Diseño IoT y validación de sistema de medida para generación fotovoltaica

• Angelino dos Santos, Thiago ^[1] ; Gomes de Freitas, Filipe ; Carvalho Gonçalves, Diego Lima ; Fernández-Ramírez, Luis Miguel ^[2]
  1. [1] Federal Institute do Ceará
  2. [2] University of Cadiz
• Localización: Ingenius: Revista de Ciencia y Tecnología, ISSN 1390-650X, ISSN-e 1390-860X, Nº. 28, 2022 (Ejemplar dedicado a: july-december), págs. 44-52
• Idioma: español
• DOI: 10.17163/ings.n28.2022.04
• Títulos paralelos:
  • Design and validation of IoT measurement system for photovoltaic generation
• Enlaces
  • Texto completo (pdf)
• Resumen
  • español

    El uso de sistemas fotovoltaicos (FV) para la generación de electricidad está en constante crecimiento en Brasil. Con la reducción del precio de los módulos FV y la implementación del sistema de compensación de energía eléctrica por parte del distribuidor de energía, el consumidor está invirtiendo en microgeneración FV para reducir la factura de energía. El objetivo del presente artículo es desarrollar un sistema embebido en el contexto de Internet de las cosas (IoT). Tener un sistema de monitoreo IoT aplicado a un sistema FV conectado a la red en una institución educativa ayuda a enseñar conceptos tanto de IoT como de generación FV. El sistema se basa en la placa de desarrollo ESP32 para la adquisición de tensión y corriente continua generada por un sistema FV de 1,35 kWp conectado a la red e instalado en el IFCE. Esta propuesta ofrece una solución educativa de bajo costo, con código abierto y hardware programable, que envían los datos a una base de datos en la nube, lo que permite el acceso remoto desde cualquier parte del mundo. Posteriormente, con una metodología de análisis de datos fue posible validar los valores medidos con el inversor instalado con un error inferior al 1 % para la tensión y la corriente adquiridas durante un día. Con este resultado se concluye que el sistema IoT diseñado puede ser utilizado para la medición en sistemas FV.

  • English

    The use of photovoltaic (PV) systems for electricity generation is constantly growing in Brazil. With the reduction in the price of PV modules and the implementation of the electric power compensation system by the power distributor, the consumer is investing in PV microgeneration to reduce the electricity bill. This article aims to develop an embedded system in the context of the Internet of Things (IoT). Having an IoT monitoring system applied to a grid-connected PV system in an educational institution helps teach concepts such as IoT and PV generation. The system is based on the ESP32 development board for acquiring DC voltage and current generated by a 1.35 kWp PV system connected to the grid and installed at the IFCE. This proposal offers a low-cost educational solution using open source and programmable hardware, which sends the data to a database in the cloud, enabling remote access worldwide. Then, using the data analysis methodology, it was possible to validate the values measured with the inverter installed with an error below 1% for the voltage and current acquired during one day. With this result, it is concluded that the designed IoT system can be used for measurement in PV systems.

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