Aplikasi Superkapasitor Rangkaian Konversi Tegangan ke Arus pada Pemakaian Energi Matahari tanpa Baterai

Abstract

Research has been conducted on the conversion of voltage to current in the use of solar energy without batteries using 40WP solar panels. Solar panels have challenges, namely in overcoming fluctuations in the power they produce. Supercapacitors can be used to overcome the fluctuations that occur in the power generated by solar panels. This research was conducted by testing DC-to-DC converters, RTC (Real Time Clock), INA219 sensors and solar panels. The DC-to DC converter is used to convert the DC voltage from the solar panel into a stable DC voltage using a PWM value which will be controlled using an ATMega328 microcontroller. The INA219 sensor is used to determine the input and output voltage of the solar panel. In this research, the fluctuation generated in the testing of a 40WP solar panel before adding supercapacitors amounted to 0.6659 volts and after adding supercapacitors, the fluctuations decreased to 0.4997 volts.The decrease obtained is about 0.1662 volt. So the use of supercapacitors can significantly reduce the energy fluctuations of solar panels operating without batteries.