Title:
MOTOR STARTING METHOD AND READABLE STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2022/242708
Kind Code:
A1
Abstract:
Provided are a motor starting method and a readable storage medium. A three-phase starting method comprising a rotor pre-positioning phase, an external synchronous open-loop acceleration phase, and an operation state switching phase is used. The method comprises: in the external synchronous open-loop acceleration phase, measuring a phase difference between a rotor and a stator, determining, according to the measurement result, whether a switching condition from the external synchronous open-loop acceleration phase to the operation state switching phase is satisfied, and if the switching condition is not satisfied, returning to the rotor pre-positioning phase to restart a motor and adjusting a motor startup parameter when the motor is restarted; and in the operation state switching phase, measuring a phase difference between the rotor and the stator, dynamically adjusting the phase difference between the rotor and the stator according to the measurement result, and determining, according to whether the number of adjustments exceeds a threshold, whether to return to the rotor pre-positioning phase to restart the motor. Compared with the prior art, the accuracy of determining the successful motor startup is improved, the restart time interval is also reduced, and the two startup time intervals can be shortened from 1 s to 50 ms.
Inventors:
ZHANG YIMING (CN)
ZHANG BANG (CN)
SUN ZE (CN)
ZHANG BANG (CN)
SUN ZE (CN)
Application Number:
PCT/CN2022/093772
Publication Date:
November 24, 2022
Filing Date:
May 19, 2022
Export Citation:
Assignee:
UNITED AUTOMOTIVE ELECT SYS CO (CN)
International Classes:
H02P6/21; H02P1/16; H02P1/18; H02P1/26; H02P6/08; H02P6/182; H02P6/20; H02P29/028; H02P29/032
Foreign References:
| CN113364368A | 2021-09-07 | |||
| CN110943653A | 2020-03-31 | |||
| CN109995274A | 2019-07-09 | |||
| KR20200082256A | 2020-07-08 |
Attorney, Agent or Firm:
SHANGHAI SAVVY INTELLECTUAL PROPERTY AGENCY (CN)
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