Implementation of predictive current control for Shunt Active Power Filter

Abstract

Nonlinear loads deteriorate power quality by drawing harmonic and reactive currents at their point of coupling. This paper proposes a predictive current control strategy applied to Shunt Active Power Filter for improving power quality. Proposed approach uses the system discrete-time model to predict the future value of the filter current for different voltage vectors. Selection of the optimal voltage vector aims to minimize the error between reference and predicted current by means of a cost function. The proposed control algorithm is carried out through Matlab\Simulink(TM) environment, simulation and experimental results confirm the effectiveness and the robustness of the proposed control algorithm and compared to hysteresis current control strategy in all operation modes.