DESIGN SLIDING CONTROLLER FOR D-STATCOM USING VOLTAGE COMPENSATION IN THE POWER GRID DISTRIBUTION SYSTEM

Abstract

This article proposes SMC sliding mode control for D-STATCOM to compensate the power distribution system by injecting or absorbing an amount of reactive power when disturbed. The stability of the SMC controller is proven by the Lyapunov stability criterion. The effectiveness of the controller is verified by simulation on Matlab-Simulink. The results confirm the superiority of the proposed controller in terms of its ability to stabilize amplitude and improve voltage quality when small disturbances occur in steady state mode as well as increasing amplitude and reducing voltage fluctuations, recovering quickly to the original value during transients when large disturbances occur in the power system.