Effectiveness of UPQC in a distribution network with DTC drive as load

Power quality is a hot topic of concern for both suppliers and consumers. The increased use of non-linear loads like adjustable speed drives also deteriorates the power quality levels. Therefore, greater emphasis is now being given to the study, evaluation and improvement of power quality especially in power distribution network. In this paper, the application of Unified Power Quality Conditioner (UPQC) with PI controller to improve the power quality in a distribution network with Direct Torque Control (DTC) induction motor drive is investigated. The Simulink model and results of the test system are presented to draw the conclusions.