A direct current-voltage measurement method for smart photovoltaic modules with submodule level power optimizers

doi:10.1016/j.solener.2018.03.082

	A direct current-voltage measurement method for smart photovoltaic modules with submodule level power optimizers
	Gao, Qi 1,2; Zhang, Yating 1,2; Yu, Youlin3 ; Liu, Zhengxin1
	2018-06
发表期刊	SOLAR ENERGY (IF:6.0[JCR-2023],6.1[5-Year])
ISSN	0038-092X
卷号	167 页码:52-60
发表状态	已发表
DOI	10.1016/j.solener.2018.03.082
摘要	Mismatch between photovoltaic (PV) devices connected in series, caused by degradation or partial shading, may result in the significant power loss of a PV system. Therefore, smart PV (SPV) modules, integrated with power-optimization converters at the submodule level, have been used to overcome this problem. Due to the complex circuit topology of the integrated converters, the current-voltage (I-V) characteristics of most SPV modules cannot be tested directly using the routine method. This study aims to develop an I-V measurement procedure for SPV modules in the laboratory. The characteristic of the SPV module was investigated through theoretical and experimental analysis. The noise generated from the optimizer circuit was considered as the major hindrance in the I-V measurement for SPV modules, which was tested and then analyzed using Fourier analysis. Then, a filter corresponding to the noise characteristics was applied in the measurements to eliminate the noise. The measured result corresponded with the theoretical analysis; furthermore, the power linearity with irradiance and the field test verified the reasonableness of our method. The proposed method is applicable in the laboratory measurement of SPV modules within a few hundred milliseconds, which may be applied in relevant power sorting and measurements in production line.
关键词	Smart photovoltaic (SPV) module I-V measurement Fourier analysis Power optimizer
收录类别	SCI ; SCIE ; EI
语种	英语
资助项目	China Natural Science Foundation of Jiangsu Province[BK20161202]
WOS研究方向	Energy & Fuels
WOS类目	Energy & Fuels
WOS记录号	WOS:000432765700006
出版者	PERGAMON-ELSEVIER SCIENCE LTD
EI入藏号	20181504993061
EI主题词	Fourier analysis
EI分类号	Mathematics:921
WOS关键词	PV SYSTEMS ; PERFORMANCE
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/20199
专题	物质科学与技术学院物质科学与技术学院_特聘教授组_刘正新组物质科学与技术学院_博士生
通讯作者	Liu, Zhengxin
作者单位	1.Chinese Acad Sci, Res Ctr New Energy Technol, SIMIT, 235 Chengbei Rd, Shanghai 201800, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.ShanghaiTech Univ, Sch Phys Sci & Technol, 100 Haike Rd, Shanghai 201210, Peoples R China
推荐引用方式 GB/T 7714	Gao, Qi,Zhang, Yating,Yu, Youlin,et al. A direct current-voltage measurement method for smart photovoltaic modules with submodule level power optimizers[J]. SOLAR ENERGY,2018,167:52-60.
APA	Gao, Qi,Zhang, Yating,Yu, Youlin,&Liu, Zhengxin.(2018).A direct current-voltage measurement method for smart photovoltaic modules with submodule level power optimizers.SOLAR ENERGY,167,52-60.
MLA	Gao, Qi,et al."A direct current-voltage measurement method for smart photovoltaic modules with submodule level power optimizers".SOLAR ENERGY 167(2018):52-60.