Assessment of transmission outage Contingencies’ effects on bidding strategies of electricity suppliers

Autor: Mojgan Mollahassani-pour, Masoud Hasani Marzooni, Iman Taheri
Rok vydání: 2020
Předmět:
Zdroj: International Journal of Electrical Power & Energy Systems. 120:106053
ISSN: 0142-0615
DOI: 10.1016/j.ijepes.2020.106053
Popis: This paper presents a solution concept for quantifying effect of transmission outage contingencies on wholesale electricity markets. For this purpose, an equilibrium-based model is employed to investigate the optimal bidding strategies of contingency-constrained generation companies (GENCOs). All GENCOs submit their bids to the independent system operator (ISO) in economic model of supply function equilibrium (SFE). Economic behaviour of a GENCO is formulated as a bi-level programming (BLP) problem. In the upper level, the profit of intended GENCO is maximized and in the lower level, the ISO clears the market via solving a bid-based preventive contingency constrained economic dispatch (PCCED). A constraint-reduced Primal-Dual Interior Point Method (PDIPM) is proposed to determine the optimal solution of PCCED. To ease the computation burden, a novel Contingency Filtering (CF) technique is devised to filter out non-critical contingencies. It is shown that non-critical contingencies can be identified by solving series of Linear Programming (LP) problems. Also, the non-cooperative Game Theory (GT) is utilized to determine the equilibrium of oligopolistic competition of contingency-constrained GENCOs. Finally, effect of contingency constraints on the optimal bidding strategies of GENCOs is investigated through simulation studies.
Databáze: OpenAIRE