Hello, the maintenance of photovoltaic systems is generally divided into daily maintenance and breakdown maintenance.
Fault maintenance mainly involves the manufacturer sending personnel to provide on-site service and maintenance after a fault occurs. Generally, the best power plant brands will provide after-sales operation and maintenance services for the power plant. I don't worry too much about that.
On the other hand, there is the daily maintenance of the power plant, such as regular cleaning of the components and timely removal of dust and dead leaves from the components. Ensure efficient and normal operation of the energy production of the components.
On the other hand, after winter and snowy days, if there is a thick accumulation of snow on the components, you must ensure that it is removed regularly. Don't train himhave cracks and crushing of components.
At the same time, it is best to make an appointment with the manufacturer to conduct a comprehensive "physical examination" of the photovoltaic power plant once a year, conduct timely testing and prepare the power plant most complete electric. operation and maintenance plan. Only in this way can the plant produce electricity for a long time and users' income can be stable.
Once the photovoltaic plant is installed, how should it be maintained?
For pure system construction, water photovoltaic systems are mainly water pile and water floating platform type.
The main difficulty of foundation construction of water pile photovoltaic systems is increased to some extent (compared to pumping water to the piles and then attaching the support)
2. AvaAdvantages and disadvantages of floating water photovoltaic system:
1.Main advantages:
① Economy. money: the establishment of the water surface occupies the land. Reduction of resources and taxation fees
② Increase power generation: The cooling effect of water photovoltaic modules suppresses the increase in surface temperature of the module to achieve power generation higher according to the experimental comparison of. This Hyogo Prefecture type water photovoltaic power plant, the power output of the panel due to the cooling effect of the water surface increases by about 14%
③ Reduces the evaporation and algae reproduction: solar panels covering the water surface theoretically reduce the evaporation of the water surface and inhibit the reproduction of algae, which is beneficial for the protection of water resources
④ Operation and maintenance are convenient : photovoltaic plants are established. Water reduces dust contamination of components and facilitates cleaning of components, making components inaccessible to people and objects, effectively preventing damage to components by people and objects
⑤ Tourist benefits : The photovoltaic modules are carefully arranged on the vast water surface, making it a unique scenic spot and a scenic spot in the region Brings tourism benefits
⑥Avoid shading of the modules: it is wider than the surface of the land and water, effectively avoiding mountains, woods and other modules from blocking the solar irradiation area, and the light is evenly spaced
< p>⑦Reduce the cost of tracking system: module angle, spacing makes it easier to install and operate the solar tracking system. Each panel must be installed with a two-axis tracking system to rreduce the cost of the tracking system⑧Cost savings: component foundation supports are required to save the cost of foundation supports
⑨Consumer convenience: built near villages and towns, near water bodies , it can reduce the difficulties of grid connection, power rationing and other factors to improve efficiency
2. There are some disadvantages:
① High requirements for floating equipment: Floating water photovoltaics requires floating equipment to support the photovoltaic panels. the floating frame has high requirements for corrosion resistance, low density, frost heave resistance, wind and wave resistance, service life and bearing capacity.
② High site selection requirements: The site of the floating water photovoltaic farm should be located in waters with a large areae, stable runoff, low wind speed, light conditions, significant water level changes, severe capillary conditions, large-scale navigation and non-state sensitive areas
< p>③Determining factors: wind, water level, ice and other factors have a greater impact. It is necessary to monitor the water quality of photovoltaic modules, aquatic fish, plants, etc.④Construction difficulty: Construction projects are necessary. It is difficult to use heavy machinery to carry out high-efficiency construction processes, requiring longer construction periods and requiring diving or boat navigation operations to account for balance and safety performance from damage to swimming pools, dams and other facilities.
What should you pay attention to when cleaning photo panelsVoltaic?
Generally speaking, its maintenance does not require a lot of energy and financial resources. When cleaning the solar power generation system, you should pay attention to the following: Accumulation of dust or dirt on the system. The surface area of the components will reduce energy production. Regular cleaning should be carried out as much as possible (the specific interval depends on the conditions of the installation location). Use a soft cloth when cleaning, dry or damp. It is not recommended to use water containing minerals for cleaning to avoid leaving dirt on the glass surface; Under no circumstances should materials with rough surfaces be used for cleaning components. To reduce potential risks, it is recommended to clean components in water. early in the morning or when the light is not strong and the temperature of the componentsants is low. Clean photovoltaic modules in the evening, especially in areas with higher temperatures; do not attempt to clean photovoltaic modules with broken glass or exposed wires. Cables and connectors can be inspected every six months or so: check the junction box sealant to make sure there are no cracks or gaps; Check photovoltaic modules for signs of aging, including possible rodent damage, weathering, and whether all connectors are in good condition. connected waterproof and free from corrosion. Check that the components are properly grounded.
Do not dry clothes or other objects on the photovoltaic modules or on the south (front) side of the panel to avoid danger or fire. Additionally, shadow blocking will affect power generation and reduce your own power output.quoted. income. Air switch, then turn off the breaker; clean the dirt on the surface of photovoltaic modules in time if it snows, clean the heavy snow covering the photovoltaic modules in time after snowing, so as to increase power generation and. increase revenues from electricity production. Please supervise children at home and do not play near the photovoltaic field to avoid danger. Do not knock on steel frames, photovoltaic modules, equipment and other power generation facilities, and it is prohibited to drill holes in the glass and module frames to avoid damage to the power generation system. electricity, affect electricity production and reduce your own electricity production. income. Do not throw or spill toxic, harmful or corrosive objects around components and supports.
?Develop a cleaning schedulereasonable ge based on overall local conditions to ensure a scientific and effective cycle cleaning plan to meet power generation efficiency requirements.
2. Cleaning must be clean and thorough. If dead corners are left, this can lead to serious consequences such as a “hot spot effect”.
Under normal lighting conditions, battery panels in corners that have not been cleaned will change from power producing units to power consuming units. Shaded photovoltaic cells will become load resistors that do not generate electricity, consuming energy. power generated by the connected batteries, i.e. heat, which is the hot spot effect. This process will worsen the aging of battery panels, reduce power, and in severe cases can cause fires.
3. Use a special cleaning fluidcial. Some users use ordinary tap water or well water to wash and clean the battery panels. There are many impurities in the water which will adhere to the surface of the battery module glass plate , thereby reducing the efficiency of solar energy production. Experiments showed that using tap water to wash battery panels would reduce power generation efficiency by more than 1.8% compared to using a special cleaning fluid .
4. Choose the appropriate cleaning tools and methods to increase the life of the battery board. The surface of the solar cells is made of high-strength tempered glass, which also suffers from wear. The lifespan of solar panels is more than 20 years. To ensure normal electricity production, they generally need to be cleaned once or twice a year. month. If the methods and tools usedlized are inappropriate, it is easy to cause wear of the battery surface, affecting the power generation capacity and service life of the battery panel.
5. Solve the problem of cleaning solar photovoltaic power plants in winter and snow season. Battery components cannot be cleaned with water during winter and snow season. In some seasons there is a problem with condensation and freezing of battery panels. Equipment with snow removal, snow removal, ice melting and waterless cleaning functions must be used. .