Framework for dynamic congestion management in open power markets

Author

Ma, J. ; Song, Y.H. ; Lu, Q. ; Mei, S.

Author_Institution

Dept. of Electr. Eng., Tsinghua Univ., Beijing, China

Volume

149

Issue

2

fYear

2002

fDate

3/1/2002 12:00:00 AM

Firstpage

157

Lastpage

164

Abstract

Congestion management is one of the key functions of any independent system operator (ISO) in the restructured power industry. Improper implementation of congestion management will sabotage the security and reliability of the power system, and the free trading in the markets. Based on a hybrid market structure, this paper presents a new framework for dynamic congestion management when system stability is seriously infringed due to unexpected contingencies. An integrated dynamic congestion management market is proposed, in which all market participants are encouraged to participate by submitting their offers and bids for their owned control means. By optimally utilising the available resources in this market, a system operator can stabilise the post-contingency system in an economical way. A modified quasi-newton method is employed to solve the formulated dynamic optimisation problem. The IEEE 30-bus test system is studied to illustrate the proposed method

Keywords

electricity supply industry; power system reliability; power system security; power system stability; power transmission; IEEE 30-bus test system; dynamic congestion management; dynamic optimisation; free trading; hybrid market structure; independent system operator; open power markets; post-contingency system; quasi-Newton method; reliability; restructured power industry; security; system operator; system stability; unexpected contingencies;

fLanguage

English

Journal_Title

Generation, Transmission and Distribution, IEE Proceedings-

Publisher

iet

ISSN

1350-2360

Type

jour

DOI

10.1049/ip-gtd:20020074

Filename

998009