Design and Simulation of a Model Predictive Control System for a Novel Dual-Rotor Flux-Switching Permanent Magnet Motor

A model predictive current control (MPCC) system for a novel dual-rotor flux-switching permanent magnet motor (DRFSPMM) is proposed in this paper. According to the characteristics of the current phase angle difference between the inner and outer windings by 90°, the flux linkage is oriented by using two rotor position electrical angles. Thus the mathematical model equations in the dual-three-phase coordinate system are transformed to the dual-dq coordinate system. By discretizing the equations in the dual-dq coordinate system, the predicted current values are obtained to design the cost function. Besides, in the design of the control system, the torque distribution module is used to distribute the torque current to the inner and outer motors flexibly to achieve three different operation modes: outer motor priority, inner motor priority, and mixed operation mode. The effectiveness of the control system is validated by the simulation results.