CN206932086U - Multi-tap winding wide speed-regulation permanent-magnet synchronous motor - Google Patents
Multi-tap winding wide speed-regulation permanent-magnet synchronous motor Download PDFInfo
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- CN206932086U CN206932086U CN201720549312.7U CN201720549312U CN206932086U CN 206932086 U CN206932086 U CN 206932086U CN 201720549312 U CN201720549312 U CN 201720549312U CN 206932086 U CN206932086 U CN 206932086U
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- winding
- phase electric
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- electric winding
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- 238000004804 winding Methods 0.000 title claims abstract description 74
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 14
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model discloses a kind of multi-tap winding wide speed-regulation permanent-magnet synchronous motor, including stator winding, the stator winding is on the stator tooth, the stator winding includes the phase electric winding being in series by least two coils, the phase electric winding sets three, three phase electric winding triangles connect or Y-connection, and at least one switch is parallel with the series coil of the phase electric winding；Wide range speed control can be achieved with using primary coil, be not required to increase new winding and mechanical device, electric machine structure is simple, and cost is low；During low speed, each phase electric winding has more coil turn, guarantee has sufficiently large output torque, with the raising of rotating speed, the closing of controlling switch can be passed through, the coil turn of each phase electric winding is reduced, now caused back-emf also reduces permanent magnetic field therewith in the windings, so that the motor invariable power range of speeds increases.
Description
Technical field
Permagnetic synchronous motor technical field is the utility model is related to, more particularly to a kind of multi-tap winding wide range speed control permanent magnetism is same
Walk motor.
Background technology
The permagnetic synchronous motor of the industries such as electric automobile, both required that motor had stronger torque output capability, to meet car
Starting, the power needed for operating mode such as accelerate, slow down, having wider speed adjustable range again, to adapt to electric automobile high-performance cruise
Demand.The back-emf of permagnetic synchronous motor increases with the increase of rotating speed, until reaching the pole that inverter is capable of output voltage
Limit.Now if do not adjusted to control method, rotating speed will be unable to continue to raise.In order to larger more than rated speed
In the range of run, weak magnetic control often is carried out to motor, weakens rotor field and brings the lifting of speed.In recent years, it is both domestic and external to be permitted
More research institutions and scholar have done substantial amounts of research work for the weak magnetic control of permagnetic synchronous motor, different control strategies and
Improved method is proposed in succession, and is applied in Practical Project.But weak magnetism speed expansion is relatively applied to interior permanent magnet machines, Er Qiekuo
The problems such as speed is limited in scope, while can also bring copper wastage to increase, and efficiency reduces.
In addition, there are some to switch or install additional the method for mechanical device change magnetic field size using double winding to realize electricity
The wide range speed control operation of machine, but such method increase cost, operating difficulties, actual application value are little.
Utility model content
The technical problems to be solved in the utility model, which is to provide one kind, need not increase winding and plant equipment, both simplify
Electric machine structure, the cost of motor is reduced, the multi-tap winding wide speed-regulation permanent-magnet synchronous motor of extra copper loss need not be increased again.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is：Multi-tap winding wide range speed control permanent-magnet synchronous
Motor, including stator winding, on the stator tooth, the stator winding is included by least two coils the stator winding
The phase electric winding being in series, the phase electric winding set three, and three phase electric winding triangles connect or Y-connection,
At least one switch is parallel with the series coil of the phase electric winding.
Further, the phase electric winding is in series by three coils.
Further, the switch in parallel one, the input connection of the switch in parallel in the phase electric winding
On the intermediate coil of the coil of three series connection, the output end of the switch is connected to the output end of the coil of three series connection.
Further, the switch in parallel two, the input of two switches in parallel in the phase electric winding
It is connected to the output end with first coil on the intermediate coil of the coil of three series connection, the output end connection of the switch
In the output end of the coil of three series connection.
