CN207460047U - A kind of switched reluctance machines - Google Patents
A kind of switched reluctance machines Download PDFInfo
- Publication number
- CN207460047U CN207460047U CN201721545640.6U CN201721545640U CN207460047U CN 207460047 U CN207460047 U CN 207460047U CN 201721545640 U CN201721545640 U CN 201721545640U CN 207460047 U CN207460047 U CN 207460047U
- Authority
- CN
- China
- Prior art keywords
- rotor
- torque
- switched reluctance
- reluctance machines
- stator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Synchronous Machinery (AREA)
Abstract
A kind of switched reluctance machines, including stator, rotor and winding, stator and rotor are salient-pole structure, rotor pole arc one end is tilted to rotor axis direction, make to form a wedged air gap that one end is relatively narrow, one end is wider between rotor pole arc and stator polar arc, the utility model can not only be substantially reduced the torque pulsation of switched reluctance machines, but also add motor average torque by making traditional even air gap structure into two-part non-homogeneous gap structure.
Description
Technical field
The utility model is related to a kind of switched reluctance machines.
Background technology
Switched reluctance machines speed-adjusting driving system collection motor technology, Power Electronic Technique and automatically control microelectric technique
Innovation achievement and one, it is at low cost to wait uniqueness excellent with its simple in structure, efficient, easy, efficient stepless speed regulation of control
Point has become other strong competitors of type motor speed-adjusting driving system in industrial circle, has 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 power generation applied to wind-power electricity generation, aviation.However, compared with other types motor, switched reluctance machines have
Larger noise and torque pulsation, stator, the double-salient-pole structure of rotor causes flux portion extremely uneven and switch form
Power supply causes the torque on rotor to be formed by stacking by a series of pulse torques so that driving system for switched reluctance
As the coupling of multivariable height, the serious system of non-thread sexual abnormality, in operation torque pulsation clearly, and easily cause electricity
Machine noise affects application of the switched reluctance machines in the more demanding occasion of running quality.Domestic and foreign scholars are mainly from motor sheet
The torque pulsation of switched reluctance machines is reduced in terms of body structure optimization and control strategy two.However, the research of Most scholars
Control field is concentrated on, control strategy, variable-structure control strategy and the modern control theory that many scholars are distributed based on torque carry
Go out new control strategy, but these methods based on control field add the complexity and cost of controller.Therefore, based on opening
It closes the next torque pulsation inhibited coefficient of reluctance motor body construction research and obtains more and more scholars' attention.
The minishing method of existing torque pulsation is largely all based on Optimal Control Strategy progress, and which increase systems
Complexity and cost.And reduced based on research body construction in switched reluctance machines torque pulsation method, it is mostly fixed by increasing
Son and rotor number of poles and the number of phases reduce torque arteries and veins to reduce torque pulsation or increase permanent magnet in Stators for Switched Reluctance Motors
Dynamic method, equally, both approaches also both increase the complexity and cost of system.
The content of the invention
To solve the technical issues of present switched reluctance machines torque pulsation is larger, the utility model provides a kind of switch
Reluctance motor, it can be not only substantially reduced by making traditional even air gap structure into two-part non-homogeneous gap structure
The torque pulsation of switched reluctance machines, and add motor average torque..
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：
A kind of switched reluctance machines, including stator, rotor and winding, stator and rotor are salient-pole structure, rotor pole arc
One end is tilted to rotor axis direction, makes to form a wedge that one end is relatively narrow, one end is wider between rotor pole arc and stator polar arc
Shape air gap.
Stator and rotor are formed by silicon steel sheet laminated.The structure so that electric machine structure is very simple and robust.
The beneficial effects of the invention are as follows：Rotor pole arc can increase motor maximum induction position with stator polar arc wedged air gap
Rotor position angle when putting, so that a phase torque has decayed not yet, another phase torque has started to increase, this causes motor to close
Increase into output torque, Fill valley can be played the role of, caused torque pulsation when not only reducing commutation so that motor torque ripple
It is significantly decreased, and adds motor average torque, so as to achieve the purpose that inhibit switched reluctance machines torque pulsation, together
When average torque increased, advantageously reduce motor cost.
Description of the drawings
The utility model is described further below in conjunction with the accompanying drawings：
Fig. 1 is the structure diagram of the utility model.
