CN105322748B - A kind of seven phase winding permanent magnet synchronous brushless DC motors and its control method - Google Patents
A kind of seven phase winding permanent magnet synchronous brushless DC motors and its control method Download PDFInfo
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- CN105322748B CN105322748B CN201410379297.7A CN201410379297A CN105322748B CN 105322748 B CN105322748 B CN 105322748B CN 201410379297 A CN201410379297 A CN 201410379297A CN 105322748 B CN105322748 B CN 105322748B
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Abstract
The present invention relates to a kind of seven phase windings permanent magnet synchronous brushless DC motor and winding current reverse control method, the winding number of phases is seven multiple, and use six phase dutys, have relative to traditional three-phase winding motor present invention in the commutation of winding, stator, permanent magnet and electric current, the stock utilization of control unit and significantly lifted, the armature of traditional three-phase windings permagnetic synchronous motor, stator, permanent magnet and electric current are commutated, the stock utilization of control unit is substantially improved as 85.7% from 66.7%, enhancing rate is 28.5%.
Description
Technical field
The present invention relates to permagnetic synchronous motor technology, specifically a kind of seven phase windings permanent magnet synchronous brushless DC motor.
Background technology
The operation principle of traditional three-phase windings permanent magnet synchronous brushless DC motor is three-phase windings two-phase duty, three-phase
Have in winding a phase winding all the time in electric current commutation wait in, due to three-phase windings permanent magnet synchronous brushless DC motor around
Group, stator, permanent magnet and electric current commutation, the stock utilization of control device only have 66.7%, therefore there is following inferior position：1. by
In motor and electric current commutation, control device stock utilization it is relatively low, cause preciousness mineral resources waste it is larger；2 motors
Power density it is smaller；3. the starting torque of motor is relatively low；4. the operating efficiency of motor is relatively low；5. can not be normal after motor phase failure
Work；6. the volume and weight of motor is larger；7. the cost performance of motor is relatively low；8. the operating noise of motor is larger；9. motor
Job stability is poor.
The content of the invention
It is an object of the invention to provide a kind of seven phase windings permanent magnet synchronous brushless DC motor and winding current commutation control
Method processed, the winding number of phases is seven multiple, and uses six phase dutys, relative to traditional three-phase winding motor present invention around
Group, stator, permanent magnet and electric current commutation, have in the stock utilization of control unit and significantly lifted, by traditional three-phase around
The group armature of permagnetic synchronous motor, stator, permanent magnet and electric current commutation, the stock utilization of control unit from 66.7% significantly
85.7% is promoted to, enhancing rate is 28.5%.
Following technical scheme is used to achieve the above object：
A kind of seven phase winding permanent magnet synchronous brushless DC motors, including：One stator and a rotor for posting permanent magnet,
Stator is fixed on the motor on package header for the synchronous brshless DC motor of internal rotor permanent-magnetic, and the motor that stator is fixed on axle is
Outer rotor synchronization brushless direct current permanent magnet motor, it is characterised in that：Described stator uses 7 grooves or 7 multiple groove, and uses seven phases
The coiling of winding, rotor permanent magnet position sensor, seven described phase windings and rotor can be provided with the outer rim of stator tooth
Permanent magnet position sensor carries out circuit with winding current commutation, control device and is connected.
Described stator is to post 6 magnetic permanent magnet poles on 7 wire casings and 7 stator tooths, described rotor to correspond to therewith.
Described stator is right therewith using 52 permanent magnet poles on 56 wire casings and 56 each stator tooths, described rotor
Should.
Inventing brought advantage is：
1. the increase of the machine winding work number of phases make it that the utilization rate of electromagnetic material, current control device is higher, such as：Using
Stator be 7 wire casings, 6 permanent magnet poles by the winding of traditional three-phase winding motor, stator, permanent magnet and electric current commutation,
The stock utilization of control device is substantially improved as 85.7% from 66.7%, and enhancing rate is 28.5%, has significantly saved various treasure
Expensive mineral resources；
2. the power density of motor is substantially improved；
3. the starting torque of motor is substantially improved；
4. the operating efficiency of motor is higher, energy-saving effect is notable；
5. machine winding is even if lacking one to can also be operated close to normal operating mode after two-phase；
6. the volume and weight of motor significantly reduces；
7. the cost performance of motor is substantially improved；
8. the operating noise of motor is relatively low；
9. the job stability of motor is substantially improved.
