Snow and ice coating is one of the main factors affecting the operation of PV plants in winter

and studying the influence of snow and ice accumulation on the power generation of PV modules can effectively support the power generation prediction and manual deicing of PV plants in winter. Therefore

the artificial snow and ice coating experimental platform is firstly designed and the study on influence of irradiance on snow and ice coating modules is performed. It is found that in the range of 200-1 000 W·m

-2

irradiance

the generation power of PV modules with light ice and snowing coating is still basically proportional to the irradiance. Then

the experiments with different snow and ice densities are performed

finding that the higher the density of the snow layer

the greater the power generation loss caused

but the high density of freezing rain ice overlays with strong light transmission

the generation power of photovoltaic module is higher than that of snow and fog layers of equal thickness. Finally

it is found through studying the relationship between snow and ice coating thickness and generation power of the power generation of the ph

otovoltaic module that the generation power is basically inversely proportional to the snow and ice coating thickness. When the ice coating thickness is up to 6 cm

the generation loss of the photovoltaic module due to rain freeze and ice coating has reached 93% and that due to ice and snow mixture and half melting snow and ice has reached 99%

and the photovoltaic module has basically no power generation ability.