Modelling and Performance Analysis of a DSTATCOM using ISCT Control Technique

This paper chiefly deals with the performance of DSTATCOM as a load compensator. For enhancing the power quality and so as to mitigate harmonics it is employed on the load side. The reactive power is absorbed or generated by DSTATCOM by regulating the bus voltage. The most reason for occurring of the power quality issues is because of the non-liner loads that were employed by the consumers. DSTATCOM works as inductive or capacitive modes basing on the system voltage. The analysis is performed on the issues in the distribution side by employing the DSTATCOM compensation in this paper. In this paper,we had adopted Instantaneous Symmetrical Compound Theory (ISCT) controller to mitigate harmonics on the source side. The harmonics are due to the increase in the usage of non-linear loads by the consumers. The DSTATCOM regulates the bus voltage by absorbing or generating reactive power. The results are extracted using extensive digital simulation performed in MATLAB/SIMULINK environment.