Abstract
The power generation efficiency and production capacity of photovoltaic power plants are seriously affected by dust on the surface of photovoltaic panels. To solve the above problem, a simulation for dust accumulation based on the discrete element method (DEM) is researched in this paper. Firstly, a contact model is established and the contact between dust particles and photovoltaic panels is simulated. Then, a Hertz-Mindlin with JKR Cohesion model suitable for dust distribution on the surface of photovoltaic panels is proposed to simulate different working conditions, for example, different inclination angles and different flow fields. Finally, the simulation results show that the proposed method can effectively predict the dust accumulation process of photovoltaic panels, and photovoltaic panels have less dust accumulation when inclination angle is 34 degrees. The proposed model can provide a theoretical reference for the operation and maintenance of photovoltaic panels.
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