CN107947666A - A kind of resistance parameter on-line identification method and device - Google Patents
A kind of resistance parameter on-line identification method and device Download PDFInfo
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- CN107947666A CN107947666A CN201711437679.0A CN201711437679A CN107947666A CN 107947666 A CN107947666 A CN 107947666A CN 201711437679 A CN201711437679 A CN 201711437679A CN 107947666 A CN107947666 A CN 107947666A
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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
- H02P21/00—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation
- H02P21/14—Estimation or adaptation of machine parameters, e.g. flux, current or voltage
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Abstract
The present invention provides a kind of resistance parameter on-line identification method and device, it is related to PMSM Drive System technical field.This method and device pass through the first d shaft currents for obtaining a motor and the first filtering voltage corresponding with the first d shaft currents；After being overlapped according to presetting current change quantity to the first d shaft currents, second filtering voltage corresponding with the first d shaft currents after the current change quantity that superposition is presetting is obtained, finally calculates final resistance parameter according to presetting current change quantity, the first filtering voltage and the second filtering voltage；Due to during final resistance parameter is calculated, according only to d shaft voltages variable quantity and d shaft current variable quantities, there are problems that relatively large deviation so as to avoid the resistance value calculated caused by the method that the voltage equation calculating stator resistance of motor is used in traditional approach, improve the computational accuracy and accuracy rate of stator resistance.
Description
Technical field
The present invention relates to PMSM Drive System technical field, more particularly to a kind of resistance parameter on-line identification side
Method and device.
Background technology
PMSM Drive System because its is efficient, energy density is big, be used widely by good speed adjustment features.But
Permanent magnet synchronous motor is more demanding to drive system, when drive system parameters and motor actual parameter have deviation, the drive of motor
Dynamic hydraulic performance decline, efficiency reduce, and may cause governing system can not normal operation when serious.Resistance parameter is the important ginseng of motor
One of number, and resistance is easily varied with temperature and changed, therefore it is very crucial to lifting drive system performance to recognize resistance parameter.
In traditional resistance calculations method, stator resistance is calculated according to the voltage equation of motor, is deposited in electric moter voltage equation
In inductance induced voltage item, and inductance parameters precision it is difficult to ensure that, causing the resistance value that calculates, there are relatively large deviation.
The content of the invention
In view of this, the present invention is directed to propose a kind of resistance parameter on-line identification method and device, to solve the above problems.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
In a first aspect, an embodiment of the present invention provides a kind of resistance parameter on-line identification method, the resistance parameter are online
Recognition methods includes：
Obtain the first d shaft currents of a motor and the first filtering voltage corresponding with the first d shaft currents；
The first d shaft currents are overlapped according to presetting current change quantity；
Second filtering voltage corresponding with the first d shaft currents after the current change quantity that superposition is presetting is obtained, wherein, fold
It is the 2nd d shaft currents to add the first d shaft currents after presetting current change quantity；
Final electricity is calculated according to first filtering voltage, presetting current change quantity and second filtering voltage
Hinder parameter.
Further, it is described according to first filtering voltage, presetting current change quantity and second filtering
The step of voltage calculating final resistance parameter, includes：
Pass through formula RS=(Ud2-Ud1)/(Id2-Id1) the final resistance parameter is calculated, wherein, the RSFor final electricity
Hinder parameter, Id1For the first d shaft currents, Id2For the 2nd d shaft currents, Ud1For the first filtering voltage, Ud2For the second filtering voltage.
Further, the resistance parameter on-line identification method further includes：
Obtain multiple 3rd d shaft currents of a motor and the 3rd filtered electrical corresponding with each 3rd d shaft currents
Pressure；
Each 3rd d shaft currents are overlapped according to presetting current change quantity；
The 4th filtering voltage corresponding with being each superimposed the 3rd d shaft currents after presetting current change quantity is obtained, its
In, it is the 4th d shaft currents to be superimposed the 3rd d shaft currents after presetting current change quantity；
The current change quantity presetting according to every group of superposition, the 3rd filtering voltage, the 4th filtering voltage calculate multiple initial
Resistance parameter；
Final resistance parameter is calculated according to multiple initial resistance parameters.
Further, described the step of calculating final resistance parameter according to multiple initial resistance parameters, includes：
The average value of multiple initial resistance parameters is determined as the final resistance parameter.
