Design and Control of a Novel Fault-tolerant Dual-armature Winding Flux Modulated Permanent Magnet Machine

Multiphase machines are considered suitable options in high-performance industry applications for their advantages such as enhanced toque density and fault-tolerance capability. However, in the case of extremely arduous condition, the fault-tolerance capability of multiphase machines is quite limited. This paper proposes a multiphase dual-winding flux modulated permanent magnet machine with two independent sets of armature windings placed on stator and rotor slots, which realizes better torque enhancement and significant fault-tolerance capability. The topologies of the machine and the drive are introduced first, followed by the mathematic model in stationary coordinate system and synchronous rotating coordinate system. Then, the toque performance of the proposed machine is analyzed by FEA. Finally, the excellent transient characteristics and fault-tolerant performance of the proposed machine is proved in the Matlab/Simulink simulation.