https://repositorio.ifg.edu.br/handle/prefix/92 2026-09-20T17:15:36Z 2026-09-20T17:15:36Z Assis, João Arthur de Oliveira https://repositorio.ifg.edu.br/handle/prefix/2807 2026-08-26T13:15:01Z 2025-08-29T00:00:00Z

Título: Estudo de desempenho e aplicação prática de uma planta de energia eólica em ambiente controlado Autor(es): Assis, João Arthur de Oliveira Primeiro Orientador: Bernardeli, Victor Régis Abstract: This final course project analyzes the performance and practical application of a wind energy plant in a controlled environment, using an experimental bench that simulates real conditions of energy generation from wind. Wind energy is highlighted as a promising renewable source for the global energy transition, contributing to the reduction of greenhouse gas emissions and meeting the growing demand for electricity in a sustainable way. The controlled environment approach allows precise adjustment of variables such as wind speed, blade pitch angle, applied load, and integration with storage systems like batteries, facilitating the collection of reliable data for project optimization. The study addresses the history of wind energy, from ancient mills to modern turbines, and emphasizes its relevance in the Brazilian context, especially in the Northeast, where wind potential is high, despite challenges such as local adaptation and technical training. Experimental benches, such as those developed by De Lorenzo do Brasil, are explored for small-scale testing, reducing risks and costs before field implementations. In addition, the integration with batteries is discussed as a way to mitigate the intermittency of wind generation, promoting hybrid systems for applications in isolated communities or urban microgeneration. The results aim to contribute to the scientific literature, supporting innovations in renewable energy and strengthening the national technological infrastructure. Editor: Insitituto Federal de Educação, Ciência e Tecnologia de Goiás Tipo: Trabalho de Conclusão de Curso

2025-08-29T00:00:00Z Teixeira, Felipe de Castro https://repositorio.ifg.edu.br/handle/prefix/2806 2026-08-26T13:14:05Z 2025-08-29T00:00:00Z

Título: Análise experimental de microgeração eólica com conversão CC-CA e diferentes condições de carga Autor(es): Teixeira, Felipe de Castro Primeiro Orientador: Bernardeli, Victor Régis Abstract: This paper presents an experimental analysis of the performance of a wind microgeneration system on a teaching bench, operating under different load and energy conversion conditions. Tests were carried out in direct current (DC) with resistive loads and in alternating current (AC), using DC-AC conversion to power a three-phase motor with star and delta starts. The system used consists of a wind turbine, battery bank, converters, and control modules, allowing direct measurements through the Human-Machine Interface (HMI). The variables monitored include voltage, current, power, and rotation, enabling performance comparisons between different configurations. The results indicated that, in direct current (DC) mode with resistive loads, load and speed variation significantly impacts the power delivered and operational stability. In DC-AC conversion, the delta configuration showed higher power in direct current (DC) consumption, while the star start offered more stable operation and lower electrical demand. The tests performed contribute to the understanding of the behavior of microgeneration wind systems, helping to optimize designs for off-grid applications. Editor: Insitituto Federal de Educação, Ciência e Tecnologia de Goiás Tipo: Trabalho de Conclusão de Curso

2025-08-29T00:00:00Z Silva, Gustavo Dourado https://repositorio.ifg.edu.br/handle/prefix/2798 2026-08-26T11:35:44Z 2026-02-10T00:00:00Z

Título: Arquitetura de controle para limitação de exportação de potência em inversores fotovoltaicos utilizando automação aberta em microrredes Autor(es): Silva, Gustavo Dourado Primeiro Orientador: Viajante, Ghunter Paulo Abstract: This work presents the development and experimental validation of an active power control architecture for photovoltaic microgrids, aiming to implement Grid Zero (zero export) operation in grid-tied inverters. The initial motivation is based on the need to adapt photovoltaic systems in facilities with maximum energy export limits due to the saturation of the local electrical infrastructure capacity, a characteristic scenario of the IFG Itumbiara Campus. To solve this problem, a control loop was developed based on an open-source automation architecture orchestrated in Docker containers: Node-RED acted as a communication gateway (converting Modbus TCP to MQTT), while Home Assistant executed the control logic and the operation interface. Tests performed on the microgrid, composed of Fronius and Victron inverters, demonstrated that the system was able to raise the self-consumption rate to levels above 94%, eliminating the continuous export of energy. The results validate the proposed architecture as a low-cost and replicable solution for efficient energy management under injection constraints. Editor: Insitituto Federal de Educação, Ciência e Tecnologia de Goiás Tipo: Trabalho de Conclusão de Curso

2026-02-10T00:00:00Z Rodrigues, Pedro Henrique Silva https://repositorio.ifg.edu.br/handle/prefix/2797 2026-08-26T11:34:54Z 2026-07-07T00:00:00Z

Título: Sistema de coleta de água proveniente de condicionadores de ar para suprimento de planta didática industrial Autor(es): Rodrigues, Pedro Henrique Silva Primeiro Orientador: Vicente, Bruno Gabriel Gustavo Leonardo Zambolini Abstract: This work presents the development of an automated system for the collection, storage, monitoring, and control of condensed water from air conditioning units, aimed at its use in the periodic renewal of water in an industrial didactic plant. The proposal arose from the observation of damage caused by the continuous use of treated tap water in the didactic plant, including corrosion in metallic connections, scaling on sensors, and component failure, motivating the replacement with a fluid of lower chemical aggressiveness. The system was developed using an ESP32 microcontroller, an AJ-SR04T ultrasonic sensor, a DS18B20 temperature sensor, a YF-S201 flow sensor, float-type level sensors, a peripheral pump, solenoid valves, and a relay module. The embedded software performs continuous reading of variables, volumetric dosage control, critical level detection, flow failure verification, and data updates on a 20×4 LCD display and on the Blynk IoT platform, enabling local operation and real-time remote supervision. The average total condensed water production flow rate measured was 4.82 L/h, with an estimated monthly production of 1,272.48 L. Comparative physicochemical analysis demonstrated that the condensed water presented 53% lower electrical conductivity, a complete absence of residual chlorine, and a silica concentration 99.5% lower than that of tap water. The system demonstrated technical feasibility for the reuse of condensed water, contributing to the reduction of water waste, the preservation of plant components, and the practical application of industrial automation, electronic instrumentation, and Internet of Things concepts in an academic environment. Editor: Insitituto Federal de Educação, Ciência e Tecnologia de Goiás Tipo: Trabalho de Conclusão de Curso

2026-07-07T00:00:00Z