UPQC-S, A Frontline Deployable Power Line Solution for Holistic Power Quality Enhancement

Abstract

The degradation of the electric power quality due to the escalated use of non-linear loads of commercial and domestic consumers of electric power connected via a distribution line, as well as those of industrial consumers of electric power connected via sub-transmission line, has necessitated to the invention of a variety of custom power devices. It seems more effective to insulate the power line from the effects of the non-linear loads and concurrently ensure a reliable, good quality power supply to all consumer loads, especially critical loads. The Unified Power Quality Conditioners (UPQC) is one such dedicated power quality improving device. Among the multitude of UPQC variants, in this paper the functioning of UPQC-S has been thoroughly investigated for diverse nonlinear loads operating under normal as well as abnormal loading conditions. UPQC-S has been designed and simulated for various nonlinear loading conditions under normal as well as abnormal network conditions. [side abnormalities.] The aforementioned simulation has been performed in MATLAB/SIMULINK.