Title:
TORQUE ACQUISITION METHOD AND APPARATUS, MOTOR CONTROLLER, READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2023/015557
Kind Code:
A1
Abstract:
Embodiments of the present application provide a torque acquisition method and apparatus, a motor controller, a readable storage medium. The torque acquisition method comprises: acquiring the rotational speed of a motor; acquiring the current of the motor; acquiring the flux linkage of the motor; determining the electromagnetic torque of the motor according to the current and the flux linkage; and inputting the rotational speed and the electromagnetic torque into a preset state observer to obtain an observed value of the actual output torque of the motor output by the state observer. The acquisition method is used to achieve effective, simple and accurate acquisition of the actual output torque.
Inventors:
ZHENG XIONG (CN)
PAN XIANXI (CN)
CAI FEILONG (CN)
DAN ZHIMIN (CN)
PAN XIANXI (CN)
CAI FEILONG (CN)
DAN ZHIMIN (CN)
Application Number:
PCT/CN2021/112492
Publication Date:
February 16, 2023
Filing Date:
August 13, 2021
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H02P21/14
Domestic Patent References:
| WO2020244954A1 | 2020-12-10 |
Foreign References:
| CN107070342A | 2017-08-18 | |||
| CN108551287A | 2018-09-18 | |||
| CN106612087A | 2017-05-03 | |||
| CN111086399A | 2020-05-01 | |||
| EP2747273A1 | 2014-06-25 |
Attorney, Agent or Firm:
BEIJING WEIFEI LIANCHUANG INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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