Beijing Jingwei Hirain Technologies Co., Inc.

Aiming Cheng

Feng Wang

Wenping Wang

A method and device for detecting the temperature of a motor winding, a method and device for thermal protection of a motor are provided, the method for detecting the temperature of a motor winding includes: obtaining the temperature of the motor winding at a first time before a time step; calculating the temperature rise of the rotor equivalent body after the motor runs for the time step; then calculating the temperature of the motor winding after the motor runs for the time step by superposing the temperature rise of the rotor equivalent body after the motor runs for the time step on the temperature of the motor winding obtained at the first time. By the method for detecting the temperature of a motor winding, the real-time monitoring on the temperature of the winding is achieved, thus applying the ability of the motor and improving sensitivity.

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Beijing, China

Aiming Cheng