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A Comparative Study of Two Fault-Tolerant Dual-Motor Drive Topologies Under Short-Circuit Inverter Switch Fault

Archive ouverte : Communication dans un congrès

dos Santos Moraes, Tiago José | Nguyen, Ngac-Ky | Meinguet, Fabien | Semail, Eric

Edité par HAL CCSD ; IEEE ISIE

International audience. This paper analyzes two dual-motor fault-tolerant topologies for aerospace thruster application. The first structure supplies independently both machines while the second one connects them in series for reducing the number of transistors and offering a capability of energy management between the sources. Inverter short-circuit fault is considered. Based on the peak-currents obtained in simulation in degraded mode without reconfiguration and with two different reconfiguration strategies, the two proposed topologies can be compared in economic and technical aspects.

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