An Efficiency Optimization Strategy for PMSM Drives by Combination of LMC and Multi-Vector-MPC

This paper presents an efficiency optimization control strategy for two-level three-phase inverter-fed interior permanent magnet synchronous motors (IPMSMs). The loss minimization control (LMC) is combined with the three-vector-based finite control set model predictive control (FCS-MPC) in this method. Through comparing the four hybrid control methods combined by LMC, maximum torque per ampere (MTPA), field oriented control (FOC) and MPC, simulation tests have been carried on a 6.4 kW IPMSM. The results evaluate that the presented method have good dynamic performance and reduce machine’s loss during transient further while maintaining relative low harmonics.