Maximum Power Point Tracking Solar Charge Controller

Abstract

Due to rising energy demands and the depletion of non-renewable resources, solar energy has become increasingly popular in recent years. Due to environmental circumstances such as sun irradiation and temperature that might affect solar energy production, it is impossible to predict how much power will be generated. Consequently, to serve as a standby power source, a battery is permanently connected between the load and the solar panel. Because solar cells generate higher power when exposed to more sunlight, the risk of battery damage increases as sunlight increases. MPPT is a method for maximising the output of a photovoltaic module while minimising the risk of overcharging the battery. MPPT charge controllers are designed to preserve and monitor the battery. Boundary limitations and a dynamic perturbation step-size are employed to reduce the oscillation's impact on the MPP. Ropp, sinusoidal, and ramp irradiance tests are used to evaluate the proposed P&O against the conventional and adaptive P&O. A 10-hour irradiance and temperature profile is used to evaluate the findings. A buck-boost converter is utilised to accomplish the MPPT efficiency (MPPT) calculation, which serves as a benchmark for the procedure. On average, all tests showed an increase of two percentage points in MPPT for the proposed P&O system. It also doesn't need any new hardware; just a few lines of extra software code must be added to the regular P&O MPPT control