Control and monitoring of a Flyback DC-DC converter for photovoltaic applications using embedded IoT system
Keywords:DC-DC Flyback converter, ESP32 microcontroller, Internet of Things (IoT), Monitoring and control, Photovoltaic generation
Photovoltaic (PV) generation is becoming a necessity worldwide, considering the production of energy in a sustainable way. Hence, the implementation of devices and applications for conditioning the energy generated by the PV modules has been extended, among which the development of DC-DC converters stands out. One of the main roles of these converters is to keep the output voltage constant, given the variations in solar radiation, ensuring control of the energy produced. In addition, given the need to verify the conversion efficiency and the power produced, the implementation of electronic circuits that promote the control and monitoring of the system is relevant. One of the resources that facilitates such implementation is the use of microcontrollers that have communication with the Internet. Lately one of the platforms that has gained prominence in applications employing the Internet of Things (IoT) concept, is the ESP32 microcontroller. In this sense, the development of a DC-DC Flyback converter integrating the IoT concept is discussed in this work, implementing the monitoring and control of the energy generated from the PV system through the ESP32 microcontroller. The results showed a setup capable of being monitored online and in real time. The voltage control promotes the regulation of the output voltage and the IoT control allows modifying the converter output voltage, according to the user’s need.