Micro controller based spherical sun power generator for photovoltaic energy
Author(s): Bekir Cirak
Abstract: In this study, the reflection of the sun rays directly on the spherical lens and its focusing in this lens is examined. Energy collection efficiency of such a spherical surface has been analyzed. Compared with traditional sun fixed panel and sun tracker panel. An experimental device is made to test the solar intake from all directions, including scattering and reflections from spherical lenses. In order to obtain maximum energy from spherical lens, a microcontroller based spherical lens system has been developed that takes into account both solar azimuth and altitude angles. Thus, the sun was monitored on the spherical lens based on real time data. The control unit used in this study was the PIC AT89C51 microprocessor and LM 2596 integrated circuit with real time clock. A program that instantly calculates the sun's movements (azimuth and elevation angles) using the solar geometry throughout the day and year was loaded on the PIC. The angle values calculated by this program were converted into pulse width modulation signals and the spherical lens system was controlled using these signals. As a result of the experiments, it was observed that more energy was obtained by using a microcontroller-based spherical lens system. In addition, a low cost and easily programmed control system has been obtained that monitors the sun in real time, ensures stable operation of the system and consumes very little energy.