Engenharia Eletrônica (UACSA)
URI permanente desta comunidadehttps://arandu.ufrpe.br/handle/123456789/2916
Siglas das Coleções:
APP - Artigo Publicado em Periódico
TAE - Trabalho Apresentado em Evento
TCC - Trabalho de Conclusão de Curso
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2 resultados
Resultados da Pesquisa
Item Desenvolvimento e Avaliação de Desempenho de um Sistema de Posicionamento automático de Placas Fotovoltaicas(2024-03-05) Santos, Marcos Paulo Jerônimo dos; Aguedo, Reinel Beltrán; http://lattes.cnpq.br/2770313428458626; http://lattes.cnpq.br/7884920585085694The growing demand for renewable energy has driven the development of more efficient and accessible technologies, highlighting photovoltaic energy as one of the main sources of clean energy. However, the efficiency of current solar panels is still insufficient to meet the high energy demand, as it directly depends on the alignment of the solar panels relative to the sun. This research aims to develop a solar tracker prototype and evaluate solar tracking methods as strategies to increase the efficiency of photovoltaic panels. Through a comparative analysis, different approaches to automate the positioning of solar panels were explored, including single-axis and dual-axis tracking systems, with and without the use of PID controllers. For this purpose, atesting platform was developed to simulate the sun’s position throughout the day, allowing the prototype to accurately follow the path of the sunlight. Data were collected using a SCADA supervisory system, enabling a detailed and controlled analysis of the efficiency of the different tracking methods, highlighting the superiority of the dual-axis tracker. The results confirm that the use of PID controllers can provide significant gains in energy efficiency.Item Sistema de supervisão e controle da planta piloto do LIAC(2020-11-04) Silva, Natasha Milena do Santos da; Cervantes, Ania Lussón; Gomes, Flávio da Silva Vitorino; http://lattes.cnpq.br/3701230748191590; http://lattes.cnpq.br/5793691069517813Industrial automation is an area that stands out more and more for the benefits it brings to the production process, they are: improving quality and productivity and reducing costs. Therefore, it is extremely important that engineering graduates put their knowledge on the subject into practice, and didactic plants are great tools for this purpose. This article presents a supervision and automatic control system of the pilot plant present in the Laboratory of Instrumentation, Automation and Control (LIAC) at UACSA-UFRPE, aiming to cover the first three levels of the automation pyramid: field devices, control and supervision. The system architecture consists of two reservoirs, a programmable logic controller S7-1200, sensors, actuators, and the Elipse SCADA and Matlab software. The methodology for modeling using experimental identification for the level system is presented applying an input step to the plant, with the data being accessed from the supervisory system by the network through the OPC protocol. With the model obtained, simulation and experimentation results are presented using the Proportional-Integral (PI) control strategy for changes in the reference. Finally, a plant supervision and control system and a human-user interface are developed, allowing supervision of the four process variables: level, temperature, pressure and flow, and the level control in the upper reservoir. In addition, it is possible to manage alarms, historical records and reports, for decision making in failure prevision, maintenance and troubleshooting.