Implementation of Adaptive Sliding Mode Control Theory on Single Phase Active Power Filter

3 (Assistant Professor, Department of electrical engineering, Rajasthan technical University kota, (India) ABSTRACT In recent years, active power filters has been widely studied. A lot of active power filtering methods has been proposed to reduce total harmonic distortion (THD) of source current and to improve the power factor on electrical system. Several advance control strategies are based on some advance technologies such as neural network, genetic algorithm and fuzzy logic. These advance control strategies gives high performance and flexible designs. On the contrary the cost of implementation of these control algorithms is very high. The main aim of this paper is the application of the Adaptive sliding mode control theory to single-phase shunt active power filter, since this technique has been successfully applied to other areas of power electronics. Sliding mode controller is able to design a low cost active filter with low THD and high robustness under external disturbances. A complete analysis of sliding mode control theory is given and MATLAB/Simulink based simulation results are reported to verify the theory.