Author : Arathi Sunkara, S. B. Karajgi, Rashmi Kannur and Sandeep S Mudakannavar

This paper presents the mitigation of voltage sags and harmonic distortion using Distribution Static Compensator (D-STATCOM) in existing 11kV/440v distribution system. The D-STATCOM is controlled using decoupled theory using the PI controller. This model is based on voltage source converter (VSC) principle. The D-STATCOM injects a current into the system to improve the voltage profile and also to reduce the harmonic distortion in the system. The simulations are carried out using Matlab/simulink. The results are presented.

Keywords: Distribution system, voltage sag, D-STATCOM, optimal allocation, total harmonic distortion (THD).

Article published in International Journal of Current  Engineering  and Technology, Vol.4,No.3 (June- 2014)