Further, the stator winding is arranged on the interior permanent magnet machines or surface-mounted permanent magnet machine.
Had the beneficial effect that using what above-mentioned technical proposal the utility model obtained：1. wide tune can be achieved with using primary coil
Speed, it is not required to increase new winding and mechanical device, electric machine structure is simple, and cost is low；2. during low speed, each phase electric winding has more
Coil turn, guarantee has sufficiently large output torque, can be by the closing of controlling switch with the raising of rotating speed, will be each
The coil turn of phase electric winding is reduced, and now caused back-emf also reduces permanent magnetic field therewith in the windings, so that motor
The invariable power range of speeds increases；After the coil turn of each phase electric winding is reduced, resistance and inductance are reduced therewith, and dynamic response is more
It hurry up, copper loss is reduced, more efficient；3. it is applied widely, interior permanent magnet machines are not only suitable for, are applied to durface mounted permanent magnet electricity again
Machine；4. speed adjustable range is wide, tap number and position can be arranged as required to.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, before creative labor is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of embodiment of the present utility model；
Fig. 2 is the structural representation of the utility model another kind embodiment；
Fig. 3 is the elementary diagram of the groove motor of 8 pole 9；
Fig. 4 is existing machine winding wiring schematic diagram.
Embodiment
Specific embodiment of the present utility model is described further below in conjunction with the accompanying drawings.Herein it should be noted that
It is used to help understand the utility model for the explanation of these embodiments, but does not form to restriction of the present utility model.This
Outside, as long as technical characteristic involved in each embodiment of the utility model disclosed below does not form conflict each other
Can is mutually combined.
The utility model is further described with reference to accompanying drawing, person of ordinary skill in the field is preferably implemented this reality
With new, the utility model embodiment multi-tap winding wide speed-regulation permanent-magnet synchronous motor, including stator winding, the stator winding
On the stator tooth, the stator winding includes the phase electric winding that is in series by least two coils, the phase electricity around
Group sets three, and three phase electric winding triangles connect or Y-connection, in parallel on the series coil of the phase electric winding
There is at least one switch.
Phase electric winding described in the utility model embodiment is in series by three coils；The switch in parallel one, it is described
In phase electric winding the input of the switch in parallel be connected to three series connection coil intermediate coil on, the switch it is defeated
Go out to hold the output end for the coil for being connected to three series connection, switch in parallel two described in another embodiment, in the phase electric winding simultaneously
The input of two switches of connection be connected on the intermediate coil of the coil of three series connection and first coil it is defeated
Go out end, the output end of the switch is connected to the output end of the coil of three series connection.
Stator winding described in the utility model embodiment is arranged on the interior permanent magnet machines or surface-mounted permanent magnet machine.
With reference to accompanying drawing 3 and Fig. 4 by taking the groove Y type motors of 8 pole 9 as an example, Fig. 3 is corresponding connection principle, from fig. 4, it can be seen that per phase
Winding has that three groups of coils are in series, and conventional design is that three-phase windings draw tri- the end of a thread of A, B, C, the other three the end of a thread A ',
B ', C ' connect and compose star point.
The utility model winding connection schematic diagram is as shown in Figure 1 and Figure 2.Phase electric winding is no longer only that A, B, C tri- takes out
Head, tap number can depend on the needs, Fig. 4 be two level tap three-phase windings wiring schematic diagram.A phase windings are by three groups of coils
It is in series, A1 and A ' are one-level tap, and A2 and A ' are two level tap, tap when A2 is the intermediate coil half number of turn, and A2 takes out
Connected between head and A ' taps by electronic switch, the break-make of electronic switch controls as needed.B phases use A phase phases with C phases
Same tap mode, A ', B ', C ' are connected as star point and form two level tap three-phase windings star-star connection.When electronic switch disconnects
When, the number of turn of each phase electric winding is N, and back-emf caused by correspondence is E0；When electronic switch closes, each phase electric winding
The number of turn is kept to N/2, and back-emf caused by correspondence is E0/2, and the voltage limit that can be now exported away from inverter has larger model
Enclose, can continue to improve motor speed.
