Navegando por Autor "VIEIRA, João Paulo Abreu"

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    Avaliação da Implementação do Sistema de Monitoração de Vibração em Unidades Geradoras da UHE – Balbina como Ferramenta de Manutenção Preditiva
    (Universidade Federal do Pará, 2015) SILVA NETO, Vilmar Domingos; VIEIRA, João Paulo Abreu
    As the development of the electrical power market, the maintenance automation has become an intrinsic need to increase the overall economic efficiency of hydropower plants. This dissertation presents an assessment of the implementation of a predictive maintenance system of electrical machines (SIMME) on Balbina hydroelectric power plant in Amazonas, Brazil. The system was elaborated to predict defects, failures or bad operational states of machines of the hydroelectric plant and suggest maintenance intervention and operational emergency actions. The results show that the SIMME improved the economic performance of the hydropower plant.
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    Implantação do Sistema de Monitoração de Vibração em Máquinas Elétricas em Alta Tensão
    (INSTITUTO DE TECNOLOGIA, 2013) SILVA NETO, Vilmar Domingos da; VIEIRA, João Paulo Abreu; LEITE, Jandecy Cabral; AZEVEDO, Raimundo Edney dos Santos; Prof. Dr. Carlos Tavares da Costa Júnior
    This paper presents the development and implementation of an online monitoring system for hydraulic generators operated by Eletrobrás-Amazonas Energia S/A. The system, called SIMME, was designed to evaluate critical physical parameters in 250 MVA rotating machines, using sensors, signal conditioners, and fuzzy logic-based software. The client/server architecture enables data transmission via intranet, providing continuous information to operation and maintenance teams. The system proved to be reliable, low-cost, and effective in fault detection, contributing to predictive maintenance and reducing unplanned downtime.