Otimização de índices de confiabilidade em redes de distribuição de energia elétrica

• Ano de defesa: 2006
• Autor(a) principal: Zambon, Eduardo
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal do Espírito Santo; BR; Mestrado em Informática; Centro Tecnológico; UFES; Programa de Pós-Graduação em Informática
• Palavras-chave em Português: Otimização matemática; Pesquisa operacional; Programação inteira; Programação linear; Ciência da Computação; 004
• Link de acesso: http://repositorio.ufes.br/handle/10/6352

An eletric utility must install protection (reclosers and fuses) and sectionalizing (switches) devices in key points of its distribution network to serve its customers with a reliable power supply. Utility boards or similar commissions define measures (reliability indices) to quantify and analize the eletric utility services. The problem addressed in this work is twofold. First, we want to optimize the allocation of reclosers in a distribution network to improve its reliability indices. The Simulated Annealing meta-heuristic was employed and its results were close to the optimal values in the tests performed. Second, we want to improve the effectiveness of a distribution protective design by identifying the type (recloser, fuse or switch) and location of devices to be installed. A Binary Linear Programming model found in the literature was implemented and tested. Its deficiencies leaded to the development of a more complete Binary Nonlinear Programming model and a specific branch-and-bound algorithm to solve it. The solutions proposed in this work allow an eletric utility to project and restructure the protection design of its distribution networks, allowing it to improve the service provided to its consumers. Hence, the company can cut investiments costs and still ensure a better quality of service to its clients, generating economic benefits to both parties.