HILL CLIMBING MPPT PERFORMANCE ANALYSIS FOR PHOTOVOLTAIC SYSTEM UNDER PARTIAL SHADING

Abstract

The HC approach is developed in this work with the intention of tracking maximum power from the PV array. Multiple local maximum power points are displayed on the power–voltage characteristic of photovoltaic (PV) arrays when all of the modules are not receiving uniform solar irradiation, which is another way of saying that they are operating under partial shading conditions (PSCs). Under conditions of consistent sun irradiation, it has been demonstrated that conventional maximum power point tracking (MPPT) approaches are effective. On the other hand, it is possible that these may miss the worldwide peak caused by PSCs. In this thesis, a new approach for maximum power point tracking (MPPT) of photovoltaic arrays is proposed for use under both PSCs and uniform circumstances. The proposed method locates all of the regional maximum power locations by doing an analysis of the sun irradiance pattern and then applying the wellknown Hill Climbing method. Simulations run in a MATLAB/SIMULINK environment are used to assess how well the suggested approach performs.