In outdoor photovoltaic power generation systems, photovoltaic brackets bear the heavy responsibility of supporting photovoltaic modules and are always facing the test of severe weather such as strong winds and rainstorms. Once the bracket structure cannot withstand these extreme weather conditions, the photovoltaic modules will lose support, which will not only lead to power generation interruptions, but also may cause serious safety hazards. The carefully designed stable structure makes the photovoltaic bracket like a steel guard rooted in the earth, firmly guarding the safety of the power generation system in the storm.
The stable structural design is first reflected in the foundation of the bracket. The foundation of the photovoltaic bracket is like the foundation of a house, which is the foundation for the stability of the entire structure. Engineers will design a foundation form that is suitable for it according to the geological conditions, climate characteristics and other factors of the installation site. In areas with soft soil, deep pile foundations may be used to drive the foundation of the bracket deep into the ground, like the roots of a big tree, firmly grasping the soil and resisting the upward pull caused by strong winds; in rocky geological areas, anchor foundations will be used to tightly connect the bracket to the rock through high-strength bolts, so that the bracket is firmly "embedded" in the ground to ensure that the overall overturning or displacement will not occur in strong winds and rainstorms.
The mechanical structure design of the bracket is also exquisite. Its frame mostly adopts triangular or polygonal geometric structures, which have natural stability and can effectively disperse and transmit external forces. When strong winds come, the force of the wind is transmitted to the bracket through the photovoltaic modules. The triangular structure bracket will transmit these forces along the sides, so that the entire frame is evenly stressed and avoid local stress concentration leading to structural damage. At the same time, the rod layout of the bracket has also been accurately calculated. The rods in different parts support and restrict each other to form an organic whole, just like the human body's skeletal system. When facing external force impact, it can maintain a stable shape and resist the huge thrust and torque brought by strong winds.
The connection method between the various components of the bracket also plays a key role in stability. In order to ensure that the connection parts do not loosen in strong winds and rainstorms, photovoltaic brackets are usually connected by high-strength connectors, such as bolts, rivets, etc. These connectors are specially treated and have high strength and fatigue resistance. When bolting, anti-loosening nuts and spring washers are used to prevent the bolts from loosening due to vibration; riveting uses strong pressure to tightly combine the components to form a firm connection point. In addition, some advanced photovoltaic brackets also use welding technology to directly fuse the components together, further enhancing the firmness of the connection, so that the entire bracket can maintain structural integrity in bad weather.
In terms of resisting strong winds and rainstorms, photovoltaic brackets also take aerodynamic factors into consideration. Its appearance design minimizes the windward area and reduces the wind resistance coefficient. For example, the beams and columns of the bracket adopt a streamlined design, allowing the wind to flow smoothly through the surface of the bracket, reducing the direct impact of the wind on the bracket. At the same time, the installation angle and spacing between the photovoltaic components and the bracket are also optimized to avoid the formation of vortices under the action of strong winds and reduce the damage of the wind to the components and brackets. This aerodynamic design is like putting on a layer of "windproof coat" for the bracket, which effectively reduces the impact of strong winds on the bracket.
In response to the problems of water accumulation and corrosion that may be caused by heavy rain, the photovoltaic bracket with a stable structural design also has corresponding countermeasures. The base of the bracket will be higher than the ground by a certain height to prevent water from soaking the base and affecting its stability; the surface of the bracket will be treated with anti-corrosion, such as hot-dip galvanizing, spraying anti-corrosion coatings and other processes to form a protective film to resist rain erosion and extend the service life of the bracket. Even in long-term heavy rain weather, these anti-corrosion measures can ensure that the bracket structure is not damaged and maintain its stable performance.
The stable structural design of the photovoltaic bracket is a complex system that comprehensively considers multiple factors. From basic design to mechanical structure, from connection method to aerodynamic optimization, every link has been carefully designed and strictly calculated. These designs work together to enable the photovoltaic bracket to remain stable in severe weather such as strong winds and rainstorms, providing reliable protection for the safe operation of photovoltaic power generation systems, so that the production of clean energy is not affected by the weather, and continuously and stably provides people with green electricity.
