Hybrid Controller with Voltage Hysteresis Control for Photovoltaic Systems with IoT Based Monitoring

Goyzueta C.A.R.; Flores M.L.C.; Estaño E.R.A. · Proceedings of the 2025 IEEE 32nd International Conference on Electronics, Electrical Engineering and Computing, INTERCON 2025 (2025) · DOI: 10.1109/intercon67304.2025.11244696

Resumen

This research proposes a hybrid controller with voltage hysteresis control for photovoltaic systems, the controller is based on the ATmega328P microcontroller, power devices, electrical and electronic components, making it easy to implement. The controller decides between using electrical power from the electrical grid and the electrical power from the photovoltaic system, this makes the function of hybrid controller. The controller uses voltage hysteresis that refers to the difference in voltage levels that cause a circuit to change state depending on whether the voltage is rising or falling, this means that a circuit's output does not instantly change to the input voltage, hysteresis helps prevent rapid and unwanted changes in a circuit's output, especially in the presence of noise or voltage fluctuations. Additionally, the controller has an Internet of Things monitoring system designed and manufactured by the authors of this same research. The controller works with a conventional photovoltaic system, using a photovoltaic panel, a battery and a load, but use voltage hysteresis control. Panel voltage depends on atmospheric conditions such as cloud cover and temperature. The monitoring system has taken data to evaluate the controller's performance and results that even with intense fluctuations in panel voltage, the battery voltage remains stable, as does the load voltage. This demonstrates satisfactory system performance.

Instituciones: Universidad Nacional del Altiplano