Application of Distributed Series Reactors in relieving congestion costs

In the last decades, generation and demand have been growing steadily. Transferring the new generation to load centers requires the expansion of transmission infrastructure. However, building new transmission lines is a long drawn and challenging process. Therefore, optimal use of transmission lines and increasing their transfer capacity are of interest to system operators. Lines congestion can affect transfer capacity of transmission lines and impose congestion costs to transmission system. This paper introduces the application of Distributed Series Reactors (DSR) in relieving lines congestion and consequently, congestion costs in power market. In the work here, two sets of Security Constrained Optimal Power flow (SCOPF) simulations were performed for different load levels; with and without employing DSR modules. Simulation results show that DSR modules can effectively relieve congestion costs when they are employed on congested transmission lines.