Title :
Optimal power flows of interconnected power systems
Author :
Aguado, José A. ; Quintana, Victor H. ; Conejo, Antonio J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Waterloo Univ., Ont., Canada
Abstract :
The work presented in this paper seeks to provide a theoretically sound, yet practical foundation for the implementation of inter-utilities power exchanges based on spot pricing. The proposed approach allows the operational independence of each utility. Using decomposition-coordination techniques, a multi-area optimal power flow problem is reformulated as a master problem and a set of area-OPF subproblems, each associated with one area. An interior-point/cutting-plane method is used to reduce the number of iterations in the numerical solution of the nondifferentiable master problem. The paper includes test results on IEEE-based systems
Keywords :
costing; load flow; power system economics; power system interconnection; IEEE-based systems; area-OPF subproblems; decomposition-coordination techniques; inter-utilities power exchanges; interconnected power systems; interior-point/cutting-plane method; iterations reduction; multi-area optimal power flow problem; nondifferentiable master problem; optimal power flows; spot pricing; Acoustical engineering; Costs; Electricity supply industry; Lagrangian functions; Load flow; Optimal scheduling; Power engineering and energy; Power engineering computing; Power system interconnection; Pricing;
Conference_Titel :
Power Engineering Society Summer Meeting, 1999. IEEE
Conference_Location :
Edmonton, Alta.
Print_ISBN :
0-7803-5569-5
DOI :
10.1109/PESS.1999.787421
