Análise teórica e experimental do comportamento do gerador síncrono de polos salientes em regime permanente não senoidal

• Ano de defesa: 2011
• Autor(a) principal: Alves, Manoel Berto
• Tipo de documento: Tese
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Uberlândia; BR; Programa de Pós-graduação em Engenharia Elétrica; Engenharias; UFU
• Palavras-chave em Português: Máquina síncrona; Modelagem; Sistema de energia elétrico; Distorções harmônicas de tensão e corrente; Qualidade da energia elétrica; Simulações computacionais; Sistemas de Energia Elétrica Controle de Qualidade; Máquinas Elétricas Síncronas; Dínamos Corrente alternada; Synchronous machine; Modeling; Electric power system; Harmonic distortion of voltage and current; Power quality; Computer simulations; CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA
• Link de acesso: https://repositorio.ufu.br/handle/123456789/14341

This study aimed at the identification and treatment of harmonic interference in the functioning of Salient Pole Synchronous Machines in order to make the techno-scientific community aware of such events. Mathematical models, computer simulations, laboratory tests and field measurements were developed as well as the creation and simulation of a new voltage waveform for the machine excitation system, which resulted in attenuation of electromagnetic torque oscillations even though this machine is operating under non-sinusoidal condition. To enable the precision and understanding of the rotating electric machine under non-sinusoidal load currents, the modeling and simulations took into account the harmonic components of the spatial distribution of magnetic flux density produced by machine windings, and the temporal harmonic components produced by non-linear loads. Comparisons were made between sinusoidal and non-sinusoidal steady-state synchronous machine operations, in order to give credibility for the developed mathematical models.