Further, it is determined as the final resistance parameter in the average value by multiple initial resistance parameters
Before step, described the step of determining final resistance parameter according to multiple initial resistance parameters, further includes：
Reject the outlier in multiple initial resistance parameters.
Second aspect, an embodiment of the present invention provides a kind of resistance parameter on-line identification device, the resistance parameter are online
Identification device includes：
Parameter acquiring unit, for obtaining the first d shaft currents and corresponding with the first d shaft currents the of a motor
One filtering voltage；
Electric current superpositing unit, for being overlapped according to presetting current change quantity to the first d shaft currents；
The parameter acquiring unit is additionally operable to obtain corresponding with the first d shaft currents after the current change quantity that superposition is presetting
The second filtering voltage, wherein, it is the 2nd d shaft currents to be superimposed the first d shaft currents after presetting current change quantity；
Computing unit, for according to first filtering voltage, presetting current change quantity and second filtering
Voltage calculates final resistance parameter.
Further, the computing unit is used to pass through formula RS=(Ud2-Ud1)/(Id2-Id1) calculate the final resistance
Parameter, wherein, the RSFor final resistance parameter, Id1For the first d shaft currents, Id2For the 2nd d shaft currents, Ud1For the first filtering
Voltage, Ud2For the second filtering voltage.
Further, the parameter acquiring unit be additionally operable to obtain the motor multiple 3rd d shaft currents and with it is every
Corresponding 3rd filtering voltage of a 3rd d shaft currents；
The electric current superpositing unit is additionally operable to carry out each 3rd d shaft currents according to presetting current change quantity
Superposition；
The parameter acquiring unit is additionally operable to obtain with being each superimposed the 3rd d shaft currents after presetting current change quantity
Corresponding 4th filtering voltage, wherein, it is the 4th d shaft currents to be superimposed the 3rd d shaft currents after presetting current change quantity；
The computing unit is additionally operable to the current change quantity presetting according to every group of superposition, the 3rd filtering voltage, the 4th filter
Wave voltage calculates multiple initial resistance parameters；
The computing unit is additionally operable to calculate final resistance parameter according to multiple initial resistance parameters.
Further, the computing unit be additionally operable to by the average value of multiple initial resistance parameters be determined as it is described most
Whole resistance parameter.
Further, the computing unit is additionally operable to reject the outlier in multiple initial resistance parameters.
Relative to the prior art, resistance parameter on-line identification method and device of the present invention has the advantage that：
Pass through the first d shaft currents for obtaining a motor and the first filtering voltage corresponding with the first d shaft currents；According to
After presetting current change quantity is overlapped the first d shaft currents, obtain be superimposed after presetting current change quantity the
Corresponding second filtering voltage of one d shaft currents, finally according to presetting current change quantity, the first filtering voltage and the second filter
Wave voltage calculates final resistance parameter；Due to during final resistance parameter is calculated, according only to d shaft voltages variable quantity and d
Shaft current variable quantity, so as to avoid the method that the voltage equation of motor calculates stator resistance is used in traditional approach, so as to keep away
There is relatively large deviation in the resistance value for having exempted to calculate caused by the inductance parameters included in voltage equation are unstable, carry
The high computational accuracy and accuracy rate of stator resistance.
Brief description of the drawings
The attached drawing for forming the part of the present invention is used for providing a further understanding of the present invention, schematic reality of the invention
Apply example and its explanation is used to explain the present invention, do not form inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is the circuit structure block diagram of PMSM Drive System provided in an embodiment of the present invention.
Fig. 2 is the circuit diagram of PMSM Drive System provided in an embodiment of the present invention.
Fig. 3 is the flow chart for the resistance parameter on-line identification method that first embodiment of the invention provides.
Fig. 4 is the flow chart for the resistance parameter on-line identification method that second embodiment of the invention provides.
Fig. 5 is the particular flow sheet of step S405 in Fig. 4.
Fig. 6 is the functional block diagram for the resistance parameter on-line identification device that third embodiment of the invention provides.
Icon：100- PMSM Drive Systems；110- parameter collection modules；120- drive modules；130- motors；
140- pulse width modulation modules；150- control modules；200- resistance parameter on-line identification devices；210- parameter acquiring units；220-
Electric current superpositing unit；230- computing units.
