Title:
OUTPUT COMPENSATION METHOD AND DEVICE FOR SINE ERROR OF MOTOR UNDER INTERFERENCE MAGNETIC FIELD
Document Type and Number:
WIPO Patent Application WO/2022/016872
Kind Code:
A1
Abstract:
The present invention provides an output compensation method and device for a sine error of a motor under an interference magnetic field. The method comprises: acquiring a control signal and a displacement signal of the motor in a constant-speed stage; creating a space domain sine and cosine signal on the basis of the control signal and the displacement signal, and converting the sine and cosine signal into a corresponding time domain signal; creating a compensation matrix according to the time domain signal; determining a compensation signal corresponding to the compensation matrix according to the compensation matrix; and superposing the compensation signal into the control signal so as to perform displacement error compensation on the motor. By using the present invention, the tracking precision of the motor can be improved, and the output of the motor is effectively compensated, so that the motion control performance of the motor is improved.
Inventors:
ZHU YU (CN)
YANG KAIMING (CN)
LIU TAO (CN)
CHENG RONG (CN)
LI XIN (CN)
LU SEN (CN)
LEI SHENG (CN)
YANG KAIMING (CN)
LIU TAO (CN)
CHENG RONG (CN)
LI XIN (CN)
LU SEN (CN)
LEI SHENG (CN)
Application Number:
PCT/CN2021/079104
Publication Date:
January 27, 2022
Filing Date:
March 04, 2021
Export Citation:
Assignee:
UNIV TSINGHUA (CN)
International Classes:
G03F7/20; H02P5/46; H02P5/485
Foreign References:
| CN112003501A | 2020-11-27 | |||
| CN101132164A | 2008-02-27 | |||
| CN104238275A | 2014-12-24 | |||
| CN103208867A | 2013-07-17 | |||
| CN105910594A | 2016-08-31 | |||
| US20150293459A1 | 2015-10-15 |
Attorney, Agent or Firm:
GRANDER IP LAW FIRM (CN)
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