Title:
PERMANENT MAGNET MOTOR DETECTION METHOD AND DEVICE, READABLE STORAGE MEDIUM, AND PERMANENT MAGNET MOTOR
Document Type and Number:
WIPO Patent Application WO/2023/213171
Kind Code:
A1
Abstract:
A permanent magnet motor detection method and device, a readable storage medium, a permanent magnet motor, a compressor, and heating and ventilation equipment. The detection method comprises: under the condition that a permanent magnet motor is shut down and a rotor keeps rotating, obtaining an input voltage and a rotating speed of the rotor of the permanent magnet motor; and determining a demagnetization parameter of a permanent magnet according to the input voltage and the rotating speed of the rotor.
Inventors:
LI ZHENSHAN (CN)
WU WENHUI (CN)
HE WEIHENG (CN)
WU WENHUI (CN)
HE WEIHENG (CN)
Application Number:
PCT/CN2023/087650
Publication Date:
November 09, 2023
Filing Date:
April 11, 2023
Export Citation:
Assignee:
CHONGQING MIDEA GENERAL REFRIGERATION EQUIPMENT CO LTD (CN)
MIDEA GROUP CO LTD (CN)
MIDEA GROUP CO LTD (CN)
International Classes:
H02P21/14; G01R31/34; G01R33/12
Foreign References:
| CN114785225A | 2022-07-22 | |||
| JP6651188B1 | 2020-02-19 | |||
| CN111669094A | 2020-09-15 | |||
| CN104034445A | 2014-09-10 | |||
| CN111211719A | 2020-05-29 |
Attorney, Agent or Firm:
BEIJING LISENG INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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