Alocação otima de reguladores de tensão em redes de distribuição de energia eletrica / Optimal placement of voltage regulators in distribution systems

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

This dissertation reports the development of a heuristic method for sizing and allocating voltage regulators in distribution radial primary feeders. The goals are to improve the voltage profile, to minimize the real power losses and to minimize equipment installation and maintenance costs. The proposed algorithm for the optimal allocation of voltage regulators in radial distribution networks comprises two steps. The first step aims to select, install and set the tap of voltage regulators at buses that result in the best technical conditions (smallest voltage deviation and real power losses reduction). In the second step, an attempt is made to reduce the number of voltage regulators initially allocated in the first step, by moving them appropriately until the best economical condition (minimum installation and maintenance costs) is reached. A computational program was implemented to evaluate the efficiency of the proposed method. Simulations have been carried out for theoretical and realistic distribution systems, for light and heavy load conditions, and the method showed to be fast and efficient, providing reliable results. Simulations results for a 70-bus distribution system and the comparison with those provided by another method proposed in the literature are shown. Also, simulation results are shown for realistic 136-, 202-, and 400-bus realistic systems

ASSUNTO(S)

sistemas de energia eletrica - controle heuristics sistemas de energia eletrica - distribuição electric power systems control heuristica electric power distribution systems

ACESSO AO ARTIGO

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