Design and Implementation of Adaptive Switched-Capacitor DC-DC Converter for PV-Fed Variable Step Value-Based P&O MPPT Controller

Based on the current literature survey, the Solar Photovoltaic (SPV) modules are playing the principal role in the current standalone power distribution systems because their merits are optimal atmospheric pollution, less noise pollution, freely available in nature, mostly suitable for all rural areas, and creating more job opportunities. However, the drawback of this system is less functioning efficiency and nonlinear power availability. So, the advanced Perturb & Observe (P&O) concept is used in this work to overcome the nonlinear behavior of the SPV system. The features of this Maximum Power Point Tracking (MPPT) concept are fast MPP identifying speed, quick dynamic response, and few oscillations across the functioning point of the SPV system. Here, the adjustable step value is utilized in this proposed powerpoint identifying controller. Due to that the convergence speed of the system is enhanced. In the second stage, the Switched-Capacitor Boost Converter (SCBC) is interfaced in the middle of the SPV and resistive network to optimize the SPV power generation cost. The merits of this proposed DC-DC converter are less ripple in the SPV output voltage, good voltage conversion ratio of the system, plus fast switching speed. The overall system is investigated by the use of the MATLAB tool.