CN108900139A - The five phase magneto open-circuit fault fault tolerant control methods based on power principle of invariance - Google Patents
The five phase magneto open-circuit fault fault tolerant control methods based on power principle of invariance Download PDFInfo
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- 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
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- H02P23/04—Arrangements or methods for the control of AC motors characterised by a control method other than vector control specially adapted for damping motor oscillations, e.g. for reducing hunting
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- 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
- H02P25/16—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the circuit arrangement or by the kind of wiring
- H02P25/22—Multiple windings; Windings for more than three phases
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- 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
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/02—Providing protection against overload without automatic interruption of supply
- H02P29/032—Preventing damage to the motor, e.g. setting individual current limits for different drive conditions
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Abstract
The five phase magneto open-circuit fault fault tolerant control methods based on power principle of invariance, belong to multiphase fault-tolerant magneto field, the present invention is when solving conventional five-phase PMSM winding open-circuit fault, and output torque decline and fluctuation have security risk.The present invention is when occurring open-circuit fault, the electric current of open phase does not occur for adjustment, to maintain output power of motor constant, it effectively reduces five-phase induction motor and a phase winding open-circuit fault, adjacent or fault-tolerant operation when being separated by two phase winding open-circuit faults torque ripple occurs, while ensure that the least copper loss under fault-tolerant operation state.It can be used for constraining neutral point current using this method and do not constrain the five-phase induction motor drive system of neutral point current.
Description
Technical field
The invention belongs to multiphase fault-tolerant magneto field, the open-circuit fault for being related to motor is fault-tolerant.
Background technique
Since 21 century, with science and technology and economic rapid development, the environmental pollution and problem of energy crisis got worse
Have become the principal element for restricting human development.A series of tail gas pollutions of conventional fuel oil automobile bring, noise pollution and energy
The problems such as source wastes can not be ignored, and it is very urgent to develop new-energy automobile, wherein pure electric automobile due to its zero-emission and
The advantage of no pollution and by social concerns.For pure electric automobile, motor is its important component, when motor breaks down
And when losing normal operation ability, pure electric automobile will be unable to continue to travel, and therefore, it is necessary to study the high property of pure electric automobile
It can fault-tolerant motor.In comparison with three-phase motor with permanent magnets, five-phase PMSM has good due to the redundancy of its number of phases
Fault-tolerant operation ability.It can adjust the electric current of remaining phase winding by inverter, make when machine winding breaks down
Motor still has certain torque output capability.When winding open-circuit fault occurs for five-phase induction motor, each phase winding electric current of motor
It is no longer symmetrical, output torque decline, and along with violent torque ripple, such case can threaten vehicle and the peace of occupant
Entirely.It is therefore desirable to study the faults-tolerant control strategy of open-circuit fault.
Summary of the invention
When the invention aims to solve conventional five-phase PMSM winding open-circuit fault, output torque decline and
, there is security risk, it is fault-tolerant to provide a kind of five phase magneto open-circuit faults based on power principle of invariance in fluctuation
Control method.
The five phase magneto open-circuit fault fault tolerant control methods of the present invention based on power principle of invariance include six
Scheme.
The first string：One-phase open circuit, not constraining neutral point current is zero.
Illustrate do not constraining neutrality when open-circuit fault occurs for any one phase winding of motor by taking A phase winding open circuit as an example
Under conditions of point electric current is zero, the open-circuit fault fault tolerant control method is：
The electric current of adjustment B, C, D, E phase winding is pressed
It works, to maintain output power of motor constant；
In formula：ibFor B phase current after adjustment, icFor C phase current after adjustment, idFor D phase current after adjustment, ieFor E after adjustment
Phase current；TrFor the electromagnetic torque under motor normal operating condition；ωmFor rotor machinery angular speed；E0It is anti-for empty load of motor
Potential fundamental voltage amplitude；
Coefficient k1By formulaIt obtains.
Second scheme：One-phase open circuit, constraint neutral point current is zero.
