Design and Implementation of an Arduino-Based MPPT Solar Charge Controller

An effective solar charge controller's design is essential to maximizing the energy that photovoltaic (PV) systems can capture. This paper describes the design and implementation of an Arduino microcontroller-based Maximum Power Point Tracking (MPPT) charge controller. The purpose of this design is to improve solar energy systems' efficiency and dependability, especially in large-scale or high-current applications. The LM7815 regulator is used by the charge controller to control voltage, and high-power transistors (2SC5200) are used to boost current in order to provide a high load capacity. In order to guarantee optimal efficiency, MPPT controllers dynamically modify the solar panels' operating point to optimize the energy gathering process. The Arduino-based controller is open-source and inexpensive; it can be used in off-grid solar power systems. The technology can manage a maximum current of 60A and charge a battery bank effectively. The research analyzed the circuit design, control algorithms, and experimental findings, and real-world testing is used to assess the system's performance. The result was very impressive; the system proved to be efficient, reliable, and cost-effective, making it a viable solution for off-grid and high-power solar applications. Keywords: MPPT, Arduino, charge controller, solar energy, photovoltaic systems, renewable energy, battery charging, Solar Power, Current Boosting