Projeto de estabilizadores de sistemas de potência de usinas termelétricas a ciclo combinado

• Ano de defesa: 2007
• Autor(a) principal: Souza, Francis Mary Freire de
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Palavras-chave em Português: Engenharia elétrica; Eletrônica de potência
• Link de acesso: http://www.repositorio.ufc.br/handle/riufc/66688

This dissertation presents the project and implementation of the Power System Stabilizer (or PSS) applied to a Combined Cycle Power Station. The projected PSS is a dynamic compensatory with advanced feature that compensates the lag phase provided by the synchronous generator, exciter and power system. It is added to the mesh of the automatic voltage regulator with the aim of improving the damping electromechanical oscillations. The calculation of parameters is performed through a program developed with the software MATLAB. The classical model of Heffron-Phillips was used to model the system. The obtained parameters are compared to those who are implemented in the combined cycle power station. Simulations of load variations are made with the program ANATEM – CEPEL to analyze the efficiency of the projected PSS and to evaluate the improvement of the system’s dynamic performance. The results show that the parameters of the projected stabilizer get answers more damped in detriment to those applied in the power station.