Enhancement of Power Quality in Distribution System using DSTATCOM

Consumers required always quality power at load bus. Therefore, it is essential to use specialized power devices, such as FACTS devices, in distribution systems. A DSTATCOM is mostly used device which is connected very near to load bus for improving power quality. Usually, high reactive power will be demanded by loads connected at load bus. This demanded reactive power will cause decrease in RMS voltage at load bus. Hence a proper controller is required to maintain constant voltage during changes in loads by compensating reactive power which demanded by loads. With the proposed method, stable and constant voltage is maintained at load bus during changes in load. Under various operating situations, extensive findings are presented using MATLAB/Simulink. The detailed modeling and control strategy of DSTATCOM is also included in this paper.