Embodiment
It should be noted that in the case where there is no conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
The present invention provides the PMSM Drive System 100, for driving permanent magnet synchronous motor 130 to run, and
Adjust the speed of service of permanent magnet synchronous motor 130.Referring to Fig. 1, driven for permanent magnet synchronous motor provided in an embodiment of the present invention
The circuit structure block diagram of system 100.The PMSM Drive System 100 includes parameter collection module 110, drive module
120th, pulse width modulation module 140, control module 150 and motor 130.Drive module 120 and parameter collection module 110, pulsewidth
Modulation module 140 and motor 130 are electrically connected, control module 150 and parameter collection module 110 and pulse width modulation module
140 are electrically connected.
Wherein, parameter collection module 110 is used to gathering the first d shaft currents of motor 130 and corresponding with the first d shaft currents
The first filtering voltage；And for gathering with being superimposed the first d shaft currents corresponding second after presetting current change quantity
Filtering voltage；And for gathering input voltage, input to the phase current of motor 130, busbar voltage etc., and by input voltage,
Input to the phase current of motor 130, busbar voltage and be transmitted to control module 150.
Referring to Fig. 2, the circuit diagram of PMSM Drive System 100 provided in an embodiment of the present invention.Permanent-magnet synchronous
Motor driven systems 100 include power circuit, rectification circuit, booster circuit, dc-link capacitance and inverter circuit.Wherein,
Power circuit, rectification circuit, booster circuit, dc-link capacitance and inverter circuit are sequentially connected electrically, inverter circuit and control
Module 150 is electrically connected.
Wherein, power circuit provides alternating current for circuit；It is direct current that rectification circuit, which is used for convert alternating current,；Boosting electricity
Road is used for the magnitude of voltage for adjusting dc-link capacitance；Dc-link capacitance is used to filter what is still had after rectified circuit rectifies
Alternating current；Inverter circuit is electrically connected with control module 150, under the control of pulse-width signal, output voltage to motor
130, realize the control to motor 130.
Control module 150 is used for according to the generation arteries and veins such as input voltage, the phase current of input a to motor 130, busbar voltage
Wide modulated signal.
Pulse width modulation module 140 is used in response to pulse-width signal and by adjusting the conducting state realization pair of inverter circuit
The control of 130 three-phase voltage of motor.
First embodiment
An embodiment of the present invention provides a kind of resistance parameter on-line identification method, for recognizing permanent magnet synchronous motor drivetrain
The resistance value of resistance parameter, i.e. stator resistance in system 100, to ensure driveability and efficiency to motor 130.Refer to figure
3, it is the flow chart of resistance parameter on-line identification method provided in an embodiment of the present invention.The resistance parameter on-line identification method bag
Include：
Step S301：Obtain the first d shaft currents of a motor 130 and the first filter corresponding with the first d shaft currents
Wave voltage.
When motor 130 is in stable state, the first d shaft currents of the motor 130 of the acquisition module 110 that gets parms collection
And the first filtering voltage corresponding with the first d shaft currents, and it is denoted as Ud1。
Step S302：The first d shaft currents are overlapped according to presetting current change quantity.
In this step, presetting current change quantity is injected in the first d shaft currents, to change d shaft currents.
It is to be appreciated that Id2=Id1+ΔId_Ref, wherein, Id1For the first d shaft currents, Δ Id_RefFor presetting electric current
Variable quantity, Id2For the first d shaft currents being superimposed after presetting current change quantity, i.e. the 2nd d shaft currents.
Step S303：Obtain second filtered electrical corresponding with the first d shaft currents after the current change quantity that superposition is presetting
Pressure.
Directly acquire the collection of parameter collection module 110 with being superimposed the first d shaft currents after presetting current change quantity
Corresponding second filtering voltage, and it is denoted as Ud2。
Step S304：Calculated according to the first filtering voltage, presetting current change quantity and the second filtering voltage final
Resistance parameter.
Specifically, final resistance parameter can be calculated by following formula：
RS=(Ud2-Ud1)/ΔId_Ref
Wherein, RSFor final resistance parameter, Δ Id_RefFor presetting current change quantity, Ud1For the first filtering voltage, Ud2
For the second filtering voltage.
Second embodiment
Referring to Fig. 4, Fig. 4 is a kind of flow for resistance parameter on-line identification method that present pre-ferred embodiments provide
Figure.It should be noted that the technology effect of the resistance parameter on-line identification method that the present embodiment is provided, its basic principle and generation
Fruit is identical with above-described embodiment, and to briefly describe, the present embodiment part does not refer to part, refers to corresponding in the above embodiments
Content.Resistance parameter on-line identification method provided in an embodiment of the present invention includes：
Step S401：Obtain multiple 3rd d shaft currents and corresponding with each 3rd d shaft currents of a motor 130
Three filtering voltages.
