Fault Diagnosis Based on Sliding Mode Observer and Signal Analysis for PMSM Current Sensor
2023 CAA Symposium on Fault Detection, Supervision and Safety for Technical Processes (SAFEPROCESS)(2023)
摘要
In this paper, a fault diagnosis method based on sliding mode observer (SMO) and signal analysis is proposed for permanent magnet synchronous motor (PMSM) current sensor. First, the SMO is established for estimating αβ axis current values to detect fault phase. Next, current sensors faults can be classified based on the current characteristics by harmonic analysis under different fault types. Ultimately, the outcomes of the simulation emphasize the feasibility and effectiveness of the suggested approach.
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关键词
fault diagnosis,sliding mode observer,harmonic analysis,current sensor,PMSM
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