Volt/var Control in Distribution Systems as a Multiobjective Optimization Problem

نویسندگان

  • ANGELO M. F. ALMEIDA
  • BENEMAR A. SOUZA
  • HELON D. M. BRAZ
  • FRANKLIN M. P. PAMPLONA
چکیده

⎯ The integrated control of voltage and reactive power (volt/var) on radial distribution feeder is formulated as a multiobjective optimization problem to be solved trough the Strength Pareto Evolutionary Algorithm (SPEA2), a relatively recent technique of recognized computational efficiency. Two objectives has been established: voltage level variation and power and energy losses including costs of losses and costs of equipments. The decision variable are localization of capacitor banks and regulator banks and operation schedule these equipments on different load level. Application to distribution system of a Brazilian utility company has been done. One among these studied cases is presented. Keywords⎯ Multiobjective, Integrated Control, Distribution Systems, SPEA2. Resumo⎯ O controle integrado de tensão e reativos (volt/var) em alimentadores radiais de distribuição é formulado como um problema de otimização multiobjetivo para ser resolvido via método Strength Pareto Evolutionary Algorithm (SPEA2), que é uma técnica relativamente recente, de reconhecida eficiência computacional. Dois objetivos são considerados: localização de bancos de capacitores e bancos de reguladores de tensão, bem como a programação de operação destes equipamentos em diferentes níveis de carga. As variáveis de decisão são a localização e os tap’s de operação dos bancos de reguladores de tensão e de capacitores, suas localizações e programações de operação para três condições de carga. Aplicações a sistemas de distribuição de uma concessionária brasileira foram realizadas e um dos casos estudados é apresentado. Palavras-chave⎯ Multiobjetivo, Controle integrado, Sistemas de Distribuição, SPEA2.

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تاریخ انتشار 2007