CN207098899U - A kind of modified switched reluctance machines - Google Patents
A kind of modified switched reluctance machines Download PDFInfo
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- CN207098899U CN207098899U CN201720623292.3U CN201720623292U CN207098899U CN 207098899 U CN207098899 U CN 207098899U CN 201720623292 U CN201720623292 U CN 201720623292U CN 207098899 U CN207098899 U CN 207098899U
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- rotor
- switched reluctance
- stator
- reluctance machines
- tooth
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Abstract
The utility model discloses a kind of modified switched reluctance machines, and it includes stator, rotor and three-phase concentratred winding；The rotor is located at the inside of stator, and the stator and rotor are salient-pole structure, and the stator and rotor form by silicon steel sheet laminated.The rotor is straight trough rotor, and the salient pole of rotor is rotor tooth, and the rotor flank of the rotor tooth offers semicircle auxiliary tank.It opens up semi-circular groove by the both sides of the rotor tooth in switched reluctance machines, not only reduces the torque pulsation of switched reluctance machines, and adds motor average torque.
Description
Technical field
Technical field of motors is the utility model is related to, particularly a kind of low-torque-pulsation switched reluctance motor.
Background technology
Switched reluctance machines speed-adjusting driving system collection motor technology, Power Electronic Technique and automatically control microelectric technique
Innovation achievement and one, with its simple in construction, efficiency high, easy, the efficient stepless speed regulation of control, cost is low to wait uniqueness excellent
Point, have become other strong competitors of type motor speed-adjusting driving system in industrial circle, there is wide application
Prospect.It is widely used in fields such as household electrical appliance, auto industry, traction electric machines, obtains huge economic benefit；And by
Step starts the occasions such as generating applied to wind-power electricity generation, aviation.However, compared with other types motor, switched reluctance machines have
Larger noise and torque pulsation, its stator, the double-salient-pole structure of rotor and switching magnetic-resistance form power supply so that switch
Reluctance motor driving system highly couples as a multivariable, the system that non-thread sexual abnormality is serious, and torque pulsation is non-in operation
Chang Mingxian, and easily cause noise of motor, it have impact on the application that switched reluctance machines require high field conjunction in running quality.Both at home and abroad
Scholar mainly reduces the torque pulsation of switched reluctance machines in terms of the motor body structure optimization and control strategy two.However,
The research of Most scholars concentrates on control field, control strategy that many scholars are distributed based on torque, variable-structure control strategy
And modern control theory, new control strategy is proposed, but these methods based on control field add the complexity of controller
And cost.Therefore, the research for suppressing switched reluctance machines based on body obtains increasing scholar's attention.
Switched reluctance machines technology reduced by body construction existing, more by increase stator and rotor number of poles and
The number of phases reduces torque pulsation, but such a process increases the complexity of system and cost.Some technologies open V in rotor tooth one side
Shape groove, but shortcoming be can only one direction reduce torque pulsation, and average torque has declined.Some technologies are opened in rotor tooth both sides
Rectangular channel, but rectangular channel is related to three outside pitch line length, groove depth, groove width variables, and article is respectively by fixing two variables, optimization one
The method of individual variable selects optimal fluting size, considers influence when three variables one change to torque pulsation.
Therefore, the utility model proposes in rotor tooth both sides semi-circular groove, such variable pertains only to slotting position and fluting size, convenient
Carry out Parametric Analysis selection optimum structure.
Utility model content
The technical problems to be solved in the utility model is：To solve the larger skill of present switched reluctance machines torque pulsation
Art problem, the utility model provide a kind of modified switched reluctance machines, and it passes through two of the rotor tooth in switched reluctance machines
Side opens up semi-circular groove, not only reduces the torque pulsation of switched reluctance machines, and adds motor average torque.
