Model predictive current control schemes for five-phase permanent-magnet synchronous machine based on SVPWM

Abstract

Multiphase machine drive solution has been a very popular option in high-power low voltage application with high reliability in the recent decade. This paper presents a simple model predictive current control (MPCC) with space vector modulation (SVM) for five-phase permanent magnet synchronous machines. Predictive control techniques, already implemented in three-phase drives, have been recently adapted to the multiphase case. Schemes proposed so far have been demonstrated high performance at the expenses of a higher degree of computational cost and ill-defined switching frequency. In this study, based on the conventional predictive method with employing the best vector in a control horizon, a predictive SVPWM current control technique with fixed switching frequency is proposed for five-phase AC drives. Then a comparison will be given between these two schemes, both of them can achieve fast torque and current response. And the predictive current control with SVPWM technique can keep the constant switching frequency with low-computational cost, which results that electrical noise suppression is easy to filter. Simulation and experimental results are provided to examine the benefits of the proposed current control method.