The Parametric Study on The Packaging of Concentrator Photovoltaic Module

• Main Authors: Zheng-Sheng Wen, 溫正昇
• Other Authors: 林依恩
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/3gwuya

碩士 === 國立虎尾科技大學 === 機械與機電工程研究所 === 99 === A procedure is Concentrator photovoltaic modules with a high-concentration photovoltaic (HCPV) panel and tracker system can effectively improve the efficiency and reduce the cost of power generation. Recently, solar cell conversion efficiency has improved significantly. However, due to errors occurring during the manufacturing or packaging process, the theoretical conversion efficiency limit for these high efficiency solar cells cannot be practically achieved. In this study, an HCPV solar module is simulated using LightTools and the Simplified Conjugate Gradient Method (SCGM) to represent the effects of each packaging parameter on solar cell efficiency. The effects of the following packaging parameters on power generation efficiency are investigated, including cycles for the Fresnel lenses; misalignment of the center axis; radius, R, of the groove in the Fresnel lenses; tilting angle; the tempered glass used for the secondary condenser optical collector; and if the secondary condenser optical collecting cup is used. It is observed that the misalignment of the center axis and tilting angles of the second optical collector have the greatest effects on illumination power density (W/mm2) and power generation. Increasing the number of cycles for the Fresnel lenses causes a decrease in illumination power density due to the influence of the radius at the bottom of the groove. If a secondary condenser optical collector is used with an injection angle of 1˚, the light focusing efficiency increases from 50% to 67%. This has a significant influence on power generation efficiency.