When conducting regular inspections of photovoltaic power generation systems, it is found that the 100W flexible solar panel, due to frequent outdoor use and prolonged exposure to wind and sun, has accumulated a large amount of dust on its surface. If these dusts are not cleaned up in time, It may block and affect the normal operation of the 100W flexible solar panel. In the long run, it will also accelerate the aging of the solar panel and reduce the output power. Now, let's have the editor answer for you how to clean the dust of the 100W flexible solar panel.
I. Cleaning Methods for 100W flexible solar panel
1. Manual cleaning
Manual cleaning is a very primitive cleaning method for 100W flexible solar panels, which is completely accomplished by human power. This cleaning method has low work efficiency, a long cleaning cycle, high labor costs, and poses personal safety risks. Moreover, in northern winters, it is impossible to work. Therefore, large-scale photovoltaic power stations rarely adopt manual scrubbing.
Manual dry cleaning
Manual dry cleaning involves using long-handled velvet mops in combination with specialized dust cleaning agents. The oil-based electrostatic vacuum cleaner used mainly operates on the principle of electrostatic adsorption and has the function of adsorbing dust and sand particles. It can enhance the dust and dirt removal ability of the cleaning tools and effectively prevent dust and sand particles from flying during cleaning. Due to the complete reliance on human power, there are problems such as a large amount of surface residues and uneven force on components, which cause deformation and hidden cracks. Compressed air purging is a process that uses a dedicated device to blow out compressed air to remove dust from the surface of components, and it is used in areas with scarce water resources. This method is inefficient and has the problem of dust rubbing against the components at high speed. Currently, it is rarely used in power stations.
(2) Manual water washing
Manual water washing involves spraying water onto the surface of photovoltaic modules through nozzles connected to water trucks (or water pipes) to achieve the purpose of cleaning. The pressure is generally no more than 0.4MPa. Excessive water pressure can cause hidden cracks in the 100W flexible solar panel, leading to large-scale short circuits and reducing the power generation efficiency. This cleaning method is superior to manual dry cleaning and has a higher cleaning efficiency, but it uses a larger amount of water. In addition, after the 100W flexible solar panel is naturally air-dried, water stains will form on the surface, creating micro-shadows that obstruct and affect the power generation efficiency. The ice layer produced by the use of high-pressure water guns in winter can seriously weaken the optical effect of components, especially in solar power plants located in the north.
2. Semi-automatic cleaning equipment
The modification is mainly based on engineering vehicles. The equipment has a large power and relatively high efficiency. The cleaning work has good pressure consistency for the 100W flexible solar panel and will not cause uneven pressure on the components, resulting in hidden cracks of the components. Moreover, the cleaning can adopt two modes: sweeping and water washing. This method has a relatively low dependence on water resources, but it has strict requirements for the height, width of the photovoltaic module array and the road conditions between the arrays. It cannot meet the application needs of all large-scale photovoltaic power stations. In China, many enterprises produce, sell and lease such equipment.
3. Automatic cleaning
The automatic cleaning method is to install the cleaning device on the photovoltaic module array, and realize the automatic cleaning of the 100W flexible solar panel by the device through the rotation of the motor controlled by the program. This cleaning method is costly and complex in design. It is mostly used in research and development and testing, and is rarely officially applied to large-scale photovoltaic power stations.
4. Intelligent cleaning robot
There are already intelligent cleaning robots in China. The method is to install one cleaning robot on each row of photovoltaic modules in the power station, which can automatically clean regularly without human intervention, thus saving labor costs. For photovoltaic power stations with flat terrain, intelligent cleaning robots can be adopted. Compared with traditional cleaning methods, they are self-powered and equipped with energy storage, eliminating the need for external power supply. They are water-free, energy-saving and environmentally friendly, and can save water. The operation frequency can be freely set. Regular cleaning is carried out according to the site environment. The cleaning force is uniform and will not cause hidden cracks in the 100W flexible solar panel. It can work at night.
Ii. Cleaning Precautions for 100W flexible solar panel
Before cleaning, the inverter needs to be turned off first to stop the photovoltaic system from working. It is advisable to carry out the cleaning in the morning.
2. Avoid subjecting the surface of the 100W flexible solar panel to heavy pressure. Do not step on the photovoltaic panel or place heavy objects on it. Because the silicon wafer in the middle may cause hidden cracks due to gravity.
3. Avoid cleaning during peak power generation hours. The midday in summer is the time when photovoltaic systems operate efficiently. As photovoltaic panels are constantly exposed to sunlight, their surface temperatures are very high. If they are suddenly wiped with a damp cloth, due to the principle of thermal expansion and contraction, the internal materials may undergo irreversible changes or the 100W flexible solar panel may be damaged.
4. Avoid wiping the glass on the surface of the 100W flexible solar panel with sharp objects. Sharp objects can damage the surface coating and affect the diffusion of light. It affects the power generation efficiency.
The above is the answer to how to clean the dust of the 100W flexible solar panel. Different cleaning methods consume different amounts of time and money. One point to note is that during the cleaning process, be careful not to damage the 100W flexible solar panel.
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