Brief description of the drawings
Fig. 1-14 is the commutation timing diagram of 7 wire casings, 6 permanent magnet pole motors；
Figure 15-28 is the commutation timing diagram of 56 wire casings, 52 permanent magnet pole motors.
Embodiment
When Fig. 1-14 show the commutation of the phase permanent-magnet synchronous brushless electric machine of 7 wire casings, 6 permanent magnet poles seven of the present invention
Sequence is：The position signalling level of permanent magnet（Corresponding magnetic position sensor is A, B, C, D, E, F, G）It is followed successively by：0100101,
0101101,0101001,0101011,0101010,1101010,1001010,1011010,1010010,1010110,
1010100,1010101,0010101,0110101, totally 14 beats；Its seven windings（A、B、C、D、E、F、G）Input electricity
Stream direction is followed successively by：Positive and negative positive and negative nothing, no negative and positive negative and positive negative and positive is born without positive and negative positive negative and positive, negative and positive is without negative and positive negative and positive, negative and positive
Negative without positive negative and positive, negative and positive negative and positive is bearing nothing just without negative and positive, negative and positive negative and positive, and negative and positive negative and positive negative and positive is without positive without negative without positive and negative positive and negative
Positive and negative, positive and negative without positive and negative, positive negative and positive is negative without negative and positive, positive and negative without positive and negative, and positive and negative positive negative and positive is without negative, and totally 14 are changed
To order.
Figure 15-28 show the commutation of the phase permanent-magnet synchronous brushless electric machine of 56 wire casings, 52 permanent magnet poles seven of the present invention
Sequential is：The position signalling level of permanent magnet（Corresponding magnetic position sensor is A, B, C, D, E, F, G）It is followed successively by：0111111,
0011111,0001111,0000111,0000011,0000001,0000000,1000000,1100000,1110000,
1111000,1111100,1111110,1111111, totally 14 beats；Its seven windings（A、B、C、D、E、F、G）Input electricity
Stream direction is followed successively by：Negative and positive negative and positive is without negative and positive, and negative and positive negative and positive is negative without just, and negative and positive negative and positive negative and positive is without without positive and negative positive and negative, positive nothing
Negative and positive negative and positive is born, positive and negative without positive and negative, and positive negative and positive is negative without negative and positive, and positive and negative without positive and negative, positive and negative positive negative and positive is without negative, positive negative and positive
Negative and positive bears nothing, no negative and positive negative and positive negative and positive, just without positive and negative positive negative and positive, and positive and negative without negative and positive negative and positive, negative and positive is negative without positive negative and positive, and totally 14 are changed
To order.
The present invention is by the phase duty of seven phase winding six, by the commutation of the winding of motor, stator, permanent magnet and electric current, control
The stock utilization of device processed is substantially improved, therefore the advantage that the present invention is brought is：
1. due to seven phase motors and electric current commutation, control device stock utilization it is higher, by traditional three-phase windings
The winding of permanent magnet synchronous DC motor, stator, permanent magnet, electric current commutation, the stock utilization of control device are significantly carried from 66.7%
85.7% is upgraded to, enhancing rate is 28.5%, has significantly saved various precious mineral resources；
2. the power density of motor is substantially improved；
3. the starting torque of motor is substantially improved；
4. the operating efficiency of motor is higher, energy-saving effect is notable；
5. machine winding is even if lacking one to can also be operated close to normal operating mode after two-phase；
6. the volume and weight of motor significantly reduces；
7. the cost performance of motor is substantially improved；
8. the operating noise of motor is relatively low；
9. the job stability of motor is substantially improved.
