Design and Development of a simplified SVPWM based Vector Controller for IPMSM with MTPA Strategy

Abstract

This paper presents technique to design current, speed controller using field oriented vector control(FOC) for interior permanent magnet synchronous motor(IPMSM) using a novel simplified SVPWM algorithm. The internal model principle is applied to tune the current loop of ipmsm. To simplified the current loop design procedure, PI controller parameters are directly expressed in terms of machine parameters and desired closed loop bandwidth. Maximum torque per ampere(MTPA) method is used to improve the overall efficiency of motor drive system by injecting demagnetizing current component. A computer simulation shows the validity and effectiveness of proposed algorithm.