Wind protection maintenance of solar panels in strong wind environments requires full-process control from design, installation, daily inspection to emergency response. The following are the specific points to note:
First, preventive measures in advance
Site selection and design optimization
The site selection should avoid areas prone to strong winds such as wind outlets and valleys. If it is impossible to avoid them, the local wind load conditions should be fully considered during the design stage, and support structures and component installation methods with strong wind resistance should be adopted.
The array arrangement of photovoltaic systems should fully consider the wind-resistant air vents, and the inclination Angle of the components should be reasonably designed to reduce wind resistance.
To ensure the quality of the buildings on which photovoltaic systems rely, the design mainly considers the supporting capacity and the prevention of risks such as strong winds and earthquakes.
Component and equipment selection
Select photovoltaic modules and equipment with reliable quality and good wind resistance. Some component manufacturers incorporate wind load resistance into their product design standards, such as using thickened frames and high-strength glass, to effectively resist damage caused by strong winds.
Select sturdy photovoltaic brackets and strictly follow the wind and earthquake resistance parameters of coastal buildings for design. Choose galvanized brackets with strong pressure resistance.
Enhance the awareness of risk prevention
Correctly understand the role and value of insurance, purchase diversified photovoltaic insurance, and minimize losses as much as possible.
Second, daily inspection and maintenance
Regular comprehensive inspection
Regularly conduct a comprehensive inspection of the photovoltaic system to check if the welds of the brackets are cracked, if the bolts are rusted or loose, and promptly clean the dust, fallen leaves and other debris on the surface of the photovoltaic panels to prevent water accumulation on the panels.
Carefully check whether the junction box and cables are aged or damaged to avoid electric leakage accidents caused by line problems in strong wind weather.
Strengthen the inspection of photovoltaic power stations, and promptly identify and handle issues such as loosening and wear of components and brackets. Check whether the screw fasteners and fasteners are firm, whether there is any detachment at the welding points, and whether the middle and edge pressure blocks of the components are tight.
Optimize the drainage system
Ensure that the drainage system in the photovoltaic panel installation area is unobstructed. Drainage channels can be reasonably set up under the support to quickly lead the accumulated water to the drainage point, preventing the water in low-lying areas from soaking the foundation for a long time and corroding the support.
Third, measures before strong winds arrive
Fastening and reinforcement
Before the strong wind arrives, carry out comprehensive tightening and reinforcement work on the photovoltaic power station. The component brackets can be bound with iron wire, ropes, etc. to increase their stability.
For power stations with insufficient counterweight, sandbags and other materials can be used to increase the counterweight to resist the force of strong winds.
Inspect the electrical equipment
Check the status of each electrical equipment in the photovoltaic power station and the insulation and sealing performance. If the sealing condition is poor, it needs to be dealt with in a timely manner.
For key electrical nodes, such as DC and AC connections, special attention should be paid to inspection to ensure that no safety accidents are caused by loose circuits or other issues in strong wind weather.
Turn off the DC switch of the inverter and the circuit breaker of the AC distribution box combiner box to prevent electrical faults caused by strong winds.
Clean up the surrounding environment
Clear the debris around the photovoltaic power station to prevent it from being blown up by the wind, which could cause damage to the photovoltaic power station and affect its normal operation.
Pay attention to meteorological information
Pay close attention to the weather forecasts and disaster warning information released by the meteorological department, and keep abreast of the intensity, path and expected arrival time of strong winds in a timely manner. Based on meteorological information, make emergency preparations in advance, such as organizing personnel and preparing emergency supplies.
Fourth, measures when strong winds occur
Personnel safety guarantee
When arranging personnel to stand guard at the power station during strong wind weather, the duty personnel should ensure their own safety and try to avoid staying outdoors for a long time. They can also monitor the situation of the power station in combination with the power station’s video surveillance system. In case of emergency, actions should be taken promptly in accordance with the pre-formulated personnel evacuation and withdrawal plan.
Equipment operation monitoring
Maintain the operation monitoring of photovoltaic power station equipment, and closely follow the various parameters and operating status of the equipment. If any abnormal conditions of the equipment are found, such as sudden changes in component voltage and current, the relevant data should be recorded in a timely manner, and a detailed inspection and analysis should be conducted after the storm.
Fifth, measures after strong winds
Comprehensive inspection
When the strong wind passes and the climate and environmental conditions meet the safety requirements, a comprehensive inspection of the photovoltaic power station should be conducted on site in a timely manner. Check whether the components are damaged or have hidden cracks, whether the brackets are deformed or loose, and whether the electrical equipment is damaged, etc.
Cleaning and repair
Clear the debris and damaged components in the power station, and repair or replace the damaged components, brackets, etc. Meanwhile, debug and maintain the electrical equipment affected by the storm to ensure its normal operation.
For problems such as drainage system blockages caused by strong winds, timely unblocking and repair should be carried out to prevent water accumulation in the future.
Summary and Improvement
Summarize and analyze the impact of the current strong wind extreme weather on photovoltaic power stations, and identify the existing problems and deficiencies. In response to these problems, corresponding improvement measures should be formulated, such as optimizing equipment selection and perfecting emergency plans, to enhance the ability of photovoltaic power stations to cope with extreme weather.
