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灰塵污染對光伏電站發(fā)電的影響有哪些?

發(fā)布時間:2023-11-01 發(fā)布人:天合·種電 發(fā)布來源:http://51lib.com.cn/
西北地區(qū)擁有豐富的太陽能資源,氣候干燥,降雨量少,陽光直射時間長。但是,沙塵天氣頻繁,給太陽能發(fā)電帶來了很大的麻煩。
The northwest region has China's richest solar energy resources, with a dry climate, low rainfall, and long periods of direct sunlight. However, frequent sandstorms have brought great trouble to solar power generation.
各種問題可見,分布式屋頂項目,污染源多面廣,分布分散,污染種類繁多。
Various problems can be seen, such as distributed roof projects, which have a wide range of pollution sources, scattered distribution, and a wide variety of pollution types.
積灰污染對光伏發(fā)電的影響很大。
Ash pollution has a significant impact on photovoltaic power generation.
塵埃污染分類
Dust pollution classification
天然粉塵
Natural dust
沙塵,灰塵等
Sand, dust, etc
分布式光伏發(fā)電
Distributed photovoltaic power generation
太陽能光伏發(fā)電
油性粉塵。
Oily dust.
常見于化工廠和機械加工廠。
Commonly found in chemical and mechanical processing plants.
金屬粉塵。
Metal dust.
長時間積聚難以清除自然粉塵,常見于鋼廠、機械加工。
Long term accumulation makes it difficult to remove natural dust, which is common in steel mills and mechanical processing.
有機物粉塵。
Organic dust.
長時間積難以清洗,組件玻璃表面形成腐蝕,常見于木材廠、紡織廠、鳥類棲息地。
It is difficult to clean for a long time, and the surface of the component glass forms corrosion, which is common in wood factories, textile factories, and bird habitats.
礦物粉塵。
Mineral dust.
附著力低,與雨水和自然粉塵混合會增加清潔難度,常見于石材廠和水泥廠,長期堆積與雨水混合會產(chǎn)生板結和鈣化。酸或堿性物質的存在會腐蝕組件框架和組件玻璃。
Low adhesion, mixing with rainwater and natural dust can increase the difficulty of cleaning, commonly found in stone and cement factories. Long term accumulation and mixing with rainwater can cause hardening and calcification. The presence of acid or alkaline substances can corrode the component frame and component glass.
灰塵污染的影響
The impact of dust pollution
透光率降低,零件積灰會遮擋陽光,導致零件電池片接收到的太陽輻射能量降低。
The transmittance decreases, and the accumulation of dust on the parts can block sunlight, resulting in a decrease in the solar radiation energy received by the battery cells of the parts.
反射率上升,酸性或堿性積灰會引起組件玻璃的腐蝕,即使被腐蝕的玻璃沒有灰塵遮擋,也會引起部分太陽輻射腐蝕后的凹槽反射。
The increase in reflectivity and the accumulation of acidic or alkaline dust can cause corrosion of the component glass. Even if the corroded glass is not covered by dust, it can cause reflection of some grooves after solar radiation corrosion.
積灰?guī)б鸬臒岚咝咕植坎A囟壬?。同時,積灰?guī)е械碾s質和鈉鹽在高溫下會損壞涂層,形成不可恢復的彩虹帶。即使積灰?guī)П粵_洗干凈,該區(qū)域的光透射率也會下降。
The hot spot effect caused by the ash accumulation zone increases the local glass temperature. At the same time, impurities and sodium salts in the ash accumulation zone can damage the coating at high temperatures, forming an irreversible rainbow band. Even if the ash accumulation zone is washed clean, the light transmittance of the area will decrease.
積灰?guī)е孪戮壊AП砻骐娮杞档?,分布式光伏發(fā)電從玻璃表面到鋁框的漏電流增大,下端電池片PID衰減高。
The ash accumulation zone leads to a decrease in the surface resistance of the lower edge glass, an increase in the leakage current from the glass surface to the aluminum frame in distributed photovoltaic power generation, and a high PID attenuation of the lower battery cell.
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