CN108390533A - A kind of high-speed permanent magnetic synchronous motor system - Google Patents
A kind of high-speed permanent magnetic synchronous motor system Download PDFInfo
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- CN108390533A CN108390533A CN201810271632.XA CN201810271632A CN108390533A CN 108390533 A CN108390533 A CN 108390533A CN 201810271632 A CN201810271632 A CN 201810271632A CN 108390533 A CN108390533 A CN 108390533A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
- H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/022—Synchronous motors
- H02P25/024—Synchronous motors controlled by supply frequency
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
- H02P27/08—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters with pulse width modulation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/10—Arrangements for controlling torque ripple, e.g. providing reduced torque ripple
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2207/00—Indexing scheme relating to controlling arrangements characterised by the type of motor
- H02P2207/05—Synchronous machines, e.g. with permanent magnets or DC excitation
- H02P2207/055—Surface mounted magnet motors
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Windings For Motors And Generators (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
Abstract
The present invention relates to a kind of high-speed permanent magnetic synchronous motor systems,Including motor and controller,Motor uses 6 pole, 36 slot,The double-deck integral pitch winding structure,Motor is made of motor module m and motor module n,Controller is made of the control module m being connect with motor module m and the control module n being connect with motor module n,Motor module m and motor module n is made of the three-phase windings of 120 ° of electrical angles of mutual deviation,Control module m is equal with the modulation wave amplitude of control module n,Phase is equal and carrier amplitude is equal,180 ° of carrier phase mutual deviation,Above-mentioned high-speed permanent magnetic synchronous motor system uses motor module and controller moduleization design,The especially carrier phase control strategy of controller module,So that the carrier wave ratio sideband harmonic torque caused by switching is offset by torque superposition,To reduce the torque pulsation of motor,Improve the operation stability of motor.
Description
Technical field
The present invention relates to technical field of motors, more particularly, to a kind of high-speed permanent magnetic synchronous motor system.
Background technology
Existing high-power, high-frequency high-speed PMSM Drive System, is limited to the power of controller switches device
And switching frequency, the mode of generally use controller multiple module paralleling power to motor.However, this mode is only outside motor
Simple power distribution is carried out, high-frequency electric machines carrier wave ratio (switching frequency/motor fundamental frequency) low, input current low order can not be solved
The high problem of harmonic content, makes motor generate larger torque pulsation when high frequency is run；Moreover, since breath magnetic field is humorous
The content of wave is high, and cogging torque is big, also motor can be made to generate larger torque pulsation when high frequency is run.On the other hand, motor
When high-speed cruising, armature winding current frequency is high, due to the influence of Kelvin effect and kindred effect, the high frequency of generation is made to hand over
Stream loss is big, simultaneously as high-speed electric expreess locomotive the number of turns is few, conductor is simultaneously more around radical, because notch is different with the magnetic field of slot bottom, and around
It also will produce additional circulation loss between conducting wire.In addition, when high speed operation of motor, rotor centrifugal force is big, and traditional surface-mount type is forever
The rotor ultimate strength that magnet and silicon steel laminations are constituted is low, so limiting the rotor linear velocity of motor, leads to the intensity of rotor
Not enough.In summary, current high-speed permanent magnetic synchronous motor drive system there are torque pulsations when high-speed cruising big, high-frequency ac
The problem that copper loss is big and rotor strength is insufficient, stability and reliability to motor produce harm.
Invention content
Technical problem to be solved by the invention is to provide a kind of torque pulsations that can reduce motor, to improve motor
The high-speed permanent magnetic synchronous motor system of operation stability.
The technical solution adopted in the present invention is a kind of high-speed permanent magnetic synchronous motor system, including motor and controller,
Motor 1 is made of using 6 pole, 36 slot, the double-deck integral pitch winding structure, motor motor module m and motor module n, controller by with
The control module m of motor module m connections and the control module n compositions being connect with motor module n, motor module m and motor
Module n is made of the three-phase windings of 120 ° of electrical angles of mutual deviation, is made of three coil groups per phase winding, each coil group is equal
It is made of two adjacent coils, each coil is connected by layer elements under one group at a distance of layer elements on one group of six slots
It constitutes, control module m is equal with the modulation wave amplitude of control module n, phase is equal and carrier amplitude is equal, carrier phase
180 ° of mutual deviation.
