Research on current predictive control for active power filter

Abstract

This paper presents a study on predictive control for current closed loop control of active power filter (APF). Through analyzing the mathematical model of APF and predictive control theory, the current predictive control (CPC) of active power filter is deduced. The mathematical expressions of predictive model, feedback adjustment and optimization control are analyzed and the relationship between control parameters and system performance is discussed. The proposed method is tested on a DSP-based APF system. The results of simulation and experiment show that the method improves the controlling precision and dynamic performance of APF and it is correct and feasible.