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组串不同接线方式对光伏组件发电量的影响分析
引用本文:关连松,陆炜,田介花.组串不同接线方式对光伏组件发电量的影响分析[J].太阳能,2020(5):45-51.
作者姓名:关连松  陆炜  田介花
作者单位:江苏大唐国际吕四港发电有限责任公司;江苏林洋新能源科技有限公司
摘    要:研究了单面和双面光伏组件的组串分别采用C字形和一字形接线方式时的发电特性。实证电站的结果表明:在为期1年的测试周期里,单面光伏组件组串采用C字形接线方式时每kW的全年发电量比采用一字形接线方式时的高0.12%;而双面光伏组件组串采用C字形接线方式时每kW的全年发电量比采用一字形接线方式时的高0.26%。利用PVsyst软件模拟组件发电量,并与实证数据进行比较,结果发现,模拟结果和实证数据的趋势一致。同时研究了组串不同接线方式时影响双面光伏组件发电量的3个主要因素。

关 键 词:双面光伏组件  组串接线方式  发电量  模拟  实证研究  阴影遮挡  失配损失

ANALYSIS OF THE EFFECT OF DIFFERENT STRING WIRING METHOD ON THE POWER GENERATION OF PV MODULES
Guan Liansong,Lu Wei,Tian Jiehua.ANALYSIS OF THE EFFECT OF DIFFERENT STRING WIRING METHOD ON THE POWER GENERATION OF PV MODULES[J].Solar Energy,2020(5):45-51.
Authors:Guan Liansong  Lu Wei  Tian Jiehua
Affiliation:(Jiangsu Datang International Lusigang Power Generation Co.,Ltd.,Qidong 226246,China;Jiangsu Linyang Renewable Energy Technology Co.,Ltd.,Nanjing 210004,China)
Abstract:The wiring method of each string in a PV power station mainly includes C-shaped wiring method and one-line-shaped wiring method.The power generation characteristics of single-sided and bifacial PV modules under different string wiring methods were studied.The results of the empirical power station showed that during the one-year test period,the annual power generation per kW of the single-sided PV modules using the C-shaped wiring method was 0.12%higher than that when the one-line-shaped wiring method was used.The bifacial PV modules adopts the C-shaped wiring method to generate 0.26%more power than the one-line-shaped wiring.The PVsyst software was used to simulate the power generation of the PV modules and compared with the empirical data.The results showed that the simulation results were consistent with the empirical data.At the same time,the three main factors that affect the power generation of bifacial PV modules when different string wiring methods are studied.
Keywords:bifacial PV module  wiring method of each string  power generation  simulation  empirical research  shadow occlusion  mismatch loss
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