CN108631676A - Based on the switched reluctance motor controller anti-shaking method evenly distributed with torque - Google Patents

Based on the switched reluctance motor controller anti-shaking method evenly distributed with torque Download PDF

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Publication number
CN108631676A
CN108631676A CN201810469305.5A CN201810469305A CN108631676A CN 108631676 A CN108631676 A CN 108631676A CN 201810469305 A CN201810469305 A CN 201810469305A CN 108631676 A CN108631676 A CN 108631676A
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CN
China
Prior art keywords
torque
starting
current
switched reluctance
module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810469305.5A
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Chinese (zh)
Inventor
陈忠胜
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WUXI LIANLI ELECTRONIC TECHNOLOGY Co Ltd
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WUXI LIANLI ELECTRONIC TECHNOLOGY Co Ltd
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Application filed by WUXI LIANLI ELECTRONIC TECHNOLOGY Co Ltd filed Critical WUXI LIANLI ELECTRONIC TECHNOLOGY Co Ltd
Priority to CN201810469305.5A priority Critical patent/CN108631676A/en
Publication of CN108631676A publication Critical patent/CN108631676A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • H02P21/05—Arrangements or methods for the control of electric machines by vector control, e.g. by control of field orientation specially adapted for damping motor oscillations, e.g. for reducing hunting
    • 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
    • H02P21/24—Vector control not involving the use of rotor position or rotor speed sensors
    • H02P21/28—Stator flux based control
    • H02P21/30—Direct torque control [DTC] or field acceleration method [FAM]
    • 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
    • H02P25/08—Reluctance motors
    • H02P25/098—Arrangements for reducing torque ripple

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electric Motors In General (AREA)

Abstract

The present invention provides a kind of based on the switched reluctance motor controller anti-shaking method evenly distributed with torque, and steps are as follows：The module that starts, which calculates the start torque of module prediction different rotor position angle of torque when starting, will predict that torque is compared adjustment electric current with breakaway torque, and torque power converter driving motor rotation of the cut-off current torque distribution module distribution per phase current is provided by current limliting module；The present invention evenly distributes torque by torque partition function, and torque equilibrium is reached in the case where sacrificing partial torque, and then solves the problems, such as that the control system of electric automobile based on switched reluctance machines starts shake.

