CONTROLADOR DE FATOR DE POTÊNCIA UTILIZANDO ARDUINO

Abstract

Due to the electric power quality, this work has the objective of creating an Arduino based system to automatically control the inductive power factor and consequently evaluate its performance compared to the systems already consolidated in the market. For the development of the project, a study was carried out on the Electricity Distribution Procedure in the National Electric System (PRODIST) module 8, concepts about electricity, transformers, inductive loads, power factor, power factor correction and Arduino. For the validation of the system, the ION 7650 quality analyzer from Schneider was used, where the values read by the ION 7650 were used as reference. In addition to the validation, the system was subjected to further tests, always accompanied by the ION 7650. In all the reading tests, the system errors were calculated and arranged in frames, where the biggest error of the system was of 7.05 % and the lowest of 0 %. The system was also submitted to a power factor correction test, in which capacitors were inserted into the system so that it could correct the inductive load. Although the system was able to correct the power factor, it had a scenario of instability in the switching of capacitors in the power grid. Due to the instability presented by the system and the same does not read harmonics, it remains as a future proposal the optimization of the management of the capacitor bank and the reading of harmonics.