132 / 2017-09-11 11:15:34

Current Predictive Control of Three-Phase PWM Rectifier

PWM rectifier ;current predictive control;fuzzy PI ;power factor

Abstract— A predictive current control strategy is proposed to solve the problems of slow dynamic response and DC voltage fluctuation for traditional current inner loop controller based on dq transformation applications in three-phase PWM voltage source rectifier （VSR）. Firstly, the discrete mathematical model of VSR is established. Secondly, a fuzzy PI controller with voltage outer loop is designed for the system. Then, the MATLAB/SIMULINK platform of three-phase rectifier is set up to verify the analysis results.This control method is simple, easy to implement, and has certain practical value.