Congestion Management of IEEE 30 Bus System Using Thyristor Controlled Series Compensator

Deregulation of power sector leads to overloading of transmission lines due to high demand of consumers. To fulfill demand of power, generation companies produce more output, but transmission lines are the conventional ones and they get congested as they carry more power than its capacity. To reduce congestion FACTS devices are used, which control power flow and reduce losses, thus reduces congestion. In this paper Thyristor Controlled Series Compensators (TCSC) has been used, TCSC is a series FACTS device which changes reactance of transmission line and thus controls power flow through that line, leads to reducing congestion. Appropriate location of TCSC has been found out by various indices. TCSC placement is done at these locations under base case and varying load condition and improvement in transmission line loading is observed. Work is carried out on IEEE 30 bus test system.