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Nguyen, Ngac Ky; Meinguet, Fabien; Semail, Eric; Kestelyn, Xavier
IEEE transactions on industrial electronics (1982), 2016-Jan., 2016-1-00, 20160101, Letnik: 63, Številka: 1Journal Article
Multiphase machines are well known for their fault-tolerant capability. Star-connected multiphase machines have fault tolerance in an open circuit. For an inverter switch short-circuit fault, it is possible to keep a smooth torque of a permanent magnet synchronous machine if the currents of the faulty phases are determined and their values are acceptable. This paper investigates fault-tolerant operations of an open-end five-phase drive, i.e., a multiphase machine fed with a dual-inverter supply. Inverter switch short-circuit fault is considered and handled with a simple solution. Original theoretical developments are presented. Simulation and experimental results validate the proposed strategy.