The three-phase windings of three-level tap can also be designed as needed, as shown in Figure 1.On the basis of original two level tap
Increase A3, B3, C3 and A ', B ', C ' tap, and connected respectively by switching K4, K5, K6.As K1, K2, K3, K4, K5, K6
When all disconnecting, the number of turn of each phase electric winding is N, and back-emf caused by correspondence is E0；When K1, K2, K3 are closed, K4, K5, K6 break
When opening, the number of turn of each phase electric winding is kept to N/2, and back-emf caused by correspondence is E0/2；As K1, K2, K3 disconnection, K4, K5, K6
During closure, the number of turn of each phase electric winding is kept to N/3, and back-emf caused by correspondence is E0/3, and now motor has higher speed-raising
Space.
Embodiment of the present utility model is explained in detail above in association with accompanying drawing, but the utility model is not limited to be retouched
The embodiment stated.For a person skilled in the art, it is right in the case where not departing from the utility model principle and spirit
These embodiments carry out a variety of change, modification, replacement and modification, still fall within the scope of protection of the utility model.
Claims (4)
1. multi-tap winding wide speed-regulation permanent-magnet synchronous motor, it is characterised in that：Including stator winding, the stator winding is embedded in institute
State on stator tooth, the stator winding includes the phase electric winding being in series by least two coils, and the phase electric winding is set
Three, three phase electric winding triangles connect or Y-connection, are parallel with least on the series coil of the phase electric winding
One switch.
2. multi-tap winding wide speed-regulation permanent-magnet synchronous motor according to claim 1, it is characterised in that：The phase electric winding by
Three coils are in series.
3. multi-tap winding wide speed-regulation permanent-magnet synchronous motor according to claim 2, it is characterised in that：The switch in parallel one
Individual, the input of the switch in parallel is connected on the intermediate coil of the coil of three series connection in the phase electric winding, described
The output end of switch is connected to the output end of the coil of three series connection.
4. multi-tap winding wide speed-regulation permanent-magnet synchronous motor according to claim 2, it is characterised in that：The switch in parallel two
Individual, the input of two switches in parallel is connected to the intermediate coil of the coil of three series connection in the phase electric winding
Upper and first coil output end, the output end of the switch are connected to the output end of the coil of three series connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720549312.7U CN206932086U (en) | 2017-05-17 | 2017-05-17 | Multi-tap winding wide speed-regulation permanent-magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720549312.7U CN206932086U (en) | 2017-05-17 | 2017-05-17 | Multi-tap winding wide speed-regulation permanent-magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206932086U true CN206932086U (en) | 2018-01-26 |
Family
ID=61352409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720549312.7U Expired - Fee Related CN206932086U (en) | 2017-05-17 | 2017-05-17 | Multi-tap winding wide speed-regulation permanent-magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206932086U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342736A (en) * | 2020-04-14 | 2020-06-26 | 华中科技大学 | Variable winding driving system of switched reluctance motor and online soft switching method |
| CN113315300A (en) * | 2020-02-27 | 2021-08-27 | 上海海立电器有限公司 | Compressor and motor thereof |
-
2017
- 2017-05-17 CN CN201720549312.7U patent/CN206932086U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113315300A (en) * | 2020-02-27 | 2021-08-27 | 上海海立电器有限公司 | Compressor and motor thereof |
| CN111342736A (en) * | 2020-04-14 | 2020-06-26 | 华中科技大学 | Variable winding driving system of switched reluctance motor and online soft switching method |
| CN111342736B (en) * | 2020-04-14 | 2021-11-02 | 华中科技大学 | A switched reluctance motor variable winding drive system and online soft switching method |
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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: 20180126 |
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| CF01 | Termination of patent right due to non-payment of annual fee |