The northern region of China has gradually entered autumn, and solar power stations have ushered in the best power generation season. However, the falling leaves and dust that come with autumn have brought some challenges to the operation and maintenance of photovoltaic power plants. If not dealt with timely , it will reduce the power generation efficiency of the power plant and even have a bad impact on system safety.
These impacts are mainly manifested in below
1. Reduce power generation efficiency：
Fallen leaves and dust can fall on the surface of solar modules, blocking sunlight and affecting power generation efficiency. In addition, the accumulation of fallen leaves and dust on the surface of the module can hinder the dissipation of heat, leading to an increase in local temperature of the module and further reducing power generation efficiency.
2. Increase security risks：
Fallen leaves and dust may enter the interior of electrical equipment, such as inverters, junction boxes of components, connectors, etc., corroding or damaging electrical components, which may lead to poor contact, short circuits, and other faults of these components. In addition, prolonged contact between dust and components may also cause a decrease in insulation performance, increase the risk of electric shock, and pose a threat to the safety of on-site personnel.
3. Increase the difficulty of operation and maintenance：
Dust and fallen leaves can increase the likelihood of system failures, so component cleaning and operation and maintenance work in autumn power plants is particularly important. Once the system malfunctions, operation and maintenance personnel may need to troubleshoot hundreds or thousands of components in the system, which undoubtedly increases the difficulty of power plant operation and maintenance.
So, what are the operation and maintenance methods for photovoltaic power plants in autumn?
Firstly, before operation and maintenance, disconnect the power supply in advance to ensure personnel safety. The residual leaves, dust, etc. on the surface of the component should be cleaned timely ; The maintenance of the inverter mainly includes checking whether the wiring is firm, whether the equipment is damaged, cleaning of debris, and heat dissipation; For the maintenance of the bracket, it is necessary to pay attention to checking whether the connection between the bolts and the bracket is loose, and whether the anti-corrosion coating on the surface of the bracket is cracked or peeled off; The maintenance of cables mainly focuses on preventing cable damage, aging, and loose and detached wiring. In addition, we also need to do a good job in cleaning debris around the power station and its equipment, as well as ventilation and heat dissipation, in order to comprehensively ensure the safe operation of the system.
Post time: Sep-27-2023