一种无需参数估计的内置式永磁电机退磁故障诊断新方案

This article proposes a novel demagnetization fault diagnosis scheme for the interior permanent magnet (IPM) motor without parameter estimation. First, a feature enhancement-based disturbance observer is proposed, which incorporates the estimation error and the sliding mode surface as reinforcement factors for fault characteristics. Then, a sliding mode assessment-based demagnetization fault diagn...