Implementation of D-STACTOM for Improvement of Power Quality in Radial Distribution System

Abstract

D-STATCOM (Distribution Static Compensator) is a shunt device which is generally used to solve power quality problems in distribution systems. D-STATCOM is a shunt device used in correcting power factor, maintaining constant distribution voltage and mitigating harmonics in a distribution network. D-STATCOM is used for Grid Connected Power System, for Voltage Fluctuation, for Wind Power Smoothening and Hydrogen Generation etc. This paper D-STATCOM is used in Electrical Power System for Power Quality Improvement. Relevant solutions which applied nowadays to improve power quality of electric network according to the five aspects of power quality- harmonics, fluctuation and flick of voltage, Voltage deviation, unbalance of 3-phase voltage and current frequency deviation. The D-STATCOM injects a current into the system to mitigate the voltage sags. LCL Passive Filter was then added to D-STATCOM to improve harmonic distortion and low power factor. The simulations were performed using MATLAB SIMULINK version R2009a.