The beneficial effects of the invention are as follows：Above-mentioned high-speed permanent magnetic synchronous motor system uses motor module and controller mould
Blockization designs, especially the carrier phase control strategy of controller module, makes to be input in motor module m and motor module n
Fundamental current amplitude it is equal and phase is equal, and the harmonic current phase centered on the carrier wave ratio caused by switching
Deng 180 ° of phase mutual deviation；Using this kind of electric system structure, in motor, the torque that each motor module fundamental current generates is not
Become, but the torque that harmonic current generates is since phase has also differed 180 ° so that the carrier wave ratio sideband harmonic wave caused by switching turns
Square is offset by torque superposition, to make the torque pulsation of motor reduce, is reduced motor vibrations noise, is improved motor
Operation stability.On the other hand, since carrier wave ratio sideband harmonic torque is cancelled, the carrier wave of 2 times or more high magnification numbe is only remained
Than sideband harmonic torque, the switching frequency for being equivalent to controller improves 2 times, and such power drive system is in existing switch level item
Under part, so that it may to operate in higher frequency.
As priority, motor module m includes Am phase windings, Bm phase windings and Cm phase windings, the line that Am phase windings include
Circle is：Am1、Am2、Am13、Am14、Am25、Am26；The coil that Bm phase windings include is：Bm5、Bm6、Bm17、Bm18、Bm29、
Bm30；The coil that Cm phase windings include is：Motor is carried out modularization by Cm9, Cm10, Cm21, Cm22, Cm33, Cm34, cooperation
The controller of modularized design can reduce motor torque ripple, improve the stability of motor operation.
As priority, motor module n includes An phase windings, Bn phase windings and Cn phase windings, the line that An phase windings include
Circle is：An7、An8、An19、An20、An31、An32；The coil that Bn phase windings include is：Bn11、Bn12、Bn23、Bn24、
Bn35、Bn36；The coil that Cn phase windings include is：Motor is carried out modularization by Cn3, Cn4, Cn15, Cn16, Cn27, Cn28,
The controller of fit moduleization design, can reduce motor torque ripple, improve the stability of motor operation.
As priority, motor includes stator, and stator includes stator core and stator winding, and stator winding is by Ritz of replacing
Conducting wire is constituted, and the stator winding of motor constitutes stator winding using transposition Ritz conducting wire in the electric system, can reduce height
Frequency exchange winding copper loss and circulation loss.
As priority, motor further includes rotor, and rotor includes permanent magnet sheath, permanent magnet and shaft, permanent magnet sheath
Using high-strength carbon fiber, permanent magnet sheath can be wrapped on permanent magnet by applying pretightning force, reach fixed high speed and revolve
The purpose of the permanent magnet turned.
As priority, rotor is solid rotor structure, and shaft is made of the high-strength stainless steel with magnetic conductivity, using this
Structure, can be to ensure intensity of the rotor in high-speed cruising, while providing closed magnetic circuit.
As priority, permanent magnet use Halbach permanent array structure, can improve in this way air-gap field amplitude and
Sine improves power of motor density, while the magnetic field that can also reduce shaft is saturating to further decrease motor torque ripple
Enter.
As priority, control module m and control module n is all made of three-phase inverter, and control module m and control module n are equal
Using PWM control technologies.
As priority, the connection type of winding is all made of star in the connection type of winding and motor module n in motor module m
Every phase winding of type connection, motor module m and motor module n include positive electrode and negative electrode, and every phase winding of motor module m is just
It extremely draws from motor and is connect with control module m, the cathode of every phase winding of motor module m interconnects, motor
The anode of every phase winding of module n is drawn and is connect with control module n, the cathode of every phase winding of motor module n from motor
It interconnects.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of high-speed permanent magnetic synchronous motor system of the present invention；
Fig. 2 is the electric machine structure schematic diagram of 6 pole, 36 slot using modularized design in the present invention；
Fig. 3 is the structural schematic diagram of the winding of motor module m in the present invention；
Fig. 4 is the structural schematic diagram of the winding of motor module n in the present invention；
Fig. 5 is the wiring schematic diagram of the winding of motor module m in the present invention；
Fig. 6 is the wiring schematic diagram of the winding of motor module n in the present invention；
As shown in the figure：1, motor；2, control module m；3, control module n；4, stator core；5, stator winding；6, permanent magnetism
Body sheath；7, permanent magnet；8, shaft；9, lower layer elements；10, upper layer elements；11, coil.
Specific implementation mode
It invents referring to the drawings and in conjunction with specific implementation mode to further describe, to enable those skilled in the art's reference
Specification word can be implemented according to this, and the scope of the present invention is not limited to the specific implementation mode.
