CN102324825A - Five-phase permanent magnetism synchronization direct current brushless motor used for electric car - Google Patents
Five-phase permanent magnetism synchronization direct current brushless motor used for electric car Download PDFInfo
- Publication number
- CN102324825A CN102324825A CN201110280281A CN201110280281A CN102324825A CN 102324825 A CN102324825 A CN 102324825A CN 201110280281 A CN201110280281 A CN 201110280281A CN 201110280281 A CN201110280281 A CN 201110280281A CN 102324825 A CN102324825 A CN 102324825A
- Authority
- CN
- China
- Prior art keywords
- phase
- direct current
- winding
- current brushless
- 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.)
- Pending
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Abstract
The invention discloses a five-phase permanent magnetism synchronization direct current brushless motor used for an electric car to order to overcome defects of low efficiency, small torque, small power density, small speed regulation scope and the like of a motor in the prior art. The five-phase permanent magnetism synchronization direct current brushless motor comprises a stator with a five-phase star connection winding and a permanent magnet rotator which is in rotation relative to the stator, and current going through the winding changes a direction when the permanent magnet rotor rotates to a corresponding position. According to the above structure, since five phase windings switch continuously, at least four phase windings work simultaneously, after entering a saturation state, a rotating speed will not decrease obviously, positioning torque is large, and pulsation is small; torque directly starts load without deceleration, reaction speed is fast, torque large enough can be generated in conditions of locked rotor and low speed to run smoothly without damaging the motor and a controller, starting is smooth and power density is large; winding phase conversion avoids a problem of maintaining an electromagnetic torque and a magnetic steel magnetic pole to form a 90-degree angle.
Description
Technical field
The present invention relates to a kind of non-brush permanent-magnet DC motor, particularly electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines.
Background technology
Along with the development of market economy and industry technology, the consumer is also improving constantly the understanding and the requirement of product.Various places motor manufacturer is constantly attempting in all sorts of ways raising electric efficiency and torque, and being intended to provides performance more stable to market, the motor of the consumer demand of more fitting.Comparatively common solution has at present: increase magnet steel magnetic flux, change spindle thickness or change spindle and hub diameter or the like.These methods can solve some problems to a certain extent.But the factor that is restricted is also many, as: the control that magnet steel magnetizes, the absolute value of moment of inertia was very big when the increase of spindle thickness made electric motor starting, and the electric motor starting electric current is bigger, and the motor jitter amplitude is big, and the quality of position transducer and controller is bigger; Increase spindle and hub diameter and can make that again production cost increases substantially.
Summary of the invention
To the problems referred to above, the present invention provides that a kind of rotating speed is high, moment of torsion is big, stable performance and the relatively low electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines of cost.
For achieving the above object; Electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines of the present invention; Comprise: have the stator of five phase Y-connection windings and the PM rotor that rotates with respect to said stator, the electric current of the said winding of flowing through commutates when said PM rotor rotates to correspondence position.
Further; Electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines of the present invention; Also comprise: be used for the transducer of the said PM rotor of perception, and change electric current in the stator winding so that the controller that PM rotor rotates with respect to stator according to the output of transducer with respect to position of stator.
Further, said transducer is five, corresponds respectively to the winding setting of described five phase Y-connections.
Especially, said transducer is Hall element or optical pickocff.
Especially, the output signal of said controller converts the sine voltage signal into behind inverter circuit; Thereupon, the air-gap flux waveform of motor is sinusoidal wave, and the current waveform of the said winding of flowing through is for sinusoidal wave.
Especially, said winding is short square winding.
Further, phase line is output as 5.
Further, described PM rotor is made up of 2～100 magnet steel.
Further, said stator circumferentially is provided with 5～100 grooves.
