The Efficiency of Current Prediction Controlled Shunt Active Power Filter Based on Three Level Inverter in Balanced and Unbalanced Network Cases

Authors : Bachar RAHİMA, Golea AMAR, Benchouia M-T

Pages : 106-118

View : 13 | Download : 6

Publication Date : 2017-09-30

Article Type : Review Paper

Abstract :This paper presents a comparison study between two control methods associated with a shunt active power filter based on three-level type cascaded inverter. The first method is based on the conventional PI regulator and the second is based on the predictive current controller.   The three-level type cascade inverter has more advantages relatively to the two-level inverter; among them: better total harmonic distortion, reduced semiconductor switches ratings and reduced switching losses. The capacitor voltage control technique is used for harmonic extraction algorithm. The latest is advantageous compared with many harmonic current extraction techniques. To improve the performance of the active filter a predictive current controller based on the supply current is applied. Simulation results demonstrate that the shunt active filter associated with a predictive current controller leads to an excellent performance compared to the PI controller.
Keywords : Shunt active filter, Three level inverter, PI controller, Predictive controller