Predictive current control for Permanent Magnet Synchronous Motor based on deadbeat control

Abstract

This paper presents a discrete predictive current control of PMSM (Permanent Magnet Synchronous Motor) based on dead-beat algorithm, in the synchronous frame, to improve the performance of current loop. Based on the mathematical model of PMSM the current controller directly calculated the expected voltage vector according to the current reference and feedback values, then transforms the voltage vector into switch signals with SVPWM model. The robust predictive current control is introduced to decrease the sensitivity of system stability with the model parameters error. Simulation and experiment results show that the PMSM current predictive control scheme improves both the dynamic performance and steady-state precision of the current loop efficiently.