Fig. 2 is the partial enlargement structural representation at A in Fig. 1.
Fig. 3 is switched reluctance machines inductance comparison of wave shape figure of the utility model compared with the uniform motor of existing air gap.
Fig. 4 is switched reluctance machines static torque comparison diagram of the utility model compared with the uniform motor of existing air gap.
Fig. 5 is switched reluctance machines transient torque comparison diagram of the utility model compared with the uniform motor of existing air gap..
Specific embodiment
The utility model is described in further detail in conjunction with attached drawing.These attached drawings are simplified schematic diagram, only
Illustrate the basic structure of the utility model in a schematic way, therefore it only shows the composition related with the utility model.
As illustrated in fig. 1 and 2, a kind of switched reluctance machines, including stator 1, rotor 2 and winding 3, rotor 2 is straight trough rotor
2, both without permanent magnet or without winding on rotor 2, stator 1 and rotor 2 are salient-pole structure, and 21 one end of rotor pole arc is to 2 axis of rotor
Line direction tilts, and makes to form a wedged air gap 4 that one end is relatively narrow, one end is wider between rotor pole arc 21 and stator polar arc 11.
Stator 1 and rotor 2 are formed by silicon steel sheet laminated.
As shown in Figure 3,4, static magnetic analysis is carried out to motor, selects current source analysis, using single-phase 3 excitation of winding, around
3 electric currents of group are by taking 20A as an example.Inductance waveform of the 2 pole-face new construction of rotor compared with existing uniform air gap machine is obtained by emulation
Comparison diagram and static torque comparison of wave shape figure.For 12 slots/rotor, 8 pole switching reluctance motors, existing uniform air gap machine is minimum
Inductive position is 0 ° of the initial position of motor, and maximum induction position is 2.5 °, i.e. stator 1,2 axis aligned position of rotor.Such as Fig. 3
Shown, for the utility model compared with the uniform motor of existing air gap, motor maximum induction position increases to 25 °.Switched reluctance machines
Forward torque is generated in inductance curve ascent stage, and braking moment is generated in the inductance curve decline stage.Improved model
Compared with archetype, inductance curve ascent stage accounting increases when rotor 2 rotates a rotor polar distance, while rotor 2 rotates
Motor generates the increase of forward torque stage accounting during one rotor polar distance.As shown in figure 4, the existing single-phase torque of uniform air gap machine
Start to decay for 2 to 17.5 ° in rotor, and the utility model torque starts to decay for 2 to 20 ° in rotor.Switched reluctance machines it is defeated
Go out torque be three-phase torque superposition and, and power inverter use single-phase angle of flow position control mode.Pass through two-part
Non-homogeneous gap structure so that a phase torque has decayed not yet, and another phase torque has started to increase, this so that motor synthesis is defeated
Go out torque increase, caused torque pulsation during so as to reduce commutation, and increase the average torque of motor, play Fill valley work
With.
As shown in figure 5, establishing model after motor optimizes by Ansoft Maxwell 2D transient analysis modules, connection is outer
Circuit builds complete Control System Imitation model, and finite element analysis is carried out to the torque for starting to steady-state process of motor.Electricity
Machine rotating speed 1500r/min takes an emulation cycle time as 10ms, obtains the utility model transient torque and traditional structure switch
Reluctance motor transient torque comparison diagram.It can be seen from the figure that the utility model torque pulsation is substantially reduced.It must be passed by calculating
The ripple torque coefficient of system motor model is 90.37%, average torque 127.35Nm, and the utility model ripple torque coefficient is
77.53%, average torque 129.54Nm.From result of calculation, compared with existing uniform air gap machine, the utility model
Torque pulsation coefficient declines 14.21%, and average torque increases by 1.72%, and the non-uniform gap structure that the utility model is formed is not only bright
Reduce motor torque ripple aobviously, and add average torque.
Claims (2)
1. a kind of switched reluctance machines, including stator（1）, rotor（2）And winding（3）, stator（1）And rotor（2）It is salient pole
Structure, it is characterised in that：Rotor pole arc（21）One end is to rotor（2）Axis direction tilts, and makes rotor pole arc（21）With stator poles
Arc（11）Between formed a wedged air gap that one end is relatively narrow, one end is wider（4）.
