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The northern region of China has graduallyentered autumn, and solar power stations have ushered in the best powergeneration season. However, the falling leaves and dust that come with autumnhave brought some challenges to the operation and maintenance of photovoltaicpower plants. If not dealt with timely , it will reduce the power generationefficiency of the power plant and even have a bad impact on system safety.

These impacts are mainly manifested inbelow

1. Reduce power generation efficiency：

Fallen leaves and dust can fall on thesurface of solar modules, blocking sunlight and affecting power generationefficiency. In addition, the accumulation of fallen leaves and dust on thesurface of the module can hinder the dissipation of heat, leading to anincrease in local temperature of the module and further reducing powergeneration efficiency.

2. Increase security risks：

Fallen leaves and dust may enter theinterior of electrical equipment, such as inverters, junction boxes ofcomponents, connectors, etc., corroding or damaging electrical components,which may lead to poor contact, short circuits, and other faults of thesecomponents. In addition, prolonged contact between dust and components may alsocause a decrease in insulation performance, increase the risk of electricshock, and pose a threat to the safety of on-site personnel.

3. Increase the difficulty of operation andmaintenance：

Dust and fallen leaves can increase thelikelihood of system failures, so component cleaning and operation andmaintenance work in autumn power plants is particularly important. Once thesystem malfunctions, operation and maintenance personnel may need totroubleshoot hundreds or thousands of components in the system, whichundoubtedly increases the difficulty of power plant operation and maintenance.

So, what are the operation and maintenancemethods for photovoltaic power plants in autumn?

Firstly, before operation and maintenance,disconnect the power supply in advance to ensure personnel safety. The residualleaves, dust, etc. on the surface of the component should be cleaned timely ;The maintenance of the inverter mainly includes checking whether the wiring isfirm, whether the equipment is damaged, cleaning of debris, and heatdissipation; For the maintenance of the bracket, it is necessary to payattention to checking whether the connection between the bolts and the bracketis loose, and whether the anti-corrosion coating on the surface of the bracketis cracked or peeled off; The maintenance of cables mainly focuses onpreventing cable damage, aging, and loose and detached wiring. In addition, wealso need to do a good job in cleaning debris around the power station and itsequipment, as well as ventilation and heat dissipation, in order tocomprehensively ensure the safe operation of the system.