Control System Design and MPPT tracking of PV panels under different conditions

Abstract

Recently, renewable energy sources have grown as the population to cover all their daily needs. One of these environmentally friendly sources is photovoltaic solar cells, whose I-V and P-V depend on the weather conditions. The challenge is making this source produce or work at the maximum power point (MPP). Although some previous studies have discussed this problem, some of their results have poverty in performance. Therefore, a new method is introduced in this project to track the MPP under two scenarios, one by fixing the temperature and irradiance changes, and the second one is the opposite. The proposed model is implemented using MATLAB Simulink. In addition, the DC-DC boost converter and (p&o) algorithm with two PI controllers are used to control the solar system. Before that, the system's controllability, observability, and stability are satisfied appropriately. The results show that the proposed system did very well. The chosen design's performance, speed, efficiency, and oscillation are significantly better when compared with the previous method mentioned in the literature. Although this project can be installed and applied in reality, partial shading is not considered because it needs a complex control design to achieve the desired goals.