The present invention relates to a kind of high-speed permanent magnetic synchronous motor systems, as shown in Figure 1, including motor 1 and controller, motor
1 is made of using 6 pole, 36 slot, the double-deck integral pitch winding structure, motor 1 motor module m and motor module n, controller by with electricity
The control module m2 of machine module m connections and the control module n3 compositions being connect with motor module n, motor module m and motor
Module n is made of the three-phase windings of 120 ° of electrical angles of mutual deviation, is made of three coil groups per phase winding, each coil group is equal
It is made of two adjacent coils 11, each coil 11 is by layer elements 9 under one group and the layer elements on one group of six slots
10 are connected to constitute, and control module m2 is equal with the modulation wave amplitude of control module n3, phase is equal and carrier amplitude phase
Deng 180 ° of carrier phase mutual deviation, wherein control module m2 and control module n3 are for DC bus.
Control module m2 and control module n3 is all made of three-phase inverter, and control module m2 and control module n3 are all made of
PWM control technologies.
Motor 1 includes stator, and stator includes stator core 4 and stator winding 5, and stator winding 5 is by the Ritz conducting wire that replaces
It constitutes, the stator winding 5 of stator is constituted using transposition Ritz conducting wire in the electric system, can reduce high-frequency ac winding copper
Consumption and circulation loss.
In the present invention, motor 1 is using 6 pole, 36 slot, the double-deck integral pitch winding structure, as shown in Fig. 2, its stator core 4 has 36
A slot, stator winding 5 divide in upper layer and lower layer embedded groove.
As shown in Figure 3, Figure 4, under one group layer elements 9 on one group of 6 slots layer elements 10 be connected, one line of formation
11 are enclosed, coil is numbered in the slot number residing for following layer elements 9.In Fig. 3, including coil 11 be：Am1、Am2、Am13、
Am14, Am25, Am26, Bm5, Bm6, Bm17, Bm18, Bm29, Bm30, Cm9, Cm10, Cm21, Cm22, Cm33, Cm34, Fig. 4
In, including coil 11 be：An31、An32、An7、An8、An19、An20、Bn35、Bn36、Bn11、Bn12、Bn23、Bn24、
Cn3、Cn4、Cn15、Cn16、Cn27、Cn28。
1 MgO-ZrO_2 brick of motor is 2, i.e., adjacent 2 coils 11 are to be connected in series with, and constitute a coil group.It is wrapped in Fig. 3
The coil group included is：Am1_Am2、Bm5_Bm6、Cm9_Cm10、Am13_Am14、Bm17_Bm18、Cm21_Cm22、Am25_
Am26、Bm29_Bm30、Cm33_Cm34；The coil group that Fig. 4 includes is：An31_An32、An7_An8、An19_An20、
Bn35_Bn36、Bn11_Bn12、Bn23_Bn24、Cn3_Cn4、Cn15_Cn16、Cn27_Cn28。
As shown in Figure 5, Figure 6, motor module m and motor module n by 120 ° of electrical angles of mutual deviation A phases, B phases and C phases
Winding forms, and in Fig. 5,120 ° of Am phases, Bm phases and Cm phases mutual deviation electrical angles, the coil group that wherein Am phase windings include is：Am1_
Am2, Am13_Am14, Am25_Am26, three coil groups, 120 ° of mechanical angles of mutual deviation (being obtained from Fig. 3) in motor module m；
The coil group that Bm phase windings include is：Bm5_Bm6, Bm17_Bm18, Bm29_Bm30, three coil groups are mutual in motor module m
Poor 120 ° of mechanical angles (being obtained from Fig. 3)；The coil group that Cm phase windings include is：Cm9_Cm10、Cm21_Cm22、Cm33_
Cm34, three coil groups, 120 ° of mechanical angles of mutual deviation (being obtained from Fig. 3) in motor module m.In Fig. 6, An phases, Bn phases and Cn
120 ° of electrical angles of phase mutual deviation, in Fig. 6, An phase windings include：An7_An8, An19_An20, An31_An32, three coil groups exist
120 ° of mechanical angles (being obtained from Fig. 4) of mutual deviation in motor module m；Bn phase windings include：Bn11_Bn12、Bn23_Bn24、
Bn35_Bn36, three coil groups, 120 ° of mechanical angles of mutual deviation (being obtained from Fig. 4) in motor module m；Cn phase windings include：
Cn3_Cn4, Cn15_Cn16, Cn27_Cn28, three coil groups, 120 ° of mechanical angles of mutual deviation in motor module m (are obtained from Fig. 4
To).