In order to solve the above-mentioned technical problem, the utility model proposes following technical scheme：A kind of modified switching magnetic-resistance electricity
Machine, it includes stator, rotor and three-phase concentratred winding；The rotor is located at the inside of stator, and the stator and rotor are convex
Pole structure, the stator and rotor form by silicon steel sheet laminated.
The rotor is straight trough rotor, and the salient pole of rotor is rotor tooth, and the rotor flank of the rotor tooth offers half
Circular auxiliary tank.
The rotor tooth is parallel teeth, both without permanent magnet or without winding on rotor.
Semicircle auxiliary tank is machined with the rotor flank of both sides.
The beneficial effects of the utility model：
Compared with prior art, a kind of modified switched reluctance machines of the present utility model are in rotor tooth both sides open semicircle shape
Groove, the change of air-gap field is brought by the change of rotor shapes, that is, the radial direction magnetic reduced in air gap is close, while increases and cut
It is close to magnetic, torque pulsation inhibited purpose is not only reached, and average torque is added, advantageously reduce motor cost.
Brief description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 is a kind of configuration diagram of the preferred embodiment of modified switched reluctance machines of the present utility model.
Fig. 2 is the partial structural diagram of open semicircle shape groove in rotor tooth both sides of the present utility model.
Switched reluctance machines radial air gap magnetic in the case of Fig. 3 show rotor tooth both sides open semicircle shape auxiliary tank and do not slotted
Condensation wave shape.
The tangential air gap magnetic of switched reluctance machines in the case of Fig. 4 show rotor tooth both sides open semicircle shape auxiliary tank and do not slotted
Condensation wave shape.
Switched reluctance machines static torque pair in the case of Fig. 5 show rotor tooth both sides open semicircle shape auxiliary tank and do not slotted
Than figure.
Switched reluctance machines transient torque pair in the case of Fig. 6 show rotor tooth both sides open semicircle shape auxiliary tank and do not slotted
Than figure.
In figure：In stator 1, rotor 2, rotor tooth 2-1, rotor flank 2-1-1, semicircle auxiliary tank 2-1-2, three-phase set
Winding 3.
Embodiment
Embodiment of the present utility model is described further below in conjunction with the accompanying drawings.
A kind of preferred embodiments of modified switched reluctance machines of the present utility model as shown in Figure 1, it include stator 1,
Rotor 2 and three-phase concentratred winding 3, rotor 2 are located at the inside of stator 1, and stator 1 and rotor 2 are salient-pole structure, stator 1 and turn
Son 2 has silicon steel sheet laminated to form；
In embodiment as shown in Figure 2, rotor 2 is straight trough rotor, both without permanent magnet or without winding on rotor 2；Rotor 2 it is convex
Extremely rotor tooth 2-1, rotor tooth 2-1 are parallel teeth, and rotor tooth 2-1 rotor flank 2-1-1 both sides offer complementary semi-circular
Shape groove 2-1-2.
In as shown in Figure 3, Figure 4, a kind of preferred embodiments air gap flux density ripple of modified switching magnetic-resistance electricity of the present utility model
Shape figure, it can be seen that by the way that after the open semicircle shape groove of rotor tooth 2-1 both sides, air gap radial direction magnetic is close have been reduced, tangentially
Magnetic is close to be significantly increased, and the close maximum of the tangential magnetic of unslotted model is 0.74T, the close maximum of the tangential magnetic of model after open semicircle shape groove
0.91T, 22.97% is added compared with archetype.
As shown in figure 5, selection current source analysis, using single-phase winding excitation, for winding current by taking 20A as an example, definition is minimum
Inductive position is 0 ° of the initial position of motor, and to maximum induction position, 22.5 ° are stopped.Rotor tooth both sides open semicircle is obtained by emulation
Shape auxiliary tank and switched reluctance machines static torque comparison diagram in the case of not slotting.It can be seen that unslotted model is quiet
State torque capacity is 161.25T, and the static torque capacity of model is 165.37T after open semicircle shape auxiliary tank, with mould phase of not slotting
Than adding 2.55%.By the corrective measure in rotor tooth both sides open semicircle shape groove, compared to model of not slotting, motor pole
Higher torque value is obtained during in unjustified position.This causes motor average torque to increase, and effectively reduces
Stator and rotor magnetic pole enters torque mutation value during overlapping positions, so as to reducing the torque pulsation of switched reluctance machines.
