Experimental study on influence of different dust particle size on output characteristics of solar panel

The desert dust particles with different particle sizes are deposited on the surface of solar panel. And monitoring the open circuit voltage, short-circuit current, output power, solar radiation and environmental parameters of Solar panel in real time under different working conditions. Then analyze the effects of desert dust particles with different particle sizes on Solar panel output power, power loss rate, conversion efficiency and fill factor. The results showed that the power of sand Solar panel is significantly lower than that of cleaning components. With the increase of dust particle size (0.05-0.30 mm) deposited on the surface of Solar panel, the output power, conversion efficiency and filling factor of the components are all upward trend. Compared with the cleaning component, the maximum drop in output power is only 5.8% and the power loss rate [λ] is decreasing, and the maximum value is 29%. © 2019, Editorial Board of Acta Energiae Solaris Sinica. All right reserved.