The invention has the beneficial effects as follows:
1, electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines according to the invention; All the time can both guarantee to have at least four phase windings to work at the same time during work, the obvious step-down of rotating speed meeting when common three motors get into saturation condition, and also moment of torsion is also less; And motor according to the invention rotating speed when getting into saturation condition does not obviously descend; Moment of torsion also can be bigger by about 20% than common three motors, so winding utilization is improved, electric efficiency further improves;
2, traditional three phase electric machine is when nominal torque, and rotor torque change amount on diverse location is very big, especially when the slow-speed of revolution, more is easy to generate torque pulsation, and electric bicycle just belongs to Low speed electric motor with motor itself.Motor of the present invention has adopted five phase windings just, many torque pulsation problem is solved in magnetic field; Have wideer speed adjustable range, can directly start load without slowing down, reaction speed is fast; Electro mechanic time constant is little, is about tens seconds to a few tens of milliseconds, and motor location moment of torsion is big; It is little to pulse, and starts smoothly, can under stall and low speed, move; Can produce enough big torque under the stall situation and not damage motor and controller, it is big well to have solved motor location moment of torsion, big this conventional theoretical contradiction point of pulsation; Also can even running under very low rotating speed, to be that per minute is several go to the tens speed fluctuations of walking around and only account for about 5% of total rotating speed rotating speed.
3, mostly traditional three phase electric machine is single-phase work; So it is saturated that motor is prone to, and five-phase induction motor according to the invention is the double winding parallel operation, so extended the saturation depth of motor widely; The entire job platform widens 20% than general alternating current machine workbench, makes power of motor density improve greatly.
Description of drawings
Fig. 1 is five phase winding syndeton sketch mapes of specific embodiment of the present invention.
Embodiment
Below in conjunction with Figure of description the present invention is done further description.
As shown in Figure 1; Electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines of the present invention; Comprise: have the stator of five phase Y-connection windings 1 and the PM rotor that rotates with respect to said stator, the electric current of the said winding of flowing through commutates when said PM rotor rotates to correspondence position.
The electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines of said structure are because alternate continuous switching when work is worked so can obtain four phase windings at least simultaneously.The course of work is: be four phase windings are worked simultaneously at every turn, and last bridge two-phase, following bridge two-phase, decoding draws upper and lower bridge conducting truth table according to the transducer of correspondence position.The course of work of comparing three phase electric machine be each two work mutually and upper and lower bridge each one be conducted; The situation of power of motor deposit according to the invention and entering saturation region has raising by a relatively large margin; Rotating speed can obviously not descend when motor got into saturation condition; Moment of torsion also can be bigger by about 20% than common three phase electric machine, so winding utilization is improved, electric efficiency further improves.
Secondly; Because motor of the present invention adopts five phase windings, so whole stator all adopts the short distance winding, motor is when nominal torque; Rotor torque change amount on diverse location is very big; Especially when the slow-speed of revolution, more be easy to generate torque pulsation, this motor has adopted polyphase windings just, many torque pulsation problem is solved in magnetic field.Moreover electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines according to the invention can directly start load without slowing down; Its main cause is: motor according to the invention can both guarantee to have at least four phase windings to work simultaneously all the time; Be that upper and lower bridge respectively has two groups of windings to work simultaneously; The location moment of torsion of the former three phase electric machine simplex winding of its location torque ratio work is wanted big nearly 10NM, gets final product high-speed starting so the general electric motor car of electric motor starting according to the invention all need not to slow down.Motor reaction speed according to the invention is fast; Electro mechanic time constant is little, can reach tens seconds to a few tens of milliseconds, can under stall and low speed, move; Enough big torque be can produce under the stall situation and motor and controller do not damaged; Even also can even running under very low rotating speed, total to be per minute several goes to tens fluctuations of speed when changeing and only account for about 5% of rotating speed for rotating speed, startability be good.
As the present invention embodiment further; Described electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines; Also comprise: be used for the transducer of the said PM rotor of perception, and change electric current in the stator winding so that the controller that PM rotor rotates with respect to stator according to the output of transducer with respect to position of stator.
In a specific embodiment, described transducer can be five, corresponds respectively to the winding setting of described five phase Y-connections, is used for the position of real-time perception around said stator rotor rotated.Transducer is transformed into signal with the position of rotation of rotor and passes to controller, and said controller is according to each the phase winding predetermined order conducting of the said stator of signal controlling that receives, and the stator phase current changes with the position of rotation of rotor press the order commutation of being scheduled to.Motor according to the invention, simple in structure, reliable, easy to maintenance, operational efficiency is high.
