Research on Wind Load Characteristics of Photovoltaic Structures and Optimization of Maximum Power Tracking

Abstract

To increase the development and utilization of solar energy and reduce carbon emissions, the energy sector is the effective path to realize “carbon neutral”. However, solar energy faces practical problems such as low solar energy utilization rate and extreme weather damage. Therefore, to improve the utilization rate of solar energy, based on the principle of dual-axis sun tracking, an intelligent sun tracking system for photovoltaic power generation with wind resistance is proposed. In this paper, based on the fluid-structure coupling theory, the stress analysis of the key parts was carried out, and an optimization model was constructed that took into account both energy generation and wind damage resistance. By adjusting the attitude parameters of the panels, a compromise was reached between the unloading of wind load and the maximization of energy generation, which reduced the damage of wind on the panels and effectively extended the life of the mechanism. Results show that contrast, relevant solutions by developing view, attitude adjustment device, the surface of the initial Angle of 45˚ placed reasonably, and the best inclination angle for tracking changes is concentrated between 0˚ and 20˚ when the initial position is placed. The designed intelligent sun-tracking system achieves the purpose of maximum power generation, this research conclusion for the miniaturization, and automation development of photo-voltaic structure provides a train of thought and a theoretical basis for photovoltaic power maximization.