Voltage sag compensation using D-STATCOM and DVR in distribution system: article/ Mohd Ridhwan Abdul Rani

This paper presents the compensation of voltage sag in distribution system using Distribution Static Compensator (D-STATCOM) and Dynamic Voltage Restorer (DVR). Both models are based on the Voltage Source Converter (VSC) principle. D-STATCOM injects a current into the system to mitigate the voltage sags and DVR inject the voltage into the system to mitigate the voltage sags. The performance of DVR and D-STATCOM was studied by varying the supply voltage and fault resistance. The simulations were performed using MATLAB SIMULINK version R2010.