Design of a Dynamic Reactive Power Compensator (DRPC) to Improve the Power Factor of a Load Center

Abstract

Power systems loads are very dynamic. Varying reactive power causes voltage fluctuation, line overloading, increase power transmission loss and voltage instability. To minimize these effects, the network operators charge for kVA demand, which forces the customers to reduce the reactive power consumption. This paper discusses about the Dynamic Reactive Power Compensator (DRPC) as one of the FACTS device technology. Continuous and smooth reactive power compensation will improve the power system performance. This brings down voltage fluctuation, power loss in the transmission system and threat on instability while reducing the kVA demand charges. Further the transmission lines can be utilized to transmit more active power while improving the reliability of the supply. A control system for DRPC has been developed; simulated using EMTDC/PSCAD and results are provided in the paper. This paper presents a complete preliminary simulation study of a DRPC controller.