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Real-Time Detection of Interturn Faults in PM Drives Using Back-EMF Estimation and Residual Analysis

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5 Author(s)
Leboeuf, N. ; Groupe de Rech. en Electrotech. et Electron. de Nancy (GREEN), Nancy Univ., Nancy, France ; Boileau, T. ; Nahid-Mobarakeh, B. ; Clerc, G.
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Interturn stator winding fault is one of the most frequent faults in permanent-magnet synchronous machines (PMSMs). In this paper, we present a new technique for online detection of this fault in PMSMs. It is based on a residual analysis improved by taking into account back-electromotive force waveform estimation, inverter model, and unbalanced inductance matrix. Then, a current residual monitoring block permits to detect the fault and its severity. The simulation and experimental results validate the proposed method and its efficiency.

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Industry Applications, IEEE Transactions on  (Volume:47 ,  Issue: 6 )