Global Fault-Tolerant Control Technique for Multiphase Permanent-Magnet Machines

摘要: In this paper, a global fault-tolerant control (FTC) technique is proposed for multiphase permanent-magnet (PM) machine drives. The goal of the FTC to find general closed-form solution healthy phase currents under steady-state postfault conditions. Healthy are found through an optimization problem produce ripple-free output torque with minimum ohmic losses. A comprehensive approach should be able provide machines any number phases. addition, it needs based on fault type (open-circuit/short-circuit), locations [phase(s) and/or line(s)], connection stator windings, and even different objectives. An important feature method its flexibility simplicity in dealing all possible great tool evaluate capability drive systems terms maximum available copper Due flexibility, also well-suited real-time implementation. five-phase PM used as example investigate validity solutions finite-element analysis experimental tests.