CN108683378A - A method of using electric control system come to motor torque oscillation compensation - Google Patents
A method of using electric control system come to motor torque oscillation compensation Download PDFInfo
- Publication number
- CN108683378A CN108683378A CN201810582362.4A CN201810582362A CN108683378A CN 108683378 A CN108683378 A CN 108683378A CN 201810582362 A CN201810582362 A CN 201810582362A CN 108683378 A CN108683378 A CN 108683378A
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- China
- Prior art keywords
- torque
- motor
- control system
- controller
- function
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Classifications
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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
-
- 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
- H02P23/14—Estimation or adaptation of motor parameters, e.g. rotor time constant, flux, speed, current or voltage
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Control Of Electric Motors In General (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses a kind of using electric control system come the method to motor torque oscillation compensation, it include the controller with fluctuating torque compensating module, by the torque of engine with the function representation of motor Angle Position, after the relationship of motor torque and Angle Position corrects, this function T (theta*N, N>1) it is input in electric machine controller software in the look-up table or function of existing torque corresponding current, then electric current is controlled synchronizing fixed field current controller with rotating speed, so that electric machine controller is generated correct PWM voltages, accurately controls total torque fluctuation to minimum；This can reach better transient state and steady-state performance and development using electric control system come the method to motor torque oscillation compensation, and not by the purpose of motor and engine speed.
Description
Technical field
Present invention relates particularly to a kind of using electric control system come the method to motor torque oscillation compensation.
Background technology
In new-energy automobile classification, including hybrid power and electric vehicle, it will usually have motor with internal combustion engine directly or
The design that person is of coupled connections by belt, such as ISG (starting and power generation integrated system) and range extender system.
Traditional internal combustion engine generally produces prodigious torque ripple due to its working mechanism.These torque ripples are in drive the cross
It will produce bad vibrations and noise in journey.In orthodox car, typically this is eliminated to mitigate with the change in terms of mechanical structure
Class vibration problem, for example add flywheel.In electronic and car with mixed energy source system, motor is equivalent to the load of engine.Electricity
The high bandwidth of machine control system allows the fluctuation of Active Compensation high frequency motor torque to become possible.
Invention content
The purpose of the present invention is to solve the shortcomings of the prior art place, provide it is a kind of using electric control system come to hair
The method of motivation torque ripple compensation, to reach better transient state and steady-state performance and development, not by motor and engine speed
Purpose.
The purpose of the present invention is achieved by the following technical programs.
A method of to motor torque oscillation compensation, include to be mended with fluctuating torque using electric control system
The controller for repaying module, by the torque of engine with the function representation of motor Angle Position, in the pass of motor torque and Angle Position
After system's correction is good, this function T (theta*N, N>1) it is input to existing torque in electric machine controller software and corresponds to electricity
In the look-up table or function of stream, electric current then is controlled synchronizing fixed field current controller with rotating speed, makes electric machine controller
Correct PWM voltages are generated, accurately control total torque fluctuation to minimum.
Further, it is applied to the torque ripple harmonic wave from 1 to N times, eliminates all amplitudes and influence operation noise and shake
Dynamic torque high-frequency harmonic.
The beneficial effects of the invention are as follows：Hardware and software framework based on existing electric machine controller is turned using engine
Square fluctuation determines this characteristic by engine ignition angle, torque ripple from rotation pre-inversion to fixed field in electric-control system,
Then it is compensated and controls again, to reach better transient state and steady-state performance and development, and not by motor and engine speed
The impression of degree is not necessarily to specific hardware, needs software resource to be used also minimum.
Description of the drawings
Fig. 1 is the total frame diagram of system；
Fig. 2 is that motor torque fluctuation characteristic refines figure.
Specific implementation mode
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with attached drawing and specific implementation
Example, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used to explain this hair
It is bright, it is not intended to limit the present invention.
Embodiment
Fig. 1 is the frame diagram of controller direct torque, is inputted as system to the torque command of motor and the width of torque ripple
Value and its phase, it is illustrated that middle part lower part is the undulated control module of the present invention, and upper part is the main of usual electric machine controller
Direct torque software module, the right are common three-phase voltage pwm generators, including fluctuating torque eliminates part, engine
Torque is with the function representation of motor Angle Position, and either modeling measures and obtains or pass through in operation sight function parameter under line
It surveys device algorithm and motor speed feedback obtains, after the relationship of motor torque and Angle Position corrects, we are this letter
Number T (theta*N, N>1) it is input in electric machine controller software in the look-up table or function of existing torque corresponding current, after
And electric current is controlled synchronizing fixed field current controller with rotating speed, so that electric machine controller is generated correct PWM voltages, accurately
Total torque fluctuation is controlled to minimum.
Similar structure can be used for the torque ripple harmonic wave from 1 to N times, and shadow is large enough to eliminate all amplitudes
Ring the torque high-frequency harmonic of operation noise and vibration.
The fluctuating torque null method is run under motor dq axis.The bandwidth of controller is not influenced by the speed of engine,
That is it is all same effective for the torque ripple of low speed and high speed and low frequency and high frequency, can be selected simply by parameter
It selects with suitable for different vibration frequencies.
