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Electricity market equilibrium analysis based on nonlinear interior point algorithm with complementarity constraints
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Petoussis, S. G., Zhang, X. P. and Godfrey, K. R. (2007) Electricity market equilibrium analysis based on nonlinear interior point algorithm with complementarity constraints. IET Generation, Transmission and Distribution, Vol.1 (No.4). pp. 603-612. doi:10.1049/iet-gtd:20050541 ISSN 1751-8687.
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Official URL: http://dx.doi.org/10.1049/iet-gtd:20050541
Abstract
This paper presents an interior point algorithm based on a.c. network model for determining the Nash supply function equilibrium (SFE) of bid-based electricity markets. The SFE problem is considered as a bi-level game. At the first level, the problem begins with the formulation of an optimal power flow (OPF) interior point-based algorithm to handle the independent system operator (ISO) problem for maximising social welfare. This algorithm is based on the OPF with a.c. network transmission model taking into account all the operating aspects such as the generation capacity limits, bus voltage limits, transmission line constraints, network losses and especially the effect of the reactive power. The resulting Karush-Kuhn-Tucker (KKT) conditions of the problem at the first level are then reformulated using nonlinear complementarity constraints and incorporated as equality constraints in the second-level formulation for maximising the individual profit for each strategic generating firm. By employing a special nonlinear complementarity function, the complementarity constraints are then transformed into nonlinear algebraic expressions, thus the KKT conditions of the resulting combined problem can be derived. The final problem is then solved iteratively based on the solution techniques of the interior point algorithm. Numerical examples of a three-bus system, the IEEE 14-bus system and the IEEE 30-bus system, show that the algorithm can successfully determine the electricity market equilibrium with the a.c. network model.
Item Type: | Journal Article | ||||
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Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
Journal or Publication Title: | IET Generation, Transmission and Distribution | ||||
Publisher: | Institution of Engineering and Technology | ||||
ISSN: | 1751-8687 | ||||
Official Date: | July 2007 | ||||
Dates: |
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Volume: | Vol.1 | ||||
Number: | No.4 | ||||
Number of Pages: | 10 | ||||
Page Range: | pp. 603-612 | ||||
DOI: | 10.1049/iet-gtd:20050541 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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