研究生: |
王仕宏 Wang, Shih-Hung |
---|---|
論文名稱: |
P型矽多晶太陽能電池製程於電勢誘發衰減現象之改善 Improvement of Potential Induced Degradation on Cell-level in P-type-poly Si solar Cell Process |
指導教授: |
蘇朝墩
Su, Chao-Ton |
口試委員: |
徐志明
蕭宇翔 |
學位類別: |
碩士 Master |
系所名稱: |
工學院 - 工業工程與工程管理學系碩士在職專班 Industrial Engineering and Engineering Management |
論文出版年: | 2017 |
畢業學年度: | 106 |
語文別: | 中文 |
論文頁數: | 44 |
中文關鍵詞: | 太陽能電池 、太陽能系統 、電勢誘發衰減 、臭氧 |
外文關鍵詞: | solar cell, solar system, PID, oxide |
相關次數: | 點閱:3 下載:0 |
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地球暖化的議題在近幾年來不斷的在各大工業國峰會,以及世界上各個經濟實力強盛的國家中,多次討論。其中,重要的政策方向之一就是替代能源,尤其以太陽能發電是最受矚目,亦是最便捷也是最潔淨之一的發電方式。因此,如美∕歐(德國為首)∕日等太陽能技術發展早的國家與地區,早已陸續將太陽能發電列為國家的基本發電項目之一。中國大陸與台灣則是目前世界上太陽能電池與模組出貨量最大的兩個製造地,約各是60%與30%的占比,兩者合幾乎近90%的全世界出貨市占。
近2-3年來,不論產業、研究單位等皆發現,影響一個太陽能發電系統最大的因子,是一項名為電勢誘發衰減(PID)現象的問題,以矽多晶太陽能電池尤為明顯,最嚴重的情形則是影響系統發電量的50%以上,甚至整個電站報廢的可能性。此議題引起各方研究與探討,無不尋找各式解決方式。
本文以臭氧氧化層方式介入多晶太陽能電池結構中,在電池電極發射層(emmiter)與抗反射層(SiN)之間加入此一層氧化膜,同時以雙層抗反射層的鍍膜方式,搭配兩層不同鍍膜之折射率值為主要的製造程序。經由實驗數據分析以及運用類神經網路與基因演算法分析,皆指出在適當的臭氧製程濃度下,配上抗反射率鍍膜折射率較高,較易穩定PID衰減率,進而提高矽多晶太陽能電池片與模組抗PID能力與品質。
Recently, the issue of global warming has been constantly discussed in summits of major industrial countries and in countries with strong economy, where one of the important policy directions is to use alternative energy sources, especially the solar energy. The sunshine is the most convenient and cleanest energy source. Therefore, countries such as the United States / Europe (Led by Germany) / Japan that achieved early development of solar energy technology have long listed solar energy as one of the basic energy sources. China and Taiwan, the two largest manufacturing sites of solar cells and modules in the world, delivered the largest shipments, accounting for approximately 60% and 30%, respectively, of global shipments of solar cells and modules.
In recent 2-3 years, industries and research units have found that the most significant factor affecting a solar power system is the Potential Induced Degradation (PID), especially for silicon polycrystalline solar cells. For the worst case, the PID problem could reduce power generation by over 50% or even cause the entire power station to be scrapped. Therefore, all parties have conducted an investigation on this issue to find the solution.
In this study, an ozone oxide layer was deposited in a polycrystalline solar cell structure, where a layer of oxide film was placed between the electrode emitter and a SiN-based anti-reflection layer, and double layer anti-reflection coatings were used, with each coating having different refractive indices. The experimental data were analyzed with the assistance of the Neural network and Genetic algorithm which suggested that an appropriate ozone concentration in the process and a higher refractive index of an anti-reflection coating were likely to stabilize the degradation, which further enhanced the quality and the anti-PID capability of the silicon poly-crystalline solar cells and modules.
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