Stator Interturn Fault Detection in Permanent-Magnet Machines Using PWM Ripple Current Measurement

IEEE Trans. Power Electron.

et al. 2019

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Section: ]mentioning

confidence: 99%

Investigation Into Fault-Tolerant Capability of a Triple Redundant PMA SynRM Drive

IEEE Trans. Power Electron.

et al. 2019

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“…Significantly large current is induced in the fault turns due to the low impedance. The fault is caused by insulation break down and it accounts for a large percentage of faults in electric machines [21,22]. Thus, inter-turn short circuit fault should be carefully emulated, detected and mitigated.…”

Section: Inter-turn Short Circuit Testmentioning

confidence: 99%

Experimental Assessments of a Triple Redundant Nine-Phase Fault-Tolerant PMA SynRM Drive

IEEE Trans. Ind. Electron.

et al. 2019

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Abstract-Fault tolerant machine drives are key enabling technologies in safety critical applications. The machine drives are expected to exhibit high performance in healthy conditions and accommodate as many faults as possible, namely open circuit or short circuit in the machine and inverter or even an inter-turn short circuit. This paper aims to assess a triple redundant 9-phase (3x3-phase) permanent magnet assisted synchronous reluctance machine (PMA SynRM) drive by comprehensive experimental tests under both healthy and fault conditions on a 35kW machine drive prototype. The healthy performance, fault behavior, fault detection and mitigation strategy are presented and assessed by extensive tests which demonstrate that the machine drive exhibits high performance and excellent fault tolerance with simple and cost-effective implementation. Therefore, the proposed machine drive has proven to be a practical candidate for safety critical applications.

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“…Various fault detection algorithms have been investigated based on monitoring parameter changes [7], harmonic current [8] and PWM ripple current [9]. Further, the fault detection techniques described in [10,11] provide a means to identify the phase location of the fault turns.…”

Section: Introductionmentioning

confidence: 99%

A Turn Fault Mitigation Strategy Based on Current Injection Technique for a Triple Three-Phase PMA SynRM

IEEE Trans. Ind. Electron.

et al. 2020

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