Fault Tolerant Power Converter Topologies for Sensor-less Speed Control of PMSM Drives

Abstract : This paper exhibits a sensor-less speed control method based MRAS observer applied to a fault-tolerant PMSM drive system. So, this paper proposes a rapid method of fault switch detection in the power converters aiming to make sure the continuity of service even though the fault presence of an opening phase. In fact, the MRAS observer is used to replace the mechanical sensor and a redundant inverter leg is equally employed to replace the faulty leg. The proposed fast fault diagnosis method has the features of simple algorithm, independence of the transient states and being simply integrated without any additional sensors.
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Submitted on : Thursday, November 28, 2019 - 4:56:47 PM
Last modification on : Friday, November 29, 2019 - 2:31:59 AM

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Mongi Moujahed, Bilel Touaiti, Hechmi Ben Azza, Mohamed Jemli, Mohamed Boussak. Fault Tolerant Power Converter Topologies for Sensor-less Speed Control of PMSM Drives. Politehnica University of Bucharest (UPB) Scientific Bulletin, Series C - Electrical Engineering and Computer Science (ISSN: 1454-234X), 2019, 63 (3), pp.227-234. ⟨10.3311/PPee.14048⟩. ⟨hal-02385262⟩

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