It should be noted that multiple 3rd d shaft currents can be the same or different, can be identical with the first d shaft currents,
Can also be different from the first d shaft currents, it is not particularly limited herein.In addition, each 3rd d shaft currents have corresponding
Three filtering voltages.
It should also be noted that, multiple 3rd d shaft currents and corresponding 3rd filtering voltage can be that parameter is adopted
The parameter that collection unit is gathered in different time.
In the present embodiment, the quantity of the 3rd d shaft currents to collecting does not carry out concrete restriction, its specific quantity
Can specifically it be set according to the demand of user.
Step S402：Each 3rd d shaft currents are overlapped according to presetting current change quantity.
Similarly, presetting current change quantity is injected in each 3rd d shaft currents, to change d shaft currents, to obtain
Take corresponding 3rd filtering voltage.
Step S403：The corresponding with being each superimposed the 3rd d shaft currents after presetting current change quantity the 4th is obtained to filter
Wave voltage.
Step S404：The current change quantity presetting according to every group of superposition, the 3rd filtering voltage, the 4th filtering voltage calculate
Multiple initial resistance parameters.
It should be noted that the 4th filtering voltage is according to presetting electricity by the corresponding d shaft currents of the 3rd filtering voltage
The parameter collected after stream variable quantity superposition.
Multiple initial resistance parameters are denoted as R respectivelys1、Rs2、……RsN。
Step S405：Final resistance parameter is calculated according to multiple initial resistance parameters.
Referring to Fig. 5, the particular flow sheet for step S405.Step S405 includes：
Sub-step S4051：Reject the outlier in multiple initial resistance parameters.
It is to be appreciated that when parameter collection module 110 gather parameter there are during problem, be calculated according to the parameter
Initial resistance parameter has larger deviation, if directly used, it is likely that and cause final result relatively large deviation also occur, because
And by rejecting the outlier in initial resistance parameter, the precision and accuracy rate of final calculation result can be improved.
Sub-step S4052：The average value of multiple initial resistance parameters is determined as final resistance parameter.
It is to be appreciated that final resistance parameter is：
Wherein, N is the number of initial resistance parameter.
The embodiment of the present invention by calculating multiple initial resistance parameters, and using the average value of multiple initial resistance parameters as
Final resistance parameter, adds the accuracy rate of final resistance parameter.
3rd embodiment
Referring to Fig. 6, Fig. 6 is a kind of work(for resistance parameter on-line identification device 200 that present pre-ferred embodiments provide
Can module map.It should be noted that the resistance parameter on-line identification device 200 that the present embodiment is provided, its basic principle and production
Raw technique effect is identical with above-described embodiment, and to briefly describe, the present embodiment part does not refer to part, refers to above-mentioned reality
Apply corresponding contents in example.Resistance parameter on-line identification device 200 provided in an embodiment of the present invention includes：Parameter acquiring unit 210,
Electric current superpositing unit 220 and computing unit 230.
Wherein, parameter acquiring unit 210 be used for obtain a motor 130 the first d shaft currents and with the first d shaft currents pair
The first filtering voltage answered.
It is to be appreciated that in a kind of preferred embodiment, parameter acquiring unit 210 can be used for performing step S301.
Electric current superpositing unit 220 is used to be overlapped the first d shaft currents according to presetting current change quantity.
It is to be appreciated that in a kind of preferred embodiment, electric current superpositing unit 220 can be used for performing step S302.
Parameter acquiring unit 210 is additionally operable to obtain corresponding with the first d shaft currents after the current change quantity that superposition is presetting
The second filtering voltage.
It is to be appreciated that in a kind of preferred embodiment, parameter acquiring unit 210 can also be used to perform step S303.
Computing unit 230 is based on according to the first filtering voltage, presetting current change quantity and the second filtering voltage
Calculate final resistance parameter.
Specifically, formula R is passed throughS=(Ud2-Ud1)/ΔId_RefThe final resistance parameter is calculated, wherein, the RSFor most
Whole resistance parameter, Δ Id_RefFor presetting current change quantity, Ud1For the first filtering voltage, Ud2For the second filtering voltage.
