977 resultados para electric power apparatus


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This article analyzes the case of the proceedings against Argentina’s Military Juntas that led to jail those responsible for heinous crimes committed during the military dictatorship. The said proceeding has a high symbolic value in the struggle for human rights in Latin America and is relevant and timely in Brazil where the right to the truth regarding the missing people during the military dictatorship is in debate, as well as the invalidation of the Amnesty Act regarding the common crimes of torture, rape and / or kidnapping, among others. In the case of Argentina, following Roxin’s doctrine of mediate authorship, the Court held that the crimes were committed by the military through the use of an organized power apparatus and emphatically dismissed allegations that such crimes were justified in the so-called “dirty war”. Thus, the case against the Military Juntas has become a paradigmatic one, not only in Argentina, where many military leaders had to respond to criminal actions, but for all countries in the region that faced similar situations in recent history.

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Pós-graduação em Engenharia Elétrica - FEIS

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Pós-graduação em Engenharia Elétrica - FEIS

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Pós-graduação em Engenharia Elétrica - FEIS

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Pós-graduação em Engenharia Elétrica - FEIS

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Transmission expansion planning (TEP) is a classic problem in electric power systems. In current optimization models used to approach the TEP problem, new transmission lines and two-winding transformers are commonly used as the only candidate solutions. However, in practice, planners have resorted to non-conventional solutions such as network reconfiguration and/or repowering of existing network assets (lines or transformers). These types of non-conventional solutions are currently not included in the classic mathematical models of the TEP problem. This paper presents the modeling of necessary equations, using linear expressions, in order to include non-conventional candidate solutions in the disjunctive linear model of the TEP problem. The resulting model is a mixed integer linear programming problem, which guarantees convergence to the optimal solution by means of available classical optimization tools. The proposed model is implemented in the AMPL modeling language and is solved using CPLEX optimizer. The Garver test system, IEEE 24-busbar system, and a Colombian system are used to demonstrate that the utilization of non-conventional candidate solutions can reduce investment costs of the TEP problem. (C) 2015 Elsevier Ltd. All rights reserved.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)