Wherein, in the foregoing description, said transducer can be Hall element or optical pickocff.The output signal of said controller converts the sine voltage signal into behind inverter circuit; Thereupon, the air-gap flux waveform of motor is sinusoidal wave, and the current waveform of the said winding of flowing through is for sinusoidal wave.
Preferably, the winding described in the present invention is short square winding; Phase line is output as 5.
Electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines of the present invention, rotor is made up of 2-100 magnet steel, and corresponding stator circumferentially is provided with 5-100 groove; Have the following advantages: 1, motor is the fractional-slot motor, thereby starting torque is big, the pulsation moment of torsion is little, shake is little steadily.2, magnetic circuit is even, and Distribution of Magnetic Field is even, and the winding arrangement is reasonable, not only can boost productivity but also can improve system effectiveness.
Present domestic electric motor car industry generally adopts three-phase brushless dc motor, and five-phase induction motor will be higher than three phase electric machine in the frequency of circuit aspect adopting.The five-phase induction motor course of work is on two, twice windings are worked simultaneously, and the effective workbench of motor is compared common electric machine and widened 20%, and the work of three phase electric machine be singly go up, single winding work down, motor is prone to saturated; The five-phase induction motor winding adopts parallel operation, in running, just in case have one to damage mutually, also can not influence operating state, has an enormous advantage so five-phase induction motor is compared three phase electric machine.
More than; Be merely preferred embodiment of the present invention, but protection scope of the present invention is not limited thereto, any technical staff who is familiar with the present technique field is in the technical scope that the present invention discloses; The variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range that claim was defined.
Claims (9)
1. electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines; It is characterized in that; Comprise: have the stator of five phase Y-connection windings and the PM rotor that rotates with respect to said stator, the electric current of the said winding of flowing through commutates when said PM rotor rotates to correspondence position.
2. according to the said electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines of claim 1; It is characterized in that; Also comprise: be used for the transducer of the said PM rotor of perception, and change electric current in the stator winding so that the controller that PM rotor rotates with respect to stator according to the output of transducer with respect to position of stator.
3. according to the said electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines of claim 1, it is characterized in that said transducer is five, correspond respectively to the winding setting of described five phase Y-connections.
4. according to claim 2 or 3 said electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines, it is characterized in that said transducer is Hall element or optical pickocff.
5. according to the said electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines of claim 1, it is characterized in that the output signal of said controller converts the sine voltage signal into behind inverter circuit; Thereupon, the air-gap flux waveform of motor is sinusoidal wave, and the current waveform of the said winding of flowing through is for sinusoidal wave.
6. according to the said electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines of claim 1, it is characterized in that said winding is short square winding.
7. according to the said electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines of claim 1, it is characterized in that phase line is output as 5.
8. according to the said electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines of claim 1, it is characterized in that described PM rotor is made up of 2～100 magnet steel.
9. according to the said electric vehicle five phase permanent-magnet synchronous direct current brushless electric machines of claim 1, it is characterized in that said stator circumferentially is provided with 5～100 grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110280281A CN102324825A (en) | 2011-09-20 | 2011-09-20 | Five-phase permanent magnetism synchronization direct current brushless motor used for electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110280281A CN102324825A (en) | 2011-09-20 | 2011-09-20 | Five-phase permanent magnetism synchronization direct current brushless motor used for electric car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102324825A true CN102324825A (en) | 2012-01-18 |
Family
