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Dual-Multiphase Motor Drives for Fault- Tolerant Applications: Power Electronic Structures and Control Strategies

Article dans une revue avec comité de lecture
Author
DOS SANTOS MORAES, Tiago José
MEINGUET, Fabien
48530 Thales Alenia Space [Toulouse] [TAS]
GUERIN, Mael
74318 THALES Avionics Electrical Systems [TAES]
ccSEMAIL, Eric
13338 Laboratoire d’Électrotechnique et d’Électronique de Puissance - ULR 2697 [L2EP]
NGUYEN, Ngac Ky

URI
http://hdl.handle.net/10985/11799
DOI
10.1109/TPEL.2017.2671907
Date
2017
Journal
IEEE Transactions on Power Electronics

Abstract

This paper analyzes two fault-tolerant dualmultiphase motor drives, a series connected topology and a standard H-bridge topology. Previous studies have shown that the series connected topology is appropriate to an aerospace application and has lower peak current in degraded mode in comparison with the H-bridge topology, which may consequently diminish the system’s weight and cost. This paper extends the study to compare different control strategies of these structures under two fault conditions: short-circuit of an inverter’s switch and an open-phase of the machine. The control strategies analyzed in this paper do not impact the fundamental current or the torque generation, but the amplitudes of some harmonics in degraded mode are expected to be narrowed down in order to reduce the inverter’s size. Some analyses of maximum voltage and peak current in degraded mode have been used for inverter dimensioning. Experimental results are shown and compared to the simulated ones to confirm the validity of this study.

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