A Modified Perturb and Observe MPPT for a Fast and Accurate Tracking of MPP Under Varying Weather Conditions

Photovoltaic (PV) systems provide a reliable green energy solution by improving maximum power point tracking (MPPT) methods to achieve under various weather conditions. Among MPPT algorithms, the perturbation and observation (P&O) algorithm is widely used in PV due its simple implementation. However, has limitations terms of convergence speed, steady-state oscillation, drift problem during sudden irradiance variations. This paper proposes modified P&O for optimal different A new strategy control duty cycle step size, which provides faster convergence. The detects attainment oscillation way then stops process. eliminates around MPP. Moreover, can detect change solar immediately solve without additional sensors. proposed method was simulated using MATLAB/Simulink validated experimentally irradiances utilizing boost converter with 0.05 s sampling time. experimental results showed that could be successfully implemented, an average time 0.5 efficiency 99.8%. superior standard algorithm, 50% improvement In this study, real-time test conducted verify effectiveness temperatures.