CONTRAST EXPERIMENT FOR GENERATION LOSS OF PHOTOVOLTAIC STATION BY DUSTS

Yu Cao; Xu Shengzhi; Yao Jianxi; Zhu Honglu; Zhao Ying

doi:10.19912/j.0254-0096.tynxb.2020-1055

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Acta Energiae Solaris Sinica ›› 2022, Vol. 43 ›› Issue (4) : 243-248. DOI: 10.19912/j.0254-0096.tynxb.2020-1055

Topics on Key Technologies for Safety of Electrochemical Energy Storage Systems and Echelon Utilization of Decommissioned Power Batteries

CONTRAST EXPERIMENT FOR GENERATION LOSS OF PHOTOVOLTAIC STATION BY DUSTS

Yu Cao¹, Xu Shengzhi^2~4, Yao Jianxi¹, Zhu Honglu¹, Zhao Ying^2~4

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Abstract

The processing methods of the running data are the base of intelligent maintenance for one photovoltaic plant. Data from two array in the same terrain photovoltaic plant is spitted to two parts by before and after the noon. The pre-processed steps are introduced to eliminate the abnormal data. By analyzing the cleaned data, two PV module strings with lower power output caused by partly shading is found. In order to study the effect of cleaning gain, the power ratios of the two arrays under different solar radiation are calculated. It is found that the effect of cleaning gain has great difference for different radiation. Under the experimental conditions in this paper, the cleaning gain is about 3.3%±2.1% in the morning and 3.6%±2.0% in the afternoon at solar radiation above 200 W/m².

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photovoltaic station / data process / performance evaluate / solar energy / power generation loss / dusts

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Yu Cao, Xu Shengzhi, Yao Jianxi, Zhu Honglu, Zhao Ying. CONTRAST EXPERIMENT FOR GENERATION LOSS OF PHOTOVOLTAIC STATION BY DUSTS[J]. Acta Energiae Solaris Sinica. 2022, 43(4): 243-248 https://doi.org/10.19912/j.0254-0096.tynxb.2020-1055

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