Illustrate by taking A phase winding open circuit as an example when open-circuit fault occurs for any one phase winding of motor, in constraint neutral point
Under conditions of electric current is zero, the open-circuit fault fault tolerant control method is：
The electric current of adjustment B, C, D, E phase winding is pressed
It works, to maintain output power of motor constant；
In formula：ibFor B phase current after adjustment, icFor C phase current after adjustment, idFor D phase current after adjustment, ieFor E after adjustment
Phase current；TrFor the electromagnetic torque under motor normal operating condition；ωmFor rotor machinery angular speed；E0It is anti-for empty load of motor
Potential fundamental voltage amplitude；
Coefficient k1It presses
It obtains；
Coefficient k2It presses
It obtains
It takes.
Third scheme：Adjacent two-phase open circuit, not constraining neutral point current is zero.
Explanation is not being constrained when open-circuit fault occurs for two phase winding of motor arbitrary neighborhood by taking A, B phase winding open circuit as an example
Under conditions of neutral point current is zero, the open-circuit fault fault tolerant control method is：
The electric current of adjustment C, D, E phase winding is pressed
It works, to maintain output power of motor constant；
In formula：icFor C phase current after adjustment, idFor D phase current after adjustment, ieFor E phase current after adjustment；TrJust for motor
Electromagnetic torque under normal operating status；ωmFor rotor machinery angular speed；E0For empty load of motor back-emf fundamental voltage amplitude；
Coefficient k1It presses
It obtains.
4th scheme：Adjacent two-phase open circuit, constraint neutral point current is zero.
Explanation is when open-circuit fault occurs for two phase winding of motor arbitrary neighborhood by taking A, B phase winding open circuit as an example, in constraint
Under conditions of property point electric current is zero, the open-circuit fault fault tolerant control method is：
The electric current of adjustment C, D, E phase winding is pressed
It works, to maintain output power of motor constant；
In formula：icFor C phase current after adjustment, idFor D phase current after adjustment, ieFor E phase current after adjustment；TrJust for motor
Electromagnetic torque under normal operating status；ωmFor rotor machinery angular speed；E0For empty load of motor back-emf fundamental voltage amplitude；
Coefficient k1It presses
It obtains；
Coefficient k2It presses
It obtains.
5th scheme：It is separated by two-phase open circuit, not constraining neutral point current is zero.
When illustrating that being arbitrarily separated by two phase windings occurs open-circuit fault by taking A, C phase winding open circuit as an example, neutral point is not being constrained
Under conditions of electric current is zero, the open-circuit fault fault tolerant control method is：
The electric current of adjustment B, D, E phase winding is pressed
It works, to maintain output power of motor constant；
In formula：ibFor B phase current after adjustment, idFor D phase current after adjustment, ieFor E phase current after adjustment；TrJust for motor
Electromagnetic torque under normal operating status；ωmFor rotor machinery angular speed；E0For empty load of motor back-emf fundamental voltage amplitude.
Coefficient k1It presses
It obtains.
6th scheme：It is separated by two-phase open circuit, constraint neutral point current is zero.
When illustrating that being arbitrarily separated by two phase windings occurs open-circuit fault by taking A, C phase winding open circuit as an example, in constraint neutral point electricity
Under conditions of stream is zero, the open-circuit fault fault tolerant control method is：
The electric current of adjustment B, D, E phase winding is pressed
It works, to maintain output power of motor constant；
In formula：ibFor B phase current after adjustment, idFor D phase current after adjustment, ieFor E phase current after adjustment；TrJust for motor
Electromagnetic torque under normal operating status；ωmFor rotor machinery angular speed；E0For empty load of motor back-emf fundamental voltage amplitude；
Coefficient k1It presses
It obtains；
Coefficient k2It presses
It obtains.
Preferably, the first string, third scheme and the 5th scheme can use five phase full-bridge inverters or five phases
Six leg inverters are powered.
Preferably, second scheme, the 4th scheme and the 6th scheme can be using five phase half-bridge inverters, five mutually complete
Bridge inverter or five phases, six leg inverter are powered.
Beneficial effects of the present invention：The present invention discloses a kind of five phase magneto open-circuit faults based on power principle of invariance
Fault tolerant control method.Under the premise of ensure that motor maximum output torque is constant, effectively reduces five-phase induction motor and occur one
The torque ripple of fault-tolerant operation when phase winding open-circuit fault and two phase winding open-circuit faults, while ensure that under fault-tolerant operation state
Least copper loss.
