Monitoramento de energia elétrica de baixo custo em sistemas monofásicos

Abstract

This work aims to develop a low-cost electrical energy meter using accessible devices, seeking to determine whether the application of the meter is useful and fulfills the purpose of measuring the main electrical variables in a household. To collect the necessary data, a case study was carried out in a residence where the prototype was installed for continuous monitoring of electrical consumption, allowing the calculations to be performed and the desired information to be obtained. A questionnaire was also conducted with a group of people from the region to understand the current situation regarding energy control in their homes. The results show that the prototype operates effectively, with the sensor capable of accurately reading the electrical current. The proposed algorithm successfully performs the required calculations, and the web server is capable of transmitting the information accurately and in real time. Therefore, despite its limitations, this work is able to correctly monitor the electrical network of a residence and facilitate user visualization.