It is to be appreciated that in a kind of preferred embodiment, computing unit 230 can be used for performing step S304.
In a kind of preferred embodiment, parameter acquiring unit 210 is additionally operable to obtain multiple 3rd d axis electricity of motor 130
Stream and the 3rd filtering voltage corresponding with each 3rd d shaft currents.
It is to be appreciated that in a kind of preferred embodiment, parameter acquiring unit 210 can be used for performing step S401.
Electric current superpositing unit 220 is additionally operable to be overlapped each 3rd d shaft currents according to presetting current change quantity.
It is to be appreciated that in a kind of preferred embodiment, electric current superpositing unit 220 can be used for performing step S402.
Parameter acquiring unit 210 is additionally operable to obtain with being each superimposed the 3rd d shaft currents after presetting current change quantity
Corresponding 4th filtering voltage.
It is to be appreciated that in a kind of preferred embodiment, parameter acquiring unit 210 can also be used to perform step S403.
Computing unit 230 is additionally operable to the current change quantity presetting according to every group of superposition, the 3rd filtering voltage, the 4th filtering
Voltage calculates multiple initial resistance parameters.
It is to be appreciated that in a kind of preferred embodiment, computing unit 230 can be used for performing step S404.
Computing unit 230 is additionally operable to calculate final resistance parameter according to multiple initial resistance parameters.
Specifically, computing unit 230 joins multiple initial resistances after the outlier in rejecting multiple initial resistance parameters
Several average value is determined as final resistance parameter.
Wherein,
It is to be appreciated that in a kind of preferred embodiment, computing unit 230 can be used for performing step S405, sub-step
S4051 and sub-step S4052.
In conclusion resistance parameter on-line identification method and device of the present invention, by the first d for obtaining a motor
Shaft current and the first filtering voltage corresponding with the first d shaft currents；Electric to the first d axis according to presetting current change quantity
After stream is overlapped, second filtering voltage corresponding with the first d shaft currents after the current change quantity that superposition is presetting is obtained, most
Afterwards final resistance parameter is calculated according to presetting current change quantity, the first filtering voltage and the second filtering voltage；Due to
During calculating final resistance parameter, according only to d shaft voltages variable quantity and d shaft current variable quantities, so as to avoid tradition side
The method for calculating stator resistance using the voltage equation of motor in formula, joins so as to avoid due to the inductance included in voltage equation
Caused by number is unstable there is relatively large deviation in the resistance value that calculates, improve the computational accuracy of stator resistance and accurate
Rate.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
With within principle, any modification, equivalent replacement, improvement and so on, should all be included in the protection scope of the present invention god.
Claims (10)
- A kind of 1. resistance parameter on-line identification method, it is characterised in that the resistance parameter online recognition method includes：Obtain the first d shaft currents of a motor and the first filtering voltage corresponding with the first d shaft currents；The first d shaft currents are overlapped according to presetting current change quantity；Obtain second filtering voltage corresponding with the first d shaft currents after the current change quantity that superposition is presetting；Final resistance ginseng is calculated according to first filtering voltage, presetting current change quantity and second filtering voltage Number.
- 2. resistance parameter on-line identification method according to claim 1, it is characterised in that described according to the described first filtering The step of voltage, presetting current change quantity and second filtering voltage calculating final resistance parameter, includes：Pass through formula RS=(Ud2-Ud1)/ΔId_RefThe final resistance parameter is calculated, wherein, RSFor final resistance parameter, Δ Id_RefFor presetting current change quantity, Ud1For the first filtering voltage, Ud2For the second filtering voltage.
- 3. resistance parameter on-line identification method according to claim 1, it is characterised in that the resistance parameter on-line identification Method further includes：Obtain multiple 3rd d shaft currents of a motor and the 3rd filtering voltage corresponding with each 3rd d shaft currents；Each 3rd d shaft currents are overlapped according to presetting current change quantity；Obtain the 4th filtering voltage corresponding with being each superimposed the 3rd d shaft currents after presetting current change quantity；The current change quantity presetting according to every group of superposition, the 3rd filtering voltage, the 4th filtering voltage calculate multiple initial resistances Parameter；Final resistance parameter is calculated according to multiple initial resistance parameters.
- 4. resistance parameter on-line identification method according to claim 3, it is characterised in that described according to multiple described initial The step of resistance parameter calculating final resistance parameter, includes：The average value of multiple initial resistance parameters is determined as the final resistance parameter.
