Abstract
FACTS Technology makes transmission grid more smart and controllable. Distributed Static Series Compensator (DSSC) is a Distributed FACTS device and it can be attached directly on existing transmission line to provide cost effective power flow control through line. DSSC alters line reactance and provides reactance compensation in inductive and capacitive mode of operation. In this paper voltage stability is analyzed on DSSC compensated system. Optimum number of DSSC devices to be connected on existing line is found to remove transmission overloads using Particle Swarm Optimization. The objective of optimization problem is written such that no transmission line overloads, network losses reduces and compensation becomes cost effective. Voltage stability is studied on IEEE-14 bus system compensated by optimum number of DSSC devices operating in inductive and capacitive mode. Maximum loading point is calculated by solving continuation power flow using MATLAB.
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