Virtual-flux-based power predictive control of three-phase PWM rectifiers using space-vector modulation

摘要

This paper proposes a power predictive control (PPC) method of three-phase pulse width modulated (PWM) rectifiers without a proportional-integral (PI) controller. The proposed PPC method calculates the optimized voltage vector by analyzing the relationship between virtual flux (VF), active power, converter voltage, and filter parameter. Thus the overshoot does not occur and the fast and accurate power control becomes possible. The predictive algorithm computes the power error that would be produced by applying each vector and selects the one that contributes with the minimum error. The simulation result proves that the proposed method provides low power ripple and quick dynamic performance.