POWER QUALITY IMPROVEMENT BY USING DSTATCOM

Abstract

Abstract - Maximum AC loads consumes reactive power, it causes poor power quality in power system. The DSTATCOM is a compensating device which is used to control the flow of reactive power in the distribution systems. The complete background of the compensating devices and power electronic application in compensating devices is presented in this paper and also the compensation using the DSTATCOM modeling is also discussed. The detailed modeling and simulations of different control strategies are presented and implemented along with the necessary equations in the MATLAB simulink using the sim power systems tool boxes. The PI controllers are used for the implementation of the models and are discussed. Simulation results are we discussed and various case studies applied depending on the various loads like resistive, inductive and capacitive on the DSTATCOM simulink models and the simulation results are studied. Keywords: Reactive power compensation, DSTATCOM, dq-model, power control and power quality.