Congestion Management of Power Transmission lines: A Survey on Techniques, Methodology and Approaches

Globally power industry is slowly moving towards the restructuring and deregulation. Restructuring of power industry is wider alteration and has introduced the concept of electricity as commodity and price based power market, which simultaneously achieving the reliability and quality of power. The deregulated electricity market faces lots of challenge and among there, one is congestion of lines. Congestion rises due to competitive power market environment in which tendency of each participant is to get maximum benefit. Congestion has created the threat to reliability and power system security through violation of transmission capacity limits of line. This paper reviews some of important methods, techniques and approaches used by various researcher for management of congestion of lines. The pivotal role of conventional FACTS devices for immediate relief of congested lines and artificial intelligence techniques are the modern concept mentioned in this review work.