Description

Based on the switched reluctance motor controller anti-shaking method evenly distributed with torque
Technical field
The present invention relates to a kind of switched reluctance motor controller anti-shaking methods, especially a kind of uniformly to be divided based on band torque The switched reluctance motor controller anti-shaking method matched, belongs to switched reluctance motor controller technical field.
Background technology
Control system of electric automobile based on switched reluctance machines needs to solve to start jitter problem, this is because switch magnetic Hinder what motor self character determined, that is, the torque that switched reluctance machines are exported with rotor in different location is different, this It results in having jitter phenomenon when starting, is unable to reach gentle start.
Invention content
The purpose of the present invention is starting shake for the control system of electric automobile of switched reluctance machines, base is provided In the switched reluctance motor controller anti-shaking method evenly distributed with torque, the present invention is equal to torque by torque partition function Even distribution reaches torque equilibrium in the case where sacrificing partial torque, and then solves the electronic vapour based on switched reluctance machines Vehicle control starts the problem of shake.
In order to realize the above technical purpose, the technical scheme is that：Based on the switching magnetic-resistance evenly distributed with torque Electric machine controller anti-shaking method, which is characterized in that include the following steps：
Step 1 is according to the torque calculation formula of controllerStarting module calculates corresponding phase when starting Electric current and angle torque, the T in formula is torque, and i is electric current, and L is the inductance of motor, and θ is rotor position angle；
Step 2 is according to changing rule L (θ)=L of L and θmin+K(θ-θ2) (2), starting module prediction different rotor position Prediction torque is compared by the torque of angle setting with torque when starting；WhereinβsFor magnetic pole of the stator polar arc, LmaxValue when maximum induction amount, L are gone to for rotorminTurn value when minimum inductance amount for rotor；
If step 3 prediction torques are different from torque when starting, electric current is adjusted, and cut-off current is provided by current limliting module, Finally keep rotor identical in the torque of different Angle Positions.
Further, in the step 1, starting module is according to flux linkage calculation formula first And the position of motor and rotating speed when starting, calculate magnetic linkage when starting；
Further according to magnetic linkage ΨkWith the relationship Ψ of electric current ik=L*i (4) brings formula (3) into formula (4), obtains motor when starting InductanceWherein ΨkFor magnetic linkage, UsFor phase voltage, ωrFor angular speed, θonFor the angle of flow, θ For real time position angle；
It brings formula (5) into formula (1), obtains torque when starting；
Further, in the step 3, after current limliting module provides cut-off current, according to the cut-off current that calculating is given, torque Torque of the distribution module distribution per phase current, then rotated by power inverter driving motor.
Further, angular speed and current position angle of the torque distribution module according to acquisition, obtains magnetic at this time After chain and electric current, the torque for every phase current of reallocating.
Further, in the step 3, if torque when prediction torque is more than starting, reduce the big of each phase current of output It is small；If predicting torque when torque is less than starting, increase the size for exporting each phase current.
The present invention has the following advantages：The present invention evenly distributes torque by torque partition function, turns sacrificing part Torque mean allocation when reaching startup in the case of square per phase, and then reach startup steadily, efficiently solve electric vehicle control System processed starts the problem of shake.
Description of the drawings
Fig. 1 is flow chart of the method for the present invention.
Specific implementation mode
With reference to specific drawings and examples, the invention will be further described.
As shown, based on the switched reluctance motor controller anti-shaking method evenly distributed with torque, which is characterized in that Include the following steps：
Step 1 is according to the torque calculation formula of controllerStarting module calculates corresponding phase when starting Electric current and angle torque；Wherein T is torque, and i is electric current, and L is the inductance of motor, and θ is rotor position angle；
It is as follows：
Starting module is according to flux linkage calculation formula firstAnd starting when motor position and Rotating speed calculates magnetic linkage when starting；
Further according to magnetic linkage ΨkWith the relationship Ψ of electric current ik=L*i (4) brings formula (3) into formula (4), obtains motor when starting InductanceWherein ΨkFor magnetic linkage, UsFor phase voltage, ωrFor angular speed, θonFor the angle of flow, θ For real time position angle；
It brings formula (5) into formula (1), obtains torque when starting；
If step 2 switched reluctance motor controllers are not shaken in start-up course, phase of the rotor in different Angle Positions Hope that torque is suitable with torque when starting；
Step 3 is according to changing rule L (θ)=L of L and θmin+K(θ-θ2) (2), starting module prediction different rotor position Prediction torque is compared by the torque of angle setting with desired torque；WhereinβsFor magnetic pole of the stator polar arc, LmaxValue when maximum induction amount, L are gone to for rotorminTurn value when minimum inductance amount for rotor；
If it is expected step 4 prediction torque is different from torque, adjust electric current (even prediction torque more than desired torque, Then reduce the size for exporting each phase current；If predicting, torque is less than desired torque, increases the size for exporting each phase current), and Cut-off current is provided by current limliting module；
Angular speed and current position angle of the torque distribution module according to acquisition, after obtaining magnetic linkage and electric current at this time, then According to given cut-off current is calculated, the torque per phase current is distributed；
It is rotated again by power inverter driving motor, finally makes rotor identical in the torque of different Angle Positions.
It should be noted last that the above specific implementation mode is merely illustrative of the technical solution of the present invention and unrestricted, Although being described the invention in detail with reference to example, it will be understood by those of ordinary skill in the art that, it can be to the present invention Technical solution be modified or replaced equivalently, without departing from the spirit of the technical scheme of the invention and range, should all cover In the scope of the claims of the present invention.

Claims (5)

