Detecting early stator interturn short-circuit faults in asynchronous motors online remains a significant challenge due to their subtle and elusive fault characteristics. Current methods utilizing high-frequency voltage signal injection are compromised by resistance imbalance faults, making it impossible to differentiate between the two while accurately locating interturn short-circuit faults. In this article, a method is proposed to obtain fault characteristics by comparing the difference of high-frequency current response between interturn short-circuit fault and resistance imbalance fault. At the same time, combined with the defined fault type discrimination index (DI), the phase location of interturn short-circuit fault and the distinction between interturn short-circuit fault and resistance imbalance fault are realized. Finally, the effectiveness of the method under different working conditions is verified by the 2.2-kW motor experimental platform.


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    Title :

    Early Fault Detection of Stator Interturn Short Circuit of Asynchronous Motor Based on Rotating High Frequency Voltage Injection


    Contributors:
    Fang, Xiaochun (author) / Gao, Jingchen (author) / Lu, Jinxin (author) / Zhang, Jiaying (author) / Li, Hua (author)


    Publication date :

    2025-02-01


    Size :

    8207896 byte




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English