Only under the above-mentioned method of salary distribution, it just can guarantee that the mechanical structure of 2 motor modules is also symmetrical, make each motor module
Inductance matrix it is symmetrical.
In Fig. 3, motor module m includes Am phase windings, Bm phase windings and Cm phase windings, the coil that Am phase windings include
For：Am1、Am2、Am13、Am14、Am25、Am26；The coil that Bm phase windings include is：Bm5、Bm6、Bm17、Bm18、Bm29、
Bm30；The coil that Cm phase windings include is：Cm9、Cm10、Cm21、Cm22、Cm33、Cm34.
In Fig. 4, motor module n includes An phase windings, Bn phase windings and Cn phase windings, the coil that An phase windings include
For：An7、An8、An19、An20、An31、An32；The coil that Bn phase windings include is：Bn11、Bn12、Bn23、Bn24、Bn35、
Bn36；The coil that Cn phase windings include is：Cn3、Cn4、Cn15、Cn16、Cn27、Cn28.
The present invention makes motor 1 and controller in the same of power distribution by using modularization simultaneously to motor 1 and controller
When, the PWM carrier phase control strategies between different control modules can also be utilized, the input harmonics of different motor modules are changed
Current phase reduces the torque pulsation of motor to eliminate main low-order harmonic torque by torque superposition in motor body.
By carrier phase and torque superposition strategy, it is equivalent to the equivalent switching frequency for improving controller, makes power drive system existing
Under the conditions of having switch level, higher frequency may operate in.
Motor 1 further includes rotor, and rotor includes permanent magnet sheath 6, permanent magnet 7 and shaft 8, and permanent magnet sheath 6 uses
Permanent magnet sheath 6 can be wrapped on permanent magnet 7 by applying pretightning force, reach fixed high speed rotation by high-strength carbon fiber
Permanent magnet 7 purpose.
As priority, rotor is solid rotor structure, and shaft 8 is made of the high-strength stainless steel with magnetic conductivity, is used
The structure, can be to ensure intensity of the rotor in high-speed cruising, while providing closed magnetic circuit.
Permanent magnet 7 uses Halbach permanent array structure, can improve the amplitude and sine of air-gap field in this way,
To further decrease motor torque ripple, power of motor density is improved, while the magnetic field that can also reduce shaft 8 penetrates.
Present invention employs Halbach permanent array structure, rotor carbon fiber sheath, solid rotor structure, Yi Jihuan
The advanced technologies such as position Ritz conducting wire, can further decrease motor torque ripple, and it is strong to improve electric machine structure for high-frequency ac loss
Degree, efficiency and power density.For motor high speed, multi-pole provide technical solution, particularly suitable for megawatt, kHz grade
Super high power, ultra-high frequency permanent-magnet synchronous power drive system.
Three coil groups of every phase winding of motor module m and motor module n can be linked together by connecting,
It can also be connected by parallel connection, but the connection type of each phase winding must be consistent, as shown in Figure 5, it is shown that motor
Three coil groups in every phase winding of module m are connected using concatenated mode, as shown in Figure 6, it is shown that motor module n's
Three coil groups in per phase winding are connected using concatenated mode.
Connection type in connection type and motor module n in motor module m per phase winding per phase winding can adopt
With wye connection, delta connection can also be used, as shown in Figure 5 and Figure 6, it is shown that use the motor module m of wye connection
Include positive electrode and negative electrode with every phase winding of motor module n, motor module m and motor module n, motor module m per mutually around
The anode of group uses U respectivelym、Vm、WmIt indicates, draws and connect with control module m, every phase winding of motor module m from motor
Cathode use X respectivelym、Ym、ZmIt indicates, interconnects, the anode of every phase winding of motor module n uses U respectivelyn、Vn、
WnIt indicates, drawn from motor and is connect with control module n, the cathode of every phase winding of motor module n uses X respectivelyn、Yn、Zn
It indicates, interconnects.
Claims (10)
1. a kind of high-speed permanent magnetic synchronous motor system, including motor (1) and controller, it is characterised in that：Motor (1) uses 6
36 slot of pole, the double-deck integral pitch winding structure, motor (1) are made of motor module m and motor module n, controller by with motor mould
The control module m (2) of block m connections and control module n (3) compositions being connect with motor module n, motor module m and motor
Module n is made of the three-phase windings of 120 ° of electrical angles of mutual deviation, is made of three coil groups per phase winding, each coil group is equal
It is made of two adjacent coils (11), each coil (11) is by layer elements (9) under one group and on one group of six slots
Layer elements (10) are connected to constitute, control module m (2) is equal with the modulation wave amplitude of control module n (3), phase it is equal with
And carrier amplitude is equal, 180 ° of carrier phase mutual deviation.
