PROJECT TITLE :
Evaluation of saliency tracking as an alternative for health monitoring in PMSM-drives under non-stationary conditions
This paper evaluates the potential of saliency tracking to assess the health condition of permanent magnet synchronous motor (PMSM) drives operating below non-stationary conditions. The evaluated scheme relies on saliency tracking strategies, that are associated to the correct sensorless control of AC drives without zero speed limitations. During this work 2 representative saliency tracking architectures are evaluated: high frequency (HF) injection, and PWM transient excitation. Although a monitoring approach primarily based on HF injection was previously reported, a comparative study to judge the foremost representative saliency tracking schemes to assess health condition in drives was still missing. The aim of this work is to fill out this gap by evaluating and comparing 2 saliency-based mostly monitoring schemes (one based on HF-injection and the opposite primarily based on PWM transient excitation) to evaluate their performance in the presence of inter-flip winding faults. Simulation and experimental results are presented which make sure that each schemes provide excellent detection capabilities which are appropriate for drives operating under nonstationary conditions including standstill operation.
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