湖北汽车工业学院学报2026，Vol.40Issue(1)：37-41,47,6.DOI:10.3969/j.issn.1008-5483.2026.01.007
基于小波分析的PMSM匝间短路故障诊断方法
Fault Diagnosis Method for Inter-turn Short Circuit in PMSM Based on Wavelet Analysis
摘要
Abstract
To achieve early and accurate detection of inter-turn short circuit faults in permanent mag-net synchronous motor(PMSM),a voltage second harmonic component detection method based on dis-crete wavelet transform was proposed.In order to simplify the fault model of the PMSM in the three-phase coordinate system,the short-circuit current and voltage characteristics of the inter-turn fault were analyzed,and the inter-turn fault's mathematical model of the voltage second harmonic compo-nent was derived and established;the discrete wavelet transform was used to analyze the characteristic signals.The voltage second harmonic component was used as the basis for fault monitoring,and the fault phase could be located by assisting with the amplitude of the current.The inter-turn short circuit model of PMSM was established on the Simulink platform,and different fault severities were set to veri-fy the effectiveness of the method.The simulation results show that the signal-to-noise ratio of the volt-age second harmonic is much higher than that of the current harmonic,and the proposed method can quickly detect inter-turn faults and accurately locate the fault phase.关键词
永磁同步电机/匝间短路故障/故障诊断Key words
PMSM/inter-turn short circuit fault/fault diagnosis分类
信息技术与安全科学引用本文复制引用
王帆,张金亮,彭国生,简炜,王志虎..基于小波分析的PMSM匝间短路故障诊断方法[J].湖北汽车工业学院学报,2026,40(1):37-41,47,6.基金项目
电磁感应与节能技术十堰市重点实验室开放基金(SYZDK22025B02) （SYZDK22025B02）
