Avaliação de desempenho de um algoritmo de localização de faltas a um terminal utilizando ondas viajantes e transformada wavelet discreta em uma linha de transmissão de 69 kV

• Ano de defesa: 2024
• Autor(a) principal: Amade, Momade Juma
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Santa Maria; Brasil; Engenharia Elétrica; UFSM; Programa de Pós-Graduação em Engenharia Elétrica; Centro de Tecnologia
• Palavras-chave em Português: Localizador de faltas; Linhas de transmissão; Ondas viajantes; Fault locator; Transmission lines; Traveling waves; CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA
• Link de acesso: http://repositorio.ufsm.br/handle/1/33337

The effective localization of faults in electrical power transmission lines is extremely important as it allows the maintenance team to move with precision, thus providing faster restoration of the electrical power system's operation. Consequently, a high degree of reliability and continuity in energy supply is achieved. This work presents a performance evaluation of a fault location algorithm for a 69 kV transmission line. The method employed utilizes traveling waves and discrete wavelet transform, utilizing data available only at a single terminal. The model analyzes data from the fault line obtained from Simulink simulations, which are extensively tested for various scenarios such as the influence of fault incidence angle, impact on the relationship between source impedance and line impedance, and noise influence in determining the fault distance. The algorithm accurately locates different types of faults at distances of (25.50 and 75) km, with errors ranging from 0.13% to 0.65%, for a 100 km transmission line.