tooth through FInite Element; It is saturated to reduce magnetic circuit, and then reduces the torque pulsation of motor, and further improves the switched reluctance motor flux linkage value and output torque value that adopts new-type winding.
Claims (3)
1. one and half tooth winding switched reluctance machines is characterized in that the concentrated winding on the stator (1) adopts half tooth winding winding, whenever are with centralized winding coil at a distance from a stator tooth; In threephase stator 12 groove rotors 8 pole switching reluctance motors: comprise winding (2) and rotor (3) in stator (1), the three-phase set; The tooth of stator (1) is provided with winding in the three-phase set (2); Wherein, winding in the three-phase set (2) has six winding coils, and each winding coil takes two adjacent salient pole grooves of stator; Be with the stator tooth of winding and the stator tooth of no winding and respectively have six; And the space, first concentrates winding (2A1) and the 4th to concentrate winding (2A2) radially relative, and the order serial or parallel connection is formed the A phase winding; Second concentrates winding (2B1) and the 5th to concentrate winding (2B2) radially relative, and the order serial or parallel connection is formed the B phase winding; The 3rd concentrates winding (2C1) and the 6th to concentrate winding (2C2) radially relative, and the order serial or parallel connection is formed the C phase winding.
2. half tooth winding switched reluctance machines according to claim 1 is characterized in that stator and rotor are salient-pole structure, no winding and permanent magnet on the rotor.
3. half tooth winding switched reluctance machines according to claim 1 is characterized in that described rotor is inner rotor core or outer-rotor structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200663684U CN202513795U (en) | 2012-02-28 | 2012-02-28 | Half-tooth winding switched reluctance motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200663684U CN202513795U (en) | 2012-02-28 | 2012-02-28 | Half-tooth winding switched reluctance motor |
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| Publication Number | Publication Date |
|---|---|
| CN202513795U true CN202513795U (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200663684U Expired - Fee Related CN202513795U (en) | 2012-02-28 | 2012-02-28 | Half-tooth winding switched reluctance motor |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820757A (en) * | 2012-02-28 | 2012-12-12 | 东南大学 | Half-gear winding switch reluctance motor |
| CN103166337A (en) * | 2013-01-30 | 2013-06-19 | 东南大学 | Double-speed winding switch reluctance motor |
| CN108964391A (en) * | 2018-08-31 | 2018-12-07 | 南京埃克锐特机电科技有限公司 | A kind of pole 6n/5n on-off reluctance motor with sectional rotor |
| CN111181266A (en) * | 2020-01-10 | 2020-05-19 | 南京航空航天大学 | Direct current bias type magnetic flux reverse permanent magnet motor |
| CN113595267A (en) * | 2020-04-30 | 2021-11-02 | 华为技术有限公司 | Motor and equipment |
-
2012
- 2012-02-28 CN CN2012200663684U patent/CN202513795U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820757A (en) * | 2012-02-28 | 2012-12-12 | 东南大学 | Half-gear winding switch reluctance motor |
| CN103166337A (en) * | 2013-01-30 | 2013-06-19 | 东南大学 | Double-speed winding switch reluctance motor |
| CN103166337B (en) * | 2013-01-30 | 2015-06-03 | 东南大学 | Double-speed winding switch reluctance motor |
| CN108964391A (en) * | 2018-08-31 | 2018-12-07 | 南京埃克锐特机电科技有限公司 | A kind of pole 6n/5n on-off reluctance motor with sectional rotor |
| CN111181266A (en) * | 2020-01-10 | 2020-05-19 | 南京航空航天大学 | Direct current bias type magnetic flux reverse permanent magnet motor |
| CN111181266B (en) * | 2020-01-10 | 2021-08-10 | 南京航空航天大学 | Direct current bias type magnetic flux reverse permanent magnet motor |
| CN113595267A (en) * | 2020-04-30 | 2021-11-02 | 华为技术有限公司 | Motor and equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121031 Termination date: 20170228 |
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| CF01 | Termination of patent right due to non-payment of annual fee |