现代电力2012，Vol.29Issue(1)：65-71,7.
间歇性遮挡对光伏组件发电量影响的研究
Study on the Influence of Intermittent Shielding on Power Generation of PV Module
周磊 1刘翼 2雷涛 1童亦斌2
作者信息
- 1. 北京能高自动化技术股份有限公司,北京10008
- 2. 北京交通大学,北京100044
- 折叠
摘要
Abstract
When some PV cells of PV module or PV array are shielded intermittently, the output voltage-current curve has the feature of stepladder shape, and corresponding power-voltage curve contains multiple local peak values, which decrease efficiency and power generation of PV array. In order to evaluate the affected value properly, the I-U characteristic curve under different intermittent shielding is analyzed mainly through project case, and the simulation model of PV cell and PV array are built in MATLAB. Then the loss of power generation caused by intermittent shielding between components is calculated, and the power generation obtained by simulation is compared with that of practical system, which verifies the feasibility of the method. In the end, study shows that influence of shielding on system power generation will be overcome by distributed MPPT control method, and maximum salvage power generation will reach 15. 52% through system monitoring, which has high engineering applications value.关键词
光伏遮挡/单体光伏电池/光伏组件/伏安特性Key words
intermittent shielding/ PV cell/ PV module/ I-U characteristic分类
信息技术与安全科学引用本文复制引用
周磊,刘翼,雷涛,童亦斌..间歇性遮挡对光伏组件发电量影响的研究[J].现代电力,2012,29(1):65-71,7.
