RECONFIGURABLE INVERTER HAVING FAILURE TOLERANCE FOR POWERING A SYNCHRONOUS POLY-PHASE MOTOR HAVING PERMANENT MAGNETS, AND ASSEMBLY INCLUDING SAID INVERTER AND MOTOR

摘要

The invention relates to a reconfigurable inverter having failure tolerance for powering a synchronous poly-phase motor having permanent magnets, and to an assembly including said inverter and said motor. The inverter includes: N switching cells (B1, B2, B3) including switching devices (B11 to B 32) and insulating devices (S11 to S33) where N is the number of phases of the motor (N≥3); at least one redundancy cell (R); a supervisor (12) for detecting an operation dysfunction of the inverter leading to the motor stop (14), resulting from a failure of one of the N cells and leading to a defect in one of the phases of the motor. Each switching device notifies the supervisor of a short-circuit affecting the device, and the supervisor monitors the integral value of the absolute value of the current in the faulty phase.