1. based on the switched reluctance motor controller anti-shaking method evenly distributed with torque, which is characterized in that including walking as follows Suddenly：
Step 1 is according to the torque calculation formula of controllerStarting module calculates the electricity of corresponding phase when starting The torque with angle is flowed, the T in formula is torque, and i is electric current, and L is the inductance of motor, and θ is rotor position angle；
Step 2 is according to changing rule L (θ)=L of L and θmin+K(θ-θ2) (2), starting module prediction different rotor position angle Torque, will prediction torque with start to walk when torque be compared；WhereinβsFor magnetic pole of the stator polar arc, Lmax Value when maximum induction amount, L are gone to for rotorminTurn value when minimum inductance amount for rotor；
If step 3 prediction torques are different from torque when starting, electric current is adjusted, and cut-off current is provided by current limliting module, finally Keep rotor identical in the torque of different Angle Positions.
2. it is according to claim 1 based on the switched reluctance motor controller anti-shaking method evenly distributed with torque, It is characterized in that, in the step 1, starting module is according to flux linkage calculation formula firstAnd starting When motor position and rotating speed, calculate starting when magnetic linkage；
Further according to magnetic linkage ΨkWith the relationship Ψ of electric current ik=L*i (4) brings formula (3) into formula (4), obtains the electricity of motor when starting SenseWherein ΨkFor magnetic linkage, UsFor phase voltage, ωrFor angular speed, θonFor the angle of flow, θ is real When position angle；
It brings formula (5) into formula (1), obtains torque when starting.
3. it is according to claim 1 based on the switched reluctance motor controller anti-shaking method evenly distributed with torque, It is characterized in that, in the step 3, after current limliting module provides cut-off current, according to the cut-off current that calculating is given, torque distribution module Torque of the distribution per phase current, then rotated by power inverter driving motor.
4. it is according to claim 3 based on the switched reluctance motor controller anti-shaking method evenly distributed with torque, It is characterized in that, angular speed and current position angle of the torque distribution module according to acquisition obtain magnetic linkage at this time and electric current Afterwards, the torque reallocated per phase current.
5. it is according to claim 1 based on the switched reluctance motor controller anti-shaking method evenly distributed with torque, It is characterized in that, in the step 3, if torque when prediction torque is more than starting, reduces the size for exporting each phase current；If pre- Torque when torque is less than starting is surveyed, then increases the size for exporting each phase current.
CN201810469305.5A 2018-05-16 2018-05-16 Based on the switched reluctance motor controller anti-shaking method evenly distributed with torque Pending CN108631676A (en)

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CN201810469305.5A CN108631676A (en) 2018-05-16 2018-05-16 Based on the switched reluctance motor controller anti-shaking method evenly distributed with torque

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Application Number Priority Date Filing Date Title
CN201810469305.5A CN108631676A (en) 2018-05-16 2018-05-16 Based on the switched reluctance motor controller anti-shaking method evenly distributed with torque

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CN108631676A true CN108631676A (en) 2018-10-09

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104467596A (en) * 2013-09-12 2015-03-25 中国计量学院 Method for reducing torque ripples of switched reluctance motor
CN105811849A (en) * 2016-05-06 2016-07-27 桂林电子科技大学 Torque control method and system of current nonlinear compensated switched reluctance motor
CN105978429A (en) * 2016-03-28 2016-09-28 上海交通大学 Switched reluctance motor monitoring system and method
CN106357186A (en) * 2016-09-05 2017-01-25 桂林电子科技大学 Method and system for controlling constant torque of switched reluctance motor by use of composite control current
JP2017085737A (en) * 2015-10-27 2017-05-18 三菱電機株式会社 Switched reluctance motor controller
CN107241033A (en) * 2017-08-01 2017-10-10 桂林电子科技大学 Switched reluctance machines method for suppressing torque ripple and system based on Current Position
CN107425783A (en) * 2017-08-09 2017-12-01 江苏上骐集团有限公司 A kind of method that can reduce switched reluctance machines torque pulsation

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104467596A (en) * 2013-09-12 2015-03-25 中国计量学院 Method for reducing torque ripples of switched reluctance motor
JP2017085737A (en) * 2015-10-27 2017-05-18 三菱電機株式会社 Switched reluctance motor controller
CN105978429A (en) * 2016-03-28 2016-09-28 上海交通大学 Switched reluctance motor monitoring system and method
CN105811849A (en) * 2016-05-06 2016-07-27 桂林电子科技大学 Torque control method and system of current nonlinear compensated switched reluctance motor
CN106357186A (en) * 2016-09-05 2017-01-25 桂林电子科技大学 Method and system for controlling constant torque of switched reluctance motor by use of composite control current
CN107241033A (en) * 2017-08-01 2017-10-10 桂林电子科技大学 Switched reluctance machines method for suppressing torque ripple and system based on Current Position
CN107425783A (en) * 2017-08-09 2017-12-01 江苏上骐集团有限公司 A kind of method that can reduce switched reluctance machines torque pulsation

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
赵影 等: "基于Matlab/Simulink和Ansoft/Rmxprt的开关磁阻电机系统控制仿真研究", 《测控技术》 *
郑宁: "新型开关磁阻电机及其在电动工具上的应用(续)", 《电动工具》 *

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Application publication date: 20181009