Congestion management in hybrid power markets

• Published in: Electric power systems research Vol. 79; no. 10; pp. 1416 - 1423
• Main Authors: Xiao, Yu, Wang, Peng, Goel, L.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01.10.2009; Elsevier
• Subjects: Applied sciences; Benders decomposition; Congestion management; Disturbances. Regulation. Protection; Electrical engineering. Electrical power engineering; Electrical power engineering; Exact sciences and technology; Generation re-dispatch; Operation. Load control. Reliability; OPF; Power market; Power networks and lines; Reactive power support; Congestion management; Reactive power support; OPF; Benders decomposition; Power market; Generation re-dispatch; Cost minimization; Bilateral agreements; Power system economics; Optimization method; Power system stability; Iterative method; Trade; Reactive power; Electrical network analysis; Transportation network; Power pooling; Power markets; IEEE standards; Contracting service; Interconnected power system; Electricity supply industry deregulation; Optimal power flow; Load management; Economic aspect; Transmission loss; Traffic congestion
• ISSN: 0378-7796; 1873-2046
• DOI: 10.1016/j.epsr.2009.04.011

This paper proposes a one-step methodology for congestion management of a hybrid power market that consists of a power pool and bilateral contracts between market participants. The proposed method is based on a modified Optimal Power Flow (OPF) model to minimize the total cost of generation and ancillary services. Transmission losses, reactive power support and congestion relief are provided centrally in one optimization step. The benders decomposition technique is applied to solve the proposed OPF problem. The congestions are relieved through an iterative process, which makes the congestion management scheme transparent to all the market parties. The IEEE-RTS is analyzed to illustrate the proposed technique.