Simulation of custom power electronic device D-STATCOM — A case study

In this paper, a Distribution STATic COMpensator (DSTATCOM) is proposed for compensation of reactive power and unbalance caused by various loads in distribution system. Distribution static compensator is based on the VSC principle. A D-STATCOM injects a current into the system to correct the voltage sag, swell and interruption An evaluation of a methods is made to derive reference currents for a DSTATCOM. This method is known as synchronous reference frame theory. This scheme are simulated under MATLAB environment using SIMULINK and PSB toolboxes. A distribution system supplying an unbalanced and nonlinear load is taken up for study. Simulation results demonstrate the performance of this schemes for the control of DSTATCOM.