DSSC: A Distributed Power Flow Controller

Distributed Static Series Compensator (DSSC) is a distributed power flow controller connected in series providing active power flow control through transmission line in cost effective way. DSSC is a low power compensator that can be directly attached on the existing transmission line. This paper presents modeling and control of Distributed Static Series Compensator in MATLAB software. Mathematical model of DSSC device is developed and it is implemented on two bus system to demonstrate power flow control through line. For significant power flow control number of DSSC devices need to be connected on the line. A particle swarm optimization technique is used to find optimum number of DSSC devices on the existing line with the objective that no line would be overloaded. Optimum number of DSSC devices is implemented on IEEE-14 bus test system and demonstrated power flow control.