Estimação de Parâmetros em Geradores Síncronos de Pequeno Porte

• Processo: 25/12813-3
• Modalidade de apoio: Bolsas no Brasil - Iniciação Científica
• Data de Início da vigência: 01 de setembro de 2025
• Data de Término da vigência: 31 de agosto de 2026
• Área de conhecimento: Engenharias - Engenharia Elétrica - Sistemas Elétricos de Potência
• Pesquisador responsável: Elmer Pablo Tito Cari
• Beneficiário: Adriele Nery Martins da Silva
• Instituição Sede: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brasil
• Assunto(s): Estimação Velocidade Estimação de parâmetros
• Palavra(s)-Chave do Pesquisador: abertura de curto-circuito | Estimação | geradores síncronos | rejeição de carga | Velocidade | Estimação de Parâmetros

Resumo

For the efficient operation of electrical generators in power systems, it is essential to validate and estimate the machine parameters. Through these parameters, time-domain simulations can be performed to predict the generator's behavior during transients and, consequently, propose solutions to mitigate such effects, such as load shedding, protection scheme calibration, and instability correction. These parameters may change over the generator's lifespan, and the lack of accurate data can lead to unreliable simulations, potentially impacting design decisions. The need for parameter estimation becomes even more relevant due to the increasing integration of distributed energy sources, which often rely on small-scale synchronous generators. Standard tests for synchronous generators described in the literature usually assume constant rotor speed. However, this assumption may not hold true for small generators, which typically have low inertia. This work aims to estimate generator parameters using load rejection and short-circuit opening tests, considering the generator's speed (as a time-varying measured input) in the model. An estimation method will be developed, and the results will be validated with real measurements from laboratory tests on electric machines.