Abstract—Based on previous study of photovoltaic system performance ratio (PR), this paper introduces our efforts in exploring the influencing factors which includes shadow, mismatch loss of series-parallel connection and dust. For photovoltaic systems, the performance ratio can be regarded as the evaluation index even though there is still no uniform evaluation standard in the industry. Actually, the study of performance ratio is focused on the photovoltaic system itself in some degree. Different factors influence the performance of photovoltaic systems in different degrees. We did several relevant researches by setting up an experimental platform and necessary contrast experiments have been done, such as different areas of shadow, different kinds of connection methods and so on. Through the algorithm of performance ratio, we did some analysis and some conclusions have been drawn which may be useful for the future design and evaluation of photovoltaic system.
Index Terms—Performance ratio, shadow, mismatch loss of series-parallel connection, photovoltaic systems.
Qingguo Xu is with East China University of Science and Technology, Shanghai, China (e-mail: qingguoxu@126.com).
Hongbo Li and Guoqiang Hao were with the Hareon Solar, Jiangyin, Jiangsu Province, China. Now, they are with East China University of Science and Technology, Shanghai, China (e-mail: lihongbo@ecust.edu.cn, haoguoqiang@ecust.edu.cn).
Yefei Ding is with Shanghai Solar Energy Research Center, Shanghai, China (e-mail: dingyefei@solarcell.net.cn).
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Cite:Qingguo Xu, Hongbo Li, Guoqiang Hao, and Yefei Ding, "Study on Several Influencing Factors of Performance Evaluation Index of Photovoltaic System," Journal of Clean Energy Technologies vol. 4, no. 6, pp. 424-429, 2016.