- 5. resistance parameter on-line identification method according to claim 4, it is characterised in that it is described will be multiple described initial It is described according to multiple initial resistance parameters before the step of average value of resistance parameter is determined as the final resistance parameter The step of determining final resistance parameter further includes：Reject the outlier in multiple initial resistance parameters.
- 6. a kind of resistance parameter on-line identification device, it is characterised in that the resistance parameter online recognition device includes：Parameter acquiring unit, for the first d shaft currents for obtaining a motor and the first filter corresponding with the first d shaft currents Wave voltage；Electric current superpositing unit, for being overlapped according to presetting current change quantity to the first d shaft currents；The parameter acquiring unit is additionally operable to obtain corresponding with the first d shaft currents after the presetting current change quantity of superposition the Two filtering voltages；Computing unit, for according to first filtering voltage, presetting current change quantity and second filtering voltage Calculate final resistance parameter.
- 7. resistance parameter on-line identification device according to claim 6, it is characterised in that the computing unit is used to pass through Formula RS=(Ud2-Ud1)/ΔId_RefThe final resistance parameter is calculated, wherein, the RSFor final resistance parameter, Δ Id_Ref For presetting current change quantity, Ud1For the first filtering voltage, Ud2For the second filtering voltage.
- 8. resistance parameter on-line identification device according to claim 6, it is characterised in that the parameter acquiring unit is also used In the multiple 3rd d shaft currents for obtaining the motor and the 3rd filtering voltage corresponding with each 3rd d shaft currents；The electric current superpositing unit is additionally operable to fold each 3rd d shaft currents according to presetting current change quantity Add；The parameter acquiring unit is additionally operable to obtain corresponding with being each superimposed the 3rd d shaft currents after presetting current change quantity The 4th filtering voltage；The computing unit is additionally operable to the current change quantity presetting according to every group of superposition, the 3rd filtering voltage, the 4th filtered electrical Pressure calculates multiple initial resistance parameters；The computing unit is additionally operable to calculate final resistance parameter according to multiple initial resistance parameters.
- 9. resistance parameter on-line identification device according to claim 8, it is characterised in that the computing unit be additionally operable to by The average value of multiple initial resistance parameters is determined as the final resistance parameter.
- 10. resistance parameter on-line identification device according to claim 9, it is characterised in that the computing unit is additionally operable to Reject the outlier in multiple initial resistance parameters.
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| CN201711437679.0A CN107947666A (en) | 2017-12-26 | 2017-12-26 | A kind of resistance parameter on-line identification method and device |
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| CN110865260A (en) * | 2019-11-29 | 2020-03-06 | 南京信息工程大学 | Method for monitoring and evaluating MOV actual state based on outlier detection |
| CN112838799A (en) * | 2021-03-01 | 2021-05-25 | 湖南大学 | Asynchronous motor optimal efficiency control method based on parameter online observation |
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| CN103248306A (en) * | 2013-05-24 | 2013-08-14 | 天津大学 | Online decoupling identification method of multiple parameters of PMSM (permanent magnet synchronous motor) |
| CN106788056A (en) * | 2016-11-21 | 2017-05-31 | 广东威灵电机制造有限公司 | The on-line identification method of motor stator resistance, device and electric machine control system |
| CN106788034A (en) * | 2016-12-30 | 2017-05-31 | 上海拓为汽车技术有限公司 | A kind of parameter of electric machine for intelligent braking controller diagnoses monitoring method |
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| CN103248306A (en) * | 2013-05-24 | 2013-08-14 | 天津大学 | Online decoupling identification method of multiple parameters of PMSM (permanent magnet synchronous motor) |
| CN106788056A (en) * | 2016-11-21 | 2017-05-31 | 广东威灵电机制造有限公司 | The on-line identification method of motor stator resistance, device and electric machine control system |
| CN106788034A (en) * | 2016-12-30 | 2017-05-31 | 上海拓为汽车技术有限公司 | A kind of parameter of electric machine for intelligent braking controller diagnoses monitoring method |
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| CN110865260A (en) * | 2019-11-29 | 2020-03-06 | 南京信息工程大学 | Method for monitoring and evaluating MOV actual state based on outlier detection |
| CN112838799A (en) * | 2021-03-01 | 2021-05-25 | 湖南大学 | Asynchronous motor optimal efficiency control method based on parameter online observation |
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Application publication date: 20180420 |