2. a kind of high-speed permanent magnetic synchronous motor system according to claim 1, it is characterised in that：Motor module m includes Am
Phase winding, Bm phase windings and Cm phase windings, the coil that Am phase windings include are：Am1、Am2、Am13、Am14、Am25、Am26；
The coil that Bm phase windings include is：Bm5、Bm6、Bm17、Bm18、Bm29、Bm30；The coil that Cm phase windings include is：Cm9、
Cm10、Cm21、Cm22、Cm33、Cm34。
3. a kind of high-speed permanent magnetic synchronous motor system according to claim 1, it is characterised in that：Motor module n includes An
Phase winding, Bn phase windings and Cn phase windings, the coil that An phase windings include are：An7、An8、An19、An20、An31、An32；
The coil that Bn phase windings include is：Bn11、Bn12、Bn23、Bn24、Bn35、Bn36；The coil that Cn phase windings include is：Cn3、
Cn4、Cn15、Cn16、Cn27、Cn28。
4. a kind of high-speed permanent magnetic synchronous motor system according to claim 1, it is characterised in that：Motor (1) includes stator,
Stator includes stator core (4) and stator winding (5), and stator winding (5) is made of the Ritz conducting wire that replaces.
5. a kind of high-speed permanent magnetic synchronous motor system according to claim 1 or claim 2, it is characterised in that：Motor
(1) further include rotor, rotor includes permanent magnet sheath (6), permanent magnet (7) and shaft (8), and permanent magnet sheath (6) is using high
Strength carbon fiber is made.
6. a kind of high-speed permanent magnetic synchronous motor system according to claim 3, it is characterised in that：Rotor is solid rotor knot
Structure, shaft (8) are made of the high-strength stainless steel with magnetic conductivity.
7. a kind of high-speed permanent magnetic synchronous motor system according to claim 3, it is characterised in that：Permanent magnet (7) uses
Halbach permanent array structure.
8. a kind of high-speed permanent magnetic synchronous motor system according to claim 1, it is characterised in that：Control module m (2) and control
Molding block n (3) is all made of three-phase inverter, and control module m (2) and control module n (3) are all made of PWM control technologies.
9. a kind of high-speed permanent magnetic synchronous motor system according to claim 1, it is characterised in that：Winding in motor module m
Connection type and motor module n in the connection type of winding be all made of wye connection.
10. a kind of high-speed permanent magnetic synchronous motor system according to claim 1, it is characterised in that：Motor module m and motor
Every phase winding of module n include positive electrode and negative electrode, every phase winding of motor module m anode from motor extraction and with control
Module m (2) connections, the cathode of every phase winding of motor module m interconnect, and every phase winding of motor module n is just
It extremely draws from motor and is connect with control module n (3), the cathode of every phase winding of motor module n interconnects.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810271632.XA CN108390533A (en) | 2018-03-29 | 2018-03-29 | A kind of high-speed permanent magnetic synchronous motor system |
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| CN201810271632.XA CN108390533A (en) | 2018-03-29 | 2018-03-29 | A kind of high-speed permanent magnetic synchronous motor system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110460295A (en) * | 2019-08-20 | 2019-11-15 | 宁波诺丁汉大学 | A kind of four unit permanent magnet synchronous motor dc-link capacitance current harmonics suppressing methods |
| CN110739792A (en) * | 2019-11-06 | 2020-01-31 | 南通大学 | double-layer winding Halbach fault-tolerant motor |
| CN110943557A (en) * | 2019-11-14 | 2020-03-31 | 湖南大学 | Halbach array permanent magnet synchronous motor |
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| CN110460295A (en) * | 2019-08-20 | 2019-11-15 | 宁波诺丁汉大学 | A kind of four unit permanent magnet synchronous motor dc-link capacitance current harmonics suppressing methods |
| CN110739792A (en) * | 2019-11-06 | 2020-01-31 | 南通大学 | double-layer winding Halbach fault-tolerant motor |
| CN110739792B (en) * | 2019-11-06 | 2021-01-12 | 南通大学 | Double-layer winding Halbach fault-tolerant motor |
| CN110943557A (en) * | 2019-11-14 | 2020-03-31 | 湖南大学 | Halbach array permanent magnet synchronous motor |
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