Detailed description of the invention
Fig. 1 is five phase half-bridge inverter topology schematic diagrames；
Fig. 2 is five phase full-bridge inverter topology schematic diagrames；
Fig. 3 is five phases, six leg inverter topology schematic diagram；
Fig. 4 is the winding space schematic diagram of five-phase PMSM；
Fig. 5 be using the method for the present invention to A phase winding open circuit, under the conditions of not constraining neutral point current by remaining B, C,
D, four phase winding of E phase, which is powered, guarantees each phase current waveform figure of motor output smoothing torque；
Fig. 6 be using the method for the present invention to A phase winding open circuit, under the conditions of constraining neutral point current by remaining B, C, D,
Four phase winding of E phase, which is powered, guarantees each phase current waveform figure of motor output smoothing torque；
Fig. 7 be using the method for the present invention to A, B phase winding open circuit, under the conditions of not constraining neutral point current by remaining C,
D, E phase three-phase windings, which are powered, guarantees each phase current waveform figure of motor output smoothing torque；
Fig. 8 is to A, B phase winding open circuit, in the case where constraining neutral point current part using the method for the present invention by remaining C, D, E
Phase three-phase windings, which are powered, guarantees each phase current waveform figure of motor output smoothing torque；
Fig. 9 be using the method for the present invention to A, C phase winding open circuit, under the conditions of not constraining neutral point current by remaining B,
D, E phase three-phase windings, which are powered, guarantees each phase current waveform figure of motor output smoothing torque；
Figure 10 be using the method for the present invention to A, C phase winding open circuit, under the conditions of constraining neutral point current by remaining B,
D, E phase three-phase windings, which are powered, guarantees each phase current waveform figure of motor output smoothing torque；
Figure 11 is using the method for the present invention to motor when being powered after A phase winding open circuit by remaining tetra- phase winding of B, C, D, E
Output torque waveform diagram；
Figure 12 is using the method for the present invention to motor when being powered after A, B phase winding open circuit by remaining C, D, E three-phase windings
Output torque waveform diagram；
Figure 13 is using the method for the present invention to motor when being powered after A, C phase winding open circuit by remaining B, D, E three-phase windings
Output torque waveform diagram.
Specific embodiment
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, how to apply to the present invention whereby
Technological means solves technical problem, and the realization process for reaching technical effect can fully understand and implement.It needs to illustrate
As long as not constituting conflict, each feature in each embodiment and each embodiment in the present invention can be combined with each other,
It is within the scope of the present invention to be formed by technical solution.
Five-phase PMSM winding open-circuit fault faults-tolerant control described in present embodiment based on power principle of invariance
Method, what is provided is the constant situation of adjustment front and back five-phase induction motor instantaneous power.It can be used for constraining neutral point using this method
Electric current and the five-phase induction motor drive system for not constraining neutral point current.
The five phase magneto open-circuit fault fault tolerant control methods based on power principle of invariance, Five-phase inverter topology
As shown in Figure 1, Figure 2 and Figure 3, machine winding space schematic diagram is as shown in Figure 4.Five-phase PMSM A, B, C, D, E phase around
Every equivalent turns-in-series of group are N, and each phase winding axis spatially successively differs the electrical angle of 2 π/5, when five phase permanent-magnet synchronous
When motor works normally, it is I that A, B, C, D, E phase of stator winding, which pass to amplitude,m, angular frequency ω, initial phase angle beFive phases
Symmetrical sine electric current iA、iB、iC、iDAnd iE, i.e.,：
Each mutually unloaded back-emf of motor is respectively EA、EB、EC、EDAnd EE, since empty load of motor back-emf percent harmonic distortion is low,
It is considered that containing only fundamental wave component in unloaded back-emf, then the expression formula of motor instantaneous electromagnetic power is：
In formula：E0For unloaded back-emf fundamental voltage amplitude, j is each phase winding number, and j=0,1,2,3,4 respectively represents A, B,
C, D, E phase；TrFor the electromagnetic torque under motor normal operating condition；ωmFor rotor machinery angular speed.
There is open-circuit fault to be divided into any one phase open-circuit fault, adjacent two-phase open-circuit fault, be separated by two-phase open-circuit fault three
Class situation.