Fig. 2 shows how the data of torque and Angle Position are transformed into the dq for being applicable in motor control software and often having by this method
Axis controls.We carry out anti-Park Transformation to the torque ripple of a certain frequency and the corresponding data of angle observed first, from
And obtain the vector value of direct current；Then necessary filtering and coordinate transform processing are carried out；What is finally exported is that torque ripple is revolving
Turn the direct current expression under domain, includes the Angle Position of assignment and rotational domain.The input parameter of the conversion method is under different angle
It measures or the motor torque with mechanical model parameter Estimation is measured by system speed.The output of conversion method is same in Nth
The expression of torque ripple in step rotation domain, including resume one's post and phase angle, this output will eliminate controller as the fluctuation of Fig. 1
Input parameter.
The beneficial effects of the invention are as follows：Hardware and software framework based on existing electric machine controller is turned using engine
Square fluctuation determines this characteristic by engine ignition angle, torque ripple from rotation pre-inversion to fixed field in electric-control system,
Then it is compensated and controls again, to reach better transient state and steady-state performance and development, and not by motor and engine speed
The impression of degree is not necessarily to specific hardware, needs software resource to be used also minimum.
Certainly, the representative instance of the above only present invention, in addition to this, the present invention can also have other a variety of specific implementations
Mode, all technical solutions formed using equivalent substitution or equivalent transformation, is all fallen within the scope of protection of present invention.
Claims (2)
1. it is a kind of using electric control system come the method to motor torque oscillation compensation, include with fluctuating torque compensate
The controller of module, it is characterised in that：By the torque of engine with the function representation of motor Angle Position, in motor torque and angle
After the relationship of position corrects, this function T (theta*N, N>1) it is input to existing torque in electric machine controller software
In the look-up table or function of corresponding current, electric current then is controlled synchronizing fixed field current controller with rotating speed, makes motor
Controller generates correct PWM voltages, accurately controls total torque fluctuation to minimum.
2. as described in claim 1 using electric control system come the method to motor torque oscillation compensation, feature exists
In：Applied to the torque ripple harmonic wave from 1 to N times, the torque harmonic high frequency that all amplitudes influence operation noise and vibration is eliminated
Wave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810582362.4A CN108683378A (en) | 2018-06-07 | 2018-06-07 | A method of using electric control system come to motor torque oscillation compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810582362.4A CN108683378A (en) | 2018-06-07 | 2018-06-07 | A method of using electric control system come to motor torque oscillation compensation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108683378A true CN108683378A (en) | 2018-10-19 |
Family
ID=63810119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810582362.4A Pending CN108683378A (en) | 2018-06-07 | 2018-06-07 | A method of using electric control system come to motor torque oscillation compensation |
Country Status (1)
| Country | Link |
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| CN (1) | CN108683378A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450330A (en) * | 2018-11-13 | 2019-03-08 | 南京航空航天大学 | A kind of method for controlling torque for electric excitation biconvex electrode electric machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030177846A1 (en) * | 2002-03-25 | 2003-09-25 | Honda Giken Kogyo Kabushiki Kaisha | Torque variation control device and computer program |
| CN103342126A (en) * | 2013-07-12 | 2013-10-09 | 东风汽车公司 | Hybrid electric vehicle engine torque fluctuation compensation method |
| CN103935357A (en) * | 2013-12-23 | 2014-07-23 | 上海大郡动力控制技术有限公司 | Damping method for electric automobile range extender |
| CN104052361A (en) * | 2013-03-12 | 2014-09-17 | 操纵技术Ip控股公司 | Motor control system to compensate for torque ripple |
| CN205596048U (en) * | 2016-03-16 | 2016-09-21 | 中国第一汽车股份有限公司 | PMSM torque ripple controlling means |
-
2018
- 2018-06-07 CN CN201810582362.4A patent/CN108683378A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030177846A1 (en) * | 2002-03-25 | 2003-09-25 | Honda Giken Kogyo Kabushiki Kaisha | Torque variation control device and computer program |
| CN104052361A (en) * | 2013-03-12 | 2014-09-17 | 操纵技术Ip控股公司 | Motor control system to compensate for torque ripple |
| CN103342126A (en) * | 2013-07-12 | 2013-10-09 | 东风汽车公司 | Hybrid electric vehicle engine torque fluctuation compensation method |
| CN103935357A (en) * | 2013-12-23 | 2014-07-23 | 上海大郡动力控制技术有限公司 | Damping method for electric automobile range extender |
| CN205596048U (en) * | 2016-03-16 | 2016-09-21 | 中国第一汽车股份有限公司 | PMSM torque ripple controlling means |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450330A (en) * | 2018-11-13 | 2019-03-08 | 南京航空航天大学 | A kind of method for controlling torque for electric excitation biconvex electrode electric machine |
| CN109450330B (en) * | 2018-11-13 | 2021-07-30 | 南京航空航天大学 | Torque control method for electro-magnetic doubly salient motor |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181019 |