Abstract
Maximum Power Point Tracker (MPPT) has been constructed which consist of booster Direct Current to Direct Current (DC to DC) converter, triggered by Pulse Width Modulation (PWM) given by Arduino board ATMega 328 microcontroller and MOSFET as a switch. The maximum power resulted from Photovoltaic Generator (PVG) which was illuminated with halogen lamp was tracked using Perturb and Observe (P&O) algorithm which was written in ATMega 328. The execution of P & O algorithm was based on voltage and current measurements using voltage and ACS 712 current sensors and then the calculation of power value was used to decide the execution direction of P&O algorithm to track maximum power value. The measurement results of current, voltage and power before and after tracking was tabulated in Excell Table and plotted in graphical form using Parallax Data Acquisition (PLX-DAQ) software. The tracking output voltage was achieved higher than input voltage value and nearly constant, although input voltage values was slightly varying. The implementation of MPPT in battery charging process gives that charging time of 8 hours was needed without using MPPT and charging time of 3 hours and 20 minutes was needed after using MPPT.
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