Voltage Stability Index Improvement IN RDS USING DSTATCOM

Abstract

Interconnected radial distribution system consists of the large number of the nodes and branch   es to meet the required load demands. In case of Pakistan, rising demand of electricity causes the exceeding burden on radial distribution system which primarily affect the performance of whole network that could leads to voltage collapse, so it is desired to maintain the voltage at every bus within permissible limits. Various methods like DSTATCOM and other shunt connected devices are employed to overcome voltage stability index issues but proper sizing and placement is also a major challenge in the network. This paper presents Particle Swarm Optimization algorithm that identifies voltage stability index for the weakest bus in the system and determines the   proper location and size of DSTATCOM to be installed on the real time HESCO feeder. Results show that the placement of DSTATCOM at proper location has improved the VSI, reduced the total power loss and enhanced the voltage profile.