Title:
METHOD AND APPARATUS FOR ESTIMATING ROTOR TEMPERATURE OF PERMANENT MAGNET SYNCHRONOUS ELECTRIC MOTOR, AND COMPUTER DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/109403
Kind Code:
A1
Abstract:
Disclosed are a method and apparatus for estimating the rotor temperature of a permanent magnet synchronous electric motor, and a computer device, a computer-readable storage medium and a computer program product. The method comprises: acquiring a rotor rotation speed of a permanent magnet synchronous electric motor (S102); determining the current rotation speed interval of a rotor according to the rotor rotation speed, and determining a temperature estimation algorithm matching the rotation speed interval (S104); and executing the temperature estimation algorithm matching the rotation speed interval, and estimating the rotor temperature of the permanent magnet synchronous electric motor (S106). The method can realize the estimation of a rotor temperature without increasing the complexity of a hardware structure of an electric motor system, thereby facilitating a reduction in cost.
Inventors:
ZHENG XIONG (CN)
PAN XIANXI (CN)
LUO YU (CN)
DAN ZHIMIN (CN)
PAN XIANXI (CN)
LUO YU (CN)
DAN ZHIMIN (CN)
Application Number:
PCT/CN2022/131836
Publication Date:
June 22, 2023
Filing Date:
November 15, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
G01K13/08; H02P29/66; H02P29/60
Foreign References:
| CN110138312A | 2019-08-16 | |||
| US20150263509A1 | 2015-09-17 | |||
| EP3579405A1 | 2019-12-11 | |||
| US20200036311A1 | 2020-01-30 | |||
| CN112332718A | 2021-02-05 |
Other References:
CHEN, SHITAO: "Real-time Determine the Temperature of Stator and Rotor of PMSM", MASTER'S THESES OF HUNAN UNIVERSITY, 15 July 2020 (2020-07-15)
CHEN, MEIBIN: "Sensorless Hybird Control for Permanent Magnet Synchronous Motor", MASTER'S THESES OF HANGZHOU DIANZI UNIVERSITY, 15 April 2017 (2017-04-15)
CHEN, MEIBIN: "Sensorless Hybird Control for Permanent Magnet Synchronous Motor", MASTER'S THESES OF HANGZHOU DIANZI UNIVERSITY, 15 April 2017 (2017-04-15)
Attorney, Agent or Firm:
ACIP LAW OFFICES (CN)
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