Every one kind failure is all divided into two kinds of situations, and one kind is zero not constrain neutral point current, and another kind is neutral for constraint
Point electric current is zero, and the fault tolerant control method of two kinds of situations is different, is illustrated respectively.
Wherein any one phase open-circuit fault is illustrated so that A phase is opened a way as an example, and the control strategy of other phase open circuits is constant.
Adjacent two-phase open-circuit fault is illustrated so that A, B phase are opened a way as an example, the control plan of other arbitrary neighborhood two-phase open circuits
It is slightly constant.
It is separated by two-phase open-circuit fault to be illustrated so that A, C phase are opened a way as an example, other control plans for being arbitrarily separated by two-phase open circuit
It is slightly constant.
One embodiment：A phase is opened a way, and not constraining neutral point current is zero.
In the case that A phase winding is opened a way, i.e. ia=0.It is consistent before the instantaneous electromagnetic power and failure that enable motor export,
It then needs to meet：
In formula：TrThe average torque exported for motor under normal operating condition.
If not constrain neutral point current be zero, the minimum objective function of copper loss can be introduced：
In formula：P is objective function, λ1For coefficient.
It is by the expression formula that lagrange's method of multipliers can solve remaining phase winding electric current：
In formula：ibFor B phase current after adjustment, icFor C phase current after adjustment, idFor D phase current after adjustment, ieFor E after adjustment
Phase current；TrFor the electromagnetic torque under motor normal operating condition；ωmFor rotor machinery angular speed；E0It is anti-for empty load of motor
Potential fundamental voltage amplitude.
It is set by adjusting the electric current of B, C, D, E phase winding, to maintain motor instantaneous output power constant, to guarantee motor
Even running, and copper olse is minimum when fault-tolerant operation.
Second embodiment：A phase is opened a way, and constraint neutral point current is zero.
When constraint neutral point current is zero, copper loss minimum can be introduced and neutral point current is zero as objective function：
In formula：P is objective function, λ1And λ2For coefficient.The expression formula for solving remaining four phase armature winding electric currents is as follows：
Third embodiment：A, B phase is opened a way, and not constraining neutral point current is zero.
When A, B phase winding open circuit, i.e. ia=ib=0.In order to maintain motor before and after failure to export instantaneous output power not
Become, needs to guarantee by adjusting C, D, E phase current the even running of motor.
If not constrain neutral point current be zero, the minimum objective function of copper loss can be introduced：
In formula：P is objective function, λ1For coefficient.
The expression formula of remaining threephase armature winding current is as follows：
In formula：icFor C phase current after adjustment, idFor D phase current after adjustment, ieFor E phase current after adjustment；TrJust for motor
Electromagnetic torque under normal operating status；ωmFor rotor machinery angular speed；E0For unloaded back-emf fundamental voltage amplitude.
4th embodiment：A, B phase is opened a way, and constraint neutral point current is zero.
If constraint neutral point current is zero, copper loss minimum can be introduced and neutral point current is zero as target letter
Number：
In formula：P is objective function, λ1And λ2For coefficient.
Obtaining remaining threephase armature winding current expression formula is：
5th embodiment：A, C phase is opened a way, and not constraining neutral point current is zero.
When A, C phase winding open circuit, i.e. ia=ic=0.In order to maintain motor before and after failure to export instantaneous output power not
Become, needs to guarantee by adjusting B, D, E phase current the even running of motor.
When not constrain neutral point current be zero, the minimum objective function of copper loss can be introduced：
In formula：P is objective function, λ1And λ2For coefficient.
It is as follows to solve remaining phase winding current expression：
In formula：ibFor B phase current after adjustment, idFor D phase current after adjustment, ieFor E phase current after adjustment；TrJust for motor
Electromagnetic torque under normal operating status；ωmFor rotor machinery angular speed；E0For unloaded back-emf fundamental voltage amplitude.
6th embodiment：A, C phase is opened a way, and constraint neutral point current is zero.It, can be with if constraining neutral point current when being zero
It introduces copper loss minimum and neutral point current is zero as objective function：
In formula：P is objective function, λ1And λ2For coefficient.
