Encoder disturbance fault detection in PMSM drives

الملخص EN

The paper deals with position sensor fault detection in Permanent Magnet Synchronous Motor (PMSM) drives.

Two fault detection algorithms are described here.

The first algorithm is based on Discrete Wavelet Transform (DWT) and especially on Multi Resolution Analysis (MRA) technique.

The second algorithm is based on the Parity Equations Approach (PEA) for residuals generation.

The considered position sensor fault is a high level noise disturbance.

Simulation results related to the both fault detection algorithms application are presented and discussed.

The effectiveness, the robustness to noise, and the real time implementation are the criteria considered to carry out a comparative study between the two fault detection algorithms.