期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：199
期号：5
页码：052008
DOI：10.1088/1755-1315/199/5/052008
语种：English
出版社：IOP Publishing
摘要：The Photovoltaic (PV) array is often obscured by moving clouds, surrounding buildings, and so on. That results in the formation of partial shadow in the PV array, which leads to the multi-peak characteristics of the PV array to make the traditional maximum power point tracking (MPPT) method invalid. Therefore, it is necessary to explore and analyze the output characteristics of the PV array under partial shadows in order to improve the effectiveness and accuracy of MPPT. Partial shadow is divided into static shadow and time-varying shadow. In this paper, the output characteristics of the PV array under time-varying shadow are mainly studied. The motion of the extreme points during the process of shadow variation is obtained. These research results lay the foundation for the following MPPT algorithm.
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