The case where other two-phases are opened a way is referring to upper type.
One phase winding is opened a way, adjacent two phase winding is opened a way and is separated by, and two phase windings open circuit is not constraining/is constraining neutral point electricity
It is powered under the conditions of stream by remaining phase winding and guarantees that each phase current waveform figure difference of motor output smoothing torque is as shown in Figure 5-10；
One phase winding open circuit, adjacent two phase winding open circuit and it is separated by motor output when remaining each phase winding after two phase windings open circuit is powered and turns
Rectangular waveform figure is as figs 11-13.
Based under power principle of invariance, after phase winding open circuit occurs for motor, if do not constrain neutral point current, it is averaged
Torque is 250.90Nm, can maintain the torque output under normal operating conditions, torque ripple 3.63%；If constraint is neutral
When point electric current is zero, average torque 248.96Nm, output torque can maintain the torque output under normal operating conditions, turn
Square fluctuation is 7.23%.
Based under power principle of invariance, after adjacent two phase winding open circuit occurs for motor, if do not constrain neutral point current,
Average torque is 250.73Nm, can maintain the torque output under normal operating conditions, torque ripple 5.75%；If constraint
When neutral point current is zero, average torque 247.78Nm, output torque can maintain the torque under normal operating conditions defeated
Out, torque ripple 7.46%.
Based under power principle of invariance, after motor is separated by two phase windings open circuit, if do not constrain neutral point current,
Average torque is 250.57Nm, can maintain the torque output under normal operating conditions, torque ripple 7.53%；If constraint
When neutral point current is zero, average torque 247.05Nm, output torque can maintain the torque under normal operating conditions defeated
Out, torque ripple 7.09%.
Although disclosed herein embodiment it is as above, the content is only to facilitate understanding the present invention and adopting
Embodiment is not intended to limit the invention.Any those skilled in the art to which this invention pertains are not departing from this
Under the premise of the disclosed spirit and scope of invention, any modification and change can be made in the implementing form and in details,
But scope of patent protection of the invention, still should be subject to the scope of the claims as defined in the appended claims.
Claims (8)
1. the five phase magneto open-circuit fault fault tolerant control methods based on power principle of invariance, which is characterized in that with A phase winding
Illustrate for open circuit when open-circuit fault occurs for any one phase winding of motor, in the condition that not constrain neutral point current be zero
Under, the open-circuit fault fault tolerant control method is：
The electric current of adjustment B, C, D, E phase winding is pressed
It works, to maintain output power of motor constant；
In formula：ibFor B phase current after adjustment, icFor C phase current after adjustment, idFor D phase current after adjustment, ieFor E phase electricity after adjustment
Stream；TrFor the electromagnetic torque under motor normal operating condition；ωmFor rotor machinery angular speed；E0For empty load of motor back-emf
Fundamental voltage amplitude；
Coefficient k1By formulaIt obtains.
2. the five phase magneto open-circuit fault fault tolerant control methods based on power principle of invariance, which is characterized in that with A phase winding
Illustrate for open circuit when open-circuit fault occurs for any one phase winding of motor, under conditions of constraining neutral point current is zero,
The open-circuit fault fault tolerant control method is：
The electric current of adjustment B, C, D, E phase winding is pressed
It works, to maintain output power of motor constant；
In formula：ibFor B phase current after adjustment, icFor C phase current after adjustment, idFor D phase current after adjustment, ieFor E phase electricity after adjustment
Stream；TrFor the electromagnetic torque under motor normal operating condition；ωmFor rotor machinery angular speed；E0For empty load of motor back-emf
Fundamental voltage amplitude；
Coefficient k1It presses
It obtains；
Coefficient k2It presses
It obtains.
3. the five phase magneto open-circuit fault fault tolerant control methods based on power principle of invariance, which is characterized in that with A, B phase around
Explanation is when open-circuit fault occurs for two phase winding of motor arbitrary neighborhood for group open circuit, in the item that not constrain neutral point current be zero
Under part, the open-circuit fault fault tolerant control method is：
The electric current of adjustment C, D, E phase winding is pressed
It works, to maintain output power of motor constant；
In formula：icFor C phase current after adjustment, idFor D phase current after adjustment, ieFor E phase current after adjustment；TrFor motor normal operation
Electromagnetic torque under state；ωmFor rotor machinery angular speed；E0For empty load of motor back-emf fundamental voltage amplitude；
Coefficient k1It presses
It obtains.
