Asymmetrical multi-lane multi-phase motor drives

Multi-phase motor drives, including induction motors and permanent magnet motors, are used in a wide variety of applications and offer fault-tolerant operation under faults in motor windings and converter switches. Symmetrical multi-fed drives based on three-phase modules are of special interest in safety critical applications. They offer simple control under a fault condition. However, even a single open-circuit fault of one switch or winding will cause complete interruption of a faulty module.