Claims (2)
1. a kind of current control method of seven phase windings permanent magnet synchronous brushless DC motor, it is characterised in that：Stator using 7 grooves or
7 multiple groove, and using the coiling of seven phase windings, when stator uses 7 wire casings and 7 stator tooths, on rotor using 6 forever
Magnet poles, the outer rim in stator tooth pole is provided with rotor-position sensor, seven described phase windings and rotor-position sensor
Electric current commutation, control device with winding are electrically connected；Winding current commutation, control device receive rotor permanent magnet position sensing
The position signalling level of device is followed successively by：0111111,0011111,0001111,0000111,0000011,0000001,
0000000,1000000,1100000,1110000,1111000,1111100,1111110,1111111, totally 14 beats；Around
The input current direction that seven armatures are given in the commutation of group electric current, control device is followed successively by：Negative and positive negative and positive is born without negative and positive, negative and positive negative and positive
Without just, negative and positive negative and positive negative and positive is without just negative without negative and positive negative and positive without positive and negative positive and negative, positive and negative without positive and negative, positive negative and positive is without negative and positive
Negative, positive and negative without positive and negative, positive and negative positive negative and positive is without negative, positive and negative positive and negative nothing, no negative and positive negative and positive negative and positive, just without positive and negative
Just, positive and negative without negative and positive negative and positive, negative and positive is negative without positive negative and positive, totally 14 commutation sequences.
2. a kind of control method of seven phase windings permanent magnet synchronous brushless DC motor, it is characterised in that：Stator is using 7 grooves or 7
Multiple groove, and using the coiling of seven phase windings, when stator is used on 56 wire casings and 56 stator tooths, rotor using 52 permanent magnetism
Body magnetic pole is corresponded to therewith, and the outer rim in stator tooth pole is provided with rotor-position sensor, seven described phase windings and rotor-position
Sensor is commutated with the electric current of winding, control device is electrically connected；Winding current commutation, control device receive rotor position sensing
The position signalling level of device is followed successively by：0111111,0011111,0001111,0000111,0000011,0000001,
0000000,1000000,1100000,1110000,1111000,1111100,1111110,1111111, totally 14 beats；Around
The input current direction that seven windings are given in the commutation of group electric current, control device is followed successively by：Negative and positive negative and positive is born without negative and positive, negative and positive negative and positive
Without just, negative and positive negative and positive negative and positive is without just negative without negative and positive negative and positive without positive and negative positive and negative, positive and negative without positive and negative, positive negative and positive is without negative and positive
Negative, positive and negative without positive and negative, positive and negative positive negative and positive is without negative, positive and negative positive and negative nothing, no negative and positive negative and positive negative and positive, just without positive and negative
Just, positive and negative without negative and positive negative and positive, negative and positive is negative without positive negative and positive, totally 14 commutation sequences.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410379297.7A CN105322748B (en) | 2014-08-05 | 2014-08-05 | A kind of seven phase winding permanent magnet synchronous brushless DC motors and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410379297.7A CN105322748B (en) | 2014-08-05 | 2014-08-05 | A kind of seven phase winding permanent magnet synchronous brushless DC motors and its control method |
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| CN105322748A CN105322748A (en) | 2016-02-10 |
| CN105322748B true CN105322748B (en) | 2017-10-10 |
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| CN111371350B (en) * | 2020-03-30 | 2021-09-24 | 沈阳揽月工业设计有限公司 | Control method of full-magnetic-field direct-current motor system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692674A (en) * | 1985-04-26 | 1987-09-08 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Brushless DC motor control system responsive to control signals generated by a computer or the like |
| CN1871763A (en) * | 2003-09-10 | 2006-11-29 | 波峰实验室责任有限公司 | Multiphase motor winding topology and control |
| CN101411038A (en) * | 2005-12-23 | 2009-04-15 | 罗伯特.博世有限公司 | Electrical machine, especially alternator |
| CN204046388U (en) * | 2014-08-05 | 2014-12-24 | 章昭晖 | A kind of seven phase winding permanent magnet synchronous brushless DC motors |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008228529A (en) * | 2007-03-15 | 2008-09-25 | Masahiro Okegawa | Method and apparatus for driving control of permanent magnet synchronous motor |
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2014
- 2014-08-05 CN CN201410379297.7A patent/CN105322748B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4692674A (en) * | 1985-04-26 | 1987-09-08 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Brushless DC motor control system responsive to control signals generated by a computer or the like |
| CN1871763A (en) * | 2003-09-10 | 2006-11-29 | 波峰实验室责任有限公司 | Multiphase motor winding topology and control |
| CN101411038A (en) * | 2005-12-23 | 2009-04-15 | 罗伯特.博世有限公司 | Electrical machine, especially alternator |
| CN204046388U (en) * | 2014-08-05 | 2014-12-24 | 章昭晖 | A kind of seven phase winding permanent magnet synchronous brushless DC motors |
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