4. the five phase magneto open-circuit fault fault tolerant control methods based on power principle of invariance, which is characterized in that with A, B phase around
Explanation is when open-circuit fault occurs for two phase winding of motor arbitrary neighborhood for group open circuit, the condition for being zero in constraint neutral point current
Under, the open-circuit fault fault tolerant control method is：
The electric current of adjustment C, D, E phase winding is pressed
It works, to maintain output power of motor constant；
In formula：icFor C phase current after adjustment, idFor D phase current after adjustment, ieFor E phase current after adjustment；TrFor motor normal operation
Electromagnetic torque under state；ωmFor rotor machinery angular speed；E0For empty load of motor back-emf fundamental voltage amplitude；
Coefficient k1It presses
It obtains；
Coefficient k2It presses
It obtains.
5. the five phase magneto open-circuit fault fault tolerant control methods based on power principle of invariance, which is characterized in that with A, C phase around
When illustrating that being arbitrarily separated by two phase windings occurs open-circuit fault for group open circuit, under conditions of not constraining neutral point current is zero,
The open-circuit fault fault tolerant control method is：
The electric current of adjustment B, D, E phase winding is pressed
It works, to maintain output power of motor constant；
In formula：ibFor B phase current after adjustment, idFor D phase current after adjustment, ieFor E phase current after adjustment；TrFor motor normal operation
Electromagnetic torque under state；ωmFor rotor machinery angular speed；E0For empty load of motor back-emf fundamental voltage amplitude.
Coefficient k1It presses
It obtains.
6. the five phase magneto open-circuit fault fault tolerant control methods based on power principle of invariance, which is characterized in that with A, C phase around
When illustrating that being arbitrarily separated by two phase windings occurs open-circuit fault for group open circuit, under conditions of constraining neutral point current is zero, institute
Stating open-circuit fault fault tolerant control method is：
The electric current of adjustment B, D, E phase winding is pressed
It works, to maintain output power of motor constant；
In formula：ibFor B phase current after adjustment, idFor D phase current after adjustment, ieFor E phase current after adjustment；TrFor motor normal operation
Electromagnetic torque under state；ωmFor rotor machinery angular speed；E0For empty load of motor back-emf fundamental voltage amplitude；
Coefficient k1It presses
It obtains；
Coefficient k2It presses
It obtains.
7. according to claim 1, the 3 or 5 five phase magneto open-circuit fault faults-tolerant control sides based on power principle of invariance
Method, which is characterized in that five phase magnetoes under conditions of not constraining neutral point current is zero, using five phase full-bridge inverters or
Five phases, six leg inverter is powered.
8. the five phase magneto open-circuit fault faults-tolerant control sides according to claim 2,4 or 6 based on power principle of invariance
Method, which is characterized in that five phase magnetoes are under conditions of constraining neutral point current is zero, using five phase half-bridge inverters, five
Phase full-bridge inverter or five phases, six leg inverter are powered.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112468051A (en) * | 2020-11-13 | 2021-03-09 | 中国人民解放军海军工程大学 | Multiphase permanent magnet motor high-frequency vibration rapid analysis method and suppression strategy thereof |
| CN113364364A (en) * | 2021-06-25 | 2021-09-07 | 哈尔滨工业大学 | Open-circuit fault-tolerant control method for six-phase permanent magnet motor with adjustable torque fluctuation |
| RU2775819C1 (en) * | 2021-07-13 | 2022-07-11 | Акционерное общество "Конструкторское бюро промышленной автоматики " (АО КБПА) | Method for controlling an alternating current motor |
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| CN113364364B (en) * | 2021-06-25 | 2022-07-12 | 哈尔滨工业大学 | Open-circuit fault-tolerant control method for six-phase permanent magnet motor with adjustable torque fluctuation |
| RU2775819C1 (en) * | 2021-07-13 | 2022-07-11 | Акционерное общество "Конструкторское бюро промышленной автоматики " (АО КБПА) | Method for controlling an alternating current motor |
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