[en] CONTINGENCY-CONSTRAINED UNIT COMMITMENT WITH N-K SECURITY CRITERION: A ROBUST OPTIMIZATION APPROACH

[pt] ALEXANDRE STREET DE AGUIAR

[pt] FABRICIO CARLOS PINHEIRO OLIVEIRA

[pt] JOSE MANUEL ARROYO

[en] BILEVEL PROGRAMMING

[en] UMBRELLA CONTINGENCY

[en] ROBUST OPTIMIZATION

[en] N-K SECURITY CRITERION

[en] CONTINGENCY-CONSTRAINED UNIT COMMITMENT

[en] This paper presents a new approach for the contingency-constrained single-bus unit commitment problem. The proposed model explicitly incorporates an n-K security criterion by which power balance is guaranteed under any contingency state comprising the simultaneous loss of up to K generation units. Instead of considering all possible contingency states, which would render the problem intractable, a novel method based on robust optimization is proposed. Using the notion of umbrella contingency, the robust counterpart of the original problem is formulated. The resulting model is a particular instance of bilevel programming which is solved by its transformation to an equivalent single-level mixed-integer programming problem. Unlike previously reported contingency-dependent approaches, the robust model does not depend on the size of the set of credible contingencies, thus providing a computationally efficient framework. Simulation results back up these conclusions.

2010-12-10

[pt] TEXTO

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INGLÊS

https://www.maxwell.vrac.puc-rio.br/colecao.php?strSecao=resultado&nrSeq=16613@2