中国电机工程学报2025，Vol.45Issue(8)：3205-3213,中插29,10.DOI:10.13334/j.0258-8013.pcsee.232006
基于高频信号注入的永磁同步电机局部退磁故障诊断研究
Detection of Local Demagnetization in Permanent Magnet Synchronous Machine Based on High Frequency Signal Injection
摘要
Abstract
The local demagnetization fault in permanent magnet synchronous motors(PMSMs)can cause abnormal vibrations and noise to machine,and even potentially leading to permanent damage.Thus,accurate detection of local demagnetization fault is of paramount importance.It is found that local demagnetization fault can induce local saturation in the stator iron core,subsequently leading to an increase in the inductance saliency.While this phenomenon is evidently absent in a uniformly demagnetized state.Based on this,this paper proposes a targeted detection approach for local demagnetization fault by extracting the high frequency(HF)fault features from the zero-sequence voltage of the motor under HF signal injection.An experimental platform is established to validate the method's effectiveness.关键词
永磁同步电机/高频信号注入/零序电压/局部退磁故障Key words
permanent magnet synchronous machine(PMSM)/high frequency signal injection/zero-sequence voltage/local demagnetization fault分类
信息技术与安全科学引用本文复制引用
徐政,张建忠,姜永将,邓富金..基于高频信号注入的永磁同步电机局部退磁故障诊断研究[J].中国电机工程学报,2025,45(8):3205-3213,中插29,10.基金项目
国家重点研发计划项目(2022YFE0196300) （2022YFE0196300）
南京工程学院开放基金项目(XTCX202308).National Key R&D Program(2022YFE0196300) （XTCX202308）
Open Research Fund of Nanjing Institute of Technology(XTCX202308). （XTCX202308）
