Photovoltaics Maximum Power Tracking by the Hybrid Perturb-Observe and Sliding Mode Control Strategies

Abstract

To increase photovoltaic PV power, the point of maximum power, MPPT, must be tracked effectively. The oscillation around the operating point is the main drawback of MPPT, obtaining techniques. This study suggests combining the Perturb and Observe, PO, and Sliding Mode Control, SMC, strategies to reduce this problem and deal with the nonlinearities of the solar panels under different climate situations. The SMC creates a sliding surface that establishes the operational point and increases the stability of the PO. The gate of a DC-DC converter quickly reaches this defined surface, and the duty cycle adjustment ensures maximum power in all conditions. This study utilized MATLAB/Simulink to design and analyze this combined control system. The outcomes supported the PO and SMC strategy’s reliability and successful operation under various environmental circumstances.