Optimal Power Flow
Mostrando 37-41 de 41 artigos, teses e dissertações.
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37. Restrições funcionais de desigualdade no FPO Newton tratadas pelo metodo da continuação
One of the best algorithms to solve the Optimal Power Flow (OPF) problem is Newton s method applied to calculate the stationary point of a quadratic approximation to the Lagrangian function, which represents the Kunh- Tucker s first order conditions. Equality constraints are included through Lagrange multipliers, while inequality constraints on variables are
Publicado em: 1995
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38. A MODEL FOR THE INCLUSION OF SECURITY CONSTRINTS IN POWER SYSTEMS COMPOSITE RELIABILITY EVALUATION / UM MODELO PARA INCLUSÃO DAS RESTRIÇÕES DE SEGURANÇA NA ANÁLISE DE CONFIABILIDADE
This work presents a methodology for considering security constraints in Power Systems Composite Reliability Evaluation obtaining índices to evaluate system operation security. The proposed approach is based on the identification of system critical constraints and relaxation of non-critical constraints in the solution of the Optimal Power Flow problem. Some
Publicado em: 1991
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39. INCLUSÃO DE RESTRIÇÕES DE REATIVOS NO FLUXO DE POTÊNCIA ÓTIMO LINEARIZADO / INCLUSION OF REACTIVE VOLTAGE CONSTRAINTS IN LINEARIZED OPTIMAL POWER FLOW
O sistema elétrico é planejado para operar na condição mais confiável possível de atendimento, sem que sejam violadas as restrições operativas a que está sujeito. Para a busca da região segura de operação utilizam-se vários programas de otimização e simulação. O Fluxo de Potência Ótimo (FPO) é uma ferramenta muito útil para a busca do po
Publicado em: 1991
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40. O metodo dual-Newton aplicado ao fluxo de carga otimo
An optimal power flow solution method is proposed in this work. The presented method has been developed from an association of an Augumented Lagrangian function with the original problem. The solution of the problem is searched through Newton s method for equalitv constraints and through an updating of dual variables and penalties related to the inequalitv c
Publicado em: 1990
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41. Reduction in myocardial infarct size at 48 hours after brief intravenous infusion of ATL-146e, a highly selective adenosine A2A receptor agonist
This study was undertaken to determine whether the myocardial infarct-sparing effect of ATL-146e, a selective adenosine A2A receptor agonist, persists without a rebound effect for at least 48 h and to determine the optimal duration of ATL-146e treatment in anesthetized dogs. Reperfusion injury after myocardial infarction (MI) is associated with inflammation
American Physiological Society.