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Renato K. Miyamoto
Departamento de Engenharia Elétrica, Universidade Tecnológica Federal do Paraná, Cornélio Procópio/PR
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Alessandro Goedtel
Departamento de Engenharia Elétrica, Universidade Tecnológica Federal do Paraná, Cornélio Procópio/PR
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Marcelo F.Castoldi
Departamento de Engenharia Elétrica, Universidade Tecnológica Federal do Paraná, Cornélio Procópio/PR
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Sebastião L. Nau
Departamento de Pesquisa e Inovação Tecnológica, WEG Equipamentos Elétricos S.A, Jaragúa do Sul/SC
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Adilson C. Machado
Departamento de Pesquisa e Inovação Tecnológica, WEG Equipamentos Elétricos S.A, Jaragúa do Sul/SC
Keywords:
Flywheel, Induction generator, Momentary Voltage Sag, Energy quality
Abstract
This work presents a method of restoring electrical energy by applying an induction generator connected to the electrical grid. The method uses a cylindrical flywheel with a high inertia coupled to the generator to store kinetic energy, which is converted into electrical energy. Toroidal inductors are used to mitigate the effects of current transients in the injection of energy to the grid. The proposal is validated, employing tests on an experimental bench. The results presented show that this system can supply under-voltage of up 0.2pu three-phase and 0.4pu per phase.