As shown in fig. 6, establishing model after motor optimizes by Maxwell 2D transient analysis modules, external circuit, structure are connected
Complete Control System Imitation model is built, the torque for starting to steady-state process to motor carries out finite element analysis.Motor speed
1500r/min, it is 10ms to take an emulation cycle time, in the case of obtaining rotor tooth both sides open semicircle shape auxiliary tank and not slotting
Switched reluctance machines transient torque comparison diagram.It can be seen that switched reluctance machines torque pulsation substantially reduces after fluting.
Through calculating the ripple torque coefficient of motor unslotted model is 35.20%, average torque 145.47N m, turn after fluting
Square coefficient of variation is 29.94%, and average torque is 148.45N m.From result of calculation, compared with unslotted model, torque arteries and veins
Dynamic coefficient declines 14.94%, and average torque increase by 2.05%, rotor tooth both sides not only significantly reduce torque arteries and veins after slotting
It is dynamic, and add average torque.
By above-mentioned description, those skilled in the art completely can be without departing from this item utility model technological thought
In the range of, various changes and amendments are carried out all within the scope of protection of the utility model.It is of the present utility model not most
Matters, belong to the common knowledge of those skilled in the art.
Claims (1)
- A kind of 1. modified switched reluctance machines, it is characterised in that：It includes stator（1）, rotor（2）With three-phase concentratred winding （3）；The rotor（2）Positioned at stator（1）Inside, the stator（1）And rotor（2）It is salient-pole structure, the stator（1） And rotor（2）Formed by silicon steel sheet laminated；The rotor（2）For straight trough rotor, rotor（2）Salient pole be rotor tooth（2-1）, the rotor tooth（2-1）Rotor tooth Side（2-1-1）Offer semicircle auxiliary tank（2-1-2）；The rotor tooth（2-1）For parallel teeth, rotor（2）On both without permanent magnet or without winding；The rotor flank of both sides（2-1-1）On be machined with semicircle auxiliary tank（2-1-2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720623292.3U CN207098899U (en) | 2017-06-01 | 2017-06-01 | A kind of modified switched reluctance machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720623292.3U CN207098899U (en) | 2017-06-01 | 2017-06-01 | A kind of modified switched reluctance machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207098899U true CN207098899U (en) | 2018-03-13 |
Family
ID=61551552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720623292.3U Expired - Fee Related CN207098899U (en) | 2017-06-01 | 2017-06-01 | A kind of modified switched reluctance machines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207098899U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034616A (en) * | 2019-04-19 | 2019-07-19 | 哈尔滨理工大学 | A kind of magneto-electric coupled damping noise reduction switched reluctance machines structure |
| CN111769662A (en) * | 2020-06-02 | 2020-10-13 | 珠海格力电器股份有限公司 | Rotor assembly and switched reluctance motor |
-
2017
- 2017-06-01 CN CN201720623292.3U patent/CN207098899U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110034616A (en) * | 2019-04-19 | 2019-07-19 | 哈尔滨理工大学 | A kind of magneto-electric coupled damping noise reduction switched reluctance machines structure |
| CN111769662A (en) * | 2020-06-02 | 2020-10-13 | 珠海格力电器股份有限公司 | Rotor assembly and switched reluctance motor |
| CN111769662B (en) * | 2020-06-02 | 2022-10-25 | 珠海格力电器股份有限公司 | Rotor assembly and switched reluctance motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180313 Termination date: 20190601 |
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| CF01 | Termination of patent right due to non-payment of annual fee |