Metodologia para análise da coordenação e seletividade de dispositivos de proteção durante reconfigurações de redes de distribuição

• Ano de defesa: 2014
• Autor(a) principal: Ramos, Maicon Jaderson da Silveira
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Santa Maria; BR; Engenharia Elétrica; UFSM; Programa de Pós-Graduação em Engenharia Elétrica
• Palavras-chave em Português: Coordenação e seletividade; Reparametrização; Redes de distribuição; Religadores microprocessados; Reconfiguração de rede; Selectivity and coordination; Reparameterization; Distribution networks; Microprocessor reclosers; Network reconfiguration; CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA
• Link de acesso: http://repositorio.ufsm.br/handle/1/8546

With the emergence of the concept of Smart Grid (SG), the Power Distribution Systems are undergoing major changes in the way it is operated, studied and analyzed. The breakthrough technology of measurement, automation, control and telecommunication equipment, together with the reduction of the costs of acquisition and implementation, allowed Brazilian electric utilities to invest in automation, control and telecommunication, facing distribution networks. This technological development applied in the networks allows new studies and new methodologies to be developed and implemented by utilities in order to improve their technical and operational performance. Many studies are being conducted in order to propose automatic reconfiguration in the distribution networks, automatic restoration and distribution management system in real time, aiming to optimize the loads distribution, reduce energy losses, improve system reliability and the quality indicators of power supply, among other possible needs of the distribution company. Nowadays a fairly explored point is the switching through automatic devices, which have criteria and assumptions for execution in the network. Among the criteria and assumptions, there is the guarantee of coordination and selectivity of protective devices involved in the reconfiguration after switching and consequent topological change. The need for analysis of protective devices and possible reparameterization of them, justifies the development of a methodology through computational solution, able to analyze the coordination and selectivity of the devices (microprocessor reclosers) after network changes. It is due to this niche opportunities caused by technological development and changes in operating philosophy of distribution networks, that this dissertation has as main objective to develop a methodology to validate the operation condition of protective devices, ensuring the safety and system reliability and proposing new protection settings when needed, which consequently will allow network reconfigurations.