How does a photovoltaic power station resist storms?
To resist natural disasters, it's crucial to manage four key aspects of a photovoltaic power station: site selection, design, installation, and later operation and maintenance.
Site Selection: Ensure building quality and consider installation factors. Currently, household distributed photovoltaic stations are mainly installed on sloped roofs and flat roofs. Flat roofs include concrete, color steel plate, steel structure, and ball-joint roofs. The installation of the photovoltaic station must consider factors such as location, orientation, angle, load requirements, and the arrangement and spacing of components.
Design: Improve component strength and design appropriate windbreaks. When designing the station, balancing cost and power generation efficiency, one can slightly increase the strength design requirements for components like mounting frames and module clamps. Choosing modules with better wind resistance and designing suitable windbreaks can help. Windbreaks, fixed to the rear vertical columns of the mounting system with several airflow openings, can reduce wind force on modules. This reduces the stress on horizontal beams and the pull-out force on foundations, improving the overall structural safety. However, the rear vertical columns will bear more force, and axial shear forces on the foundation will increase, so foundation stress must be checked.
Installation: Choose sturdy mounting frames. The wind resistance of a photovoltaic power station largely depends on the strength of the mounting frame, which is typically made of materials like aluminum alloy, carbon steel, or stainless steel. The theoretical maximum wind resistance of a photovoltaic frame is 216 km/h.
Operation and Maintenance: Smart and efficient maintenance to raise risk awareness. During normal operation, regular inspections are necessary to ensure the quality of the building supporting the rooftop system. Always check the strength of photovoltaic modules, mounting frames, and the structure of the inverter house to prevent potential problems.
These are some insights on how photovoltaic power stations resist storms, as introduced by Hengyuantai.