ID=45452511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110280281A Pending CN102324825A (en) | 2011-09-20 | 2011-09-20 | Five-phase permanent magnetism synchronization direct current brushless motor used for electric car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102324825A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104578662A (en) * | 2015-01-12 | 2015-04-29 | 夏阳 | Even number phase parallel structure and control for winding |
| CN105992937A (en) * | 2014-01-10 | 2016-10-05 | 罗伯特·博世有限公司 | Energizing and measuring the temperature of stator windings in an at least motor-driven electric polyphase machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116370A (en) * | 1994-08-01 | 1996-02-07 | 中国人民解放军海军工程学院 | Synchronous generator of three-phase ac and multi-phase rectification symultaneous power supply |
| US5838087A (en) * | 1996-08-30 | 1998-11-17 | Emerson Electric Co. | Reluctance machine |
| CN101237208A (en) * | 2007-02-01 | 2008-08-06 | 艾默生电气公司 | Low noise heating, ventilating and/or air conditioning (HVAC) systems |
| CN201422069Y (en) * | 2009-04-09 | 2010-03-10 | 名泰机械制造有限公司 | Five-phase direct-current brushless motor for electric vehicle |
| CN202268791U (en) * | 2011-09-20 | 2012-06-06 | 名泰机械制造有限公司 | Five-phase permanent-magnet synchronous DC brushless motor used for electric vehicle |
-
2011
- 2011-09-20 CN CN201110280281A patent/CN102324825A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116370A (en) * | 1994-08-01 | 1996-02-07 | 中国人民解放军海军工程学院 | Synchronous generator of three-phase ac and multi-phase rectification symultaneous power supply |
| US5838087A (en) * | 1996-08-30 | 1998-11-17 | Emerson Electric Co. | Reluctance machine |
| CN101237208A (en) * | 2007-02-01 | 2008-08-06 | 艾默生电气公司 | Low noise heating, ventilating and/or air conditioning (HVAC) systems |
| CN201422069Y (en) * | 2009-04-09 | 2010-03-10 | 名泰机械制造有限公司 | Five-phase direct-current brushless motor for electric vehicle |
| CN202268791U (en) * | 2011-09-20 | 2012-06-06 | 名泰机械制造有限公司 | Five-phase permanent-magnet synchronous DC brushless motor used for electric vehicle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105992937A (en) * | 2014-01-10 | 2016-10-05 | 罗伯特·博世有限公司 | Energizing and measuring the temperature of stator windings in an at least motor-driven electric polyphase machine |
| US10254174B2 (en) | 2014-01-10 | 2019-04-09 | Robert Bosch Gmbh | Energizing and measuring the temperature of stator windings in an at least motor-driven electric polyphase machine |
| CN104578662A (en) * | 2015-01-12 | 2015-04-29 | 夏阳 | Even number phase parallel structure and control for winding |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103684196B (en) | A kind of PMSM Drive System of changeable winding | |
| CN104242521B (en) | A kind of bimodulus motor generator | |
| CN101789738B (en) | Device and method for controlling doubly salient permanent magnet motor | |
| CN104682779B (en) | The control method of Five-phase inverter double three-phase machine system | |
| CN100502226C (en) | Permanent-magnetic synchronous motor weak magnetic control system based on A. C. direct control | |
| CN1326315C (en) | Output torque depulsation control method for switch reluctance servo motor | |
| CN103956943A (en) | Efficient brushless direct current motor starting and control method | |
| CN1933286A (en) | Permanent magnetic brushless DC four-quadrant electric machine | |
| CN102324825A (en) | Five-phase permanent magnetism synchronization direct current brushless motor used for electric car | |
| CN102355186B (en) | Brake control method for permanent magnet synchronous motor | |
| CN202268791U (en) | Five-phase permanent-magnet synchronous DC brushless motor used for electric vehicle | |
| US8049458B2 (en) | Field winding type of synchronous rotary electric machine | |
| CN101106290A (en) | A permanent magnetic synchronization motor | |
| CN202374153U (en) | Five-phase permanent-magnet synchronous direct-current brushless motor for electric vehicles | |
| CN207460047U (en) | A kind of switched reluctance machines | |
| CN212627343U (en) | Four-phase 8-10 pole double armature winding reluctance motor | |
| JP6445698B2 (en) | Power supply device for internal combustion engine | |
| CN201142659Y (en) | Double-H bridge structure of permanent-magnet motor frequency conversion controller | |
| CN100536315C (en) | Permanent-magnetic synchronous motor weak magnetic control system based on A. C. indirect control | |
| JPH09252588A (en) | Compressor driving control method, double salient pole reluctance motor driving control method and their controllers | |
| CN208445458U (en) | A kind of synchronous switch reluctance motor | |
| CN201422069Y (en) | Five-phase direct-current brushless motor for electric vehicle | |
| CN215835338U (en) | Permanent magnet rotor motor structure | |
| Shi et al. | Sensorless Control Method for Wound-Field Doubly Salient Starter/Generator with Two-section Interlaced-Rotor Structure | |
| CN2909683Y (en) | Magnetic polar structure of switching reluctance motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120118 |