2. a kind of switched reluctance machines according to claim 1, it is characterised in that：Stator（1）And rotor（2）By silicon steel sheet
Laminated forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721545640.6U CN207460047U (en) | 2017-11-19 | 2017-11-19 | A kind of switched reluctance machines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721545640.6U CN207460047U (en) | 2017-11-19 | 2017-11-19 | A kind of switched reluctance machines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207460047U true CN207460047U (en) | 2018-06-05 |
Family
ID=62280302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721545640.6U Expired - Fee Related CN207460047U (en) | 2017-11-19 | 2017-11-19 | A kind of switched reluctance machines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207460047U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808900A (en) * | 2018-06-22 | 2018-11-13 | 淮北思尔德电机有限责任公司 | A kind of switched reluctance machines |
| CN110535312A (en) * | 2019-07-24 | 2019-12-03 | 安徽省奥斯特机电设备有限公司 | A kind of high-strength mining large torque directly drives outer rotor motor synchronizing electric drum |
-
2017
- 2017-11-19 CN CN201721545640.6U patent/CN207460047U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108808900A (en) * | 2018-06-22 | 2018-11-13 | 淮北思尔德电机有限责任公司 | A kind of switched reluctance machines |
| CN110535312A (en) * | 2019-07-24 | 2019-12-03 | 安徽省奥斯特机电设备有限公司 | A kind of high-strength mining large torque directly drives outer rotor motor synchronizing electric drum |
| CN110535312B (en) * | 2019-07-24 | 2022-02-18 | 安徽省奥斯特机电设备有限公司 | High-strength mining large-torque direct-drive outer rotor self-synchronizing electric roller |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107979321B (en) | Electro-magnetic doubly salient motor driving and charging integrated system with multiplexing excitation windings | |
| Cheng et al. | Control and operation of a new 8/6-pole doubly salient permanent-magnet motor drive | |
| Tian et al. | A novel line-start permanent magnet synchronous motor with 6/8 pole changing stator winding | |
| CN103337938B (en) | A kind of 12/4 pole simplex winding bearing-free switch reluctance motor and control method thereof | |
| CN104779760B (en) | Low-torque pulse electrically-excited double-salient brushless DC (Direct Current) motor and control system thereof | |
| CN205681272U (en) | Straight tiltedly compound stator winding slotless electric machines for artificial heart pump | |
| CN105915005B (en) | For straight tiltedly compound stator winding slotless electric machines and the optimization method of artificial heart pump | |
| CN208986794U (en) | A kind of combined type birotor low speed high torque synchronous motor | |
| Wang et al. | Analysis of electromagnetic performance and control schemes of electrical excitation flux-switching machine for DC power systems | |
| CN104993629B (en) | A kind of Wound-rotor type linear brushless double-fed generator | |
| CN102223131A (en) | Drive control method of fault tolerant type magnetic flux switching permanent magnet motor | |
| CN207460047U (en) | A kind of switched reluctance machines | |
| CN104506098A (en) | Low-power four-phase switched reluctance generator power converter | |
| CN109660099B (en) | Mixed excitation synchronous motor | |
| CN207098899U (en) | A kind of modified switched reluctance machines | |
| CN106411195A (en) | Brushless DC motor current change rate integral equivalent control method | |
| Tian et al. | Line-start permanent magnet synchronous motor starting capability improvement using pole-changing method | |
| CN208986796U (en) | A kind of composite fabricated rotor double-stator synchronous machine | |
| CN208158246U (en) | A kind of switched reluctance machines | |
| CN106533275B (en) | A kind of control method inhibiting torque pulsation of brushless DC motor | |
| Yuan et al. | Torque ripple suppression of doubly salient brushless DC motors with current compensation control | |
| EP2795775B1 (en) | Permanent magnet excited electric machine | |
| Jiang et al. | A Novel High-Order-Harmonic Winding Design in Hybrid-Excited Reluctance Machine for Electric Vehicle Application | |
| CN207265746U (en) | The groove fit structure of rotor | |
| Icfănuţi et al. | A novel design of stator ferrite PM single phase doubly salient small motor: FEM characterization and controlled dynamics |
Legal Events
| 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: 20180605 Termination date: 20181119 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |