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电源优化器在光伏发电系统中的应用分析

  • 吴振锋 ,
  • 李晓刚 ,
  • 陈思铭 ,
  • 李小平 ,
  • 孙韵琳
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  • 1. 中山大学太阳能系统研究所,广州 510006;
    2. 海南天能电力有限公司,海口 570100;
    3. 顺德中山大学太阳能研究院,顺德 528300
吴振锋(1984-),男,在职研究生,研究太阳能光伏发电应用技术。

收稿日期: 2014-03-04

  修回日期: 2014-06-16

  网络出版日期: 2014-06-30

基金资助

海南重大科技项目(ZDZX2013001);广东省产学研合作科技创新平台项目(2012B090600041)

Experimental Study on the Optimization Effect of the Power Optimizer in Grid-Connected Photovoltaic Generation System

  • WU Zhen-feng ,
  • LI Xiao-gang ,
  • CHEN Si-ming ,
  • LI Xiao-ping ,
  • SUN Yun-lin
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  • 1. Institute for Solar Energy Systems, Sun Yat-sen University, Guangzhou 510006, China;
    2. Hainan Tianneng Power Co., Ltd, Haikou 528137, China;
    3. ShunDe SYSU Institute for Solar Energy, Shunde 528300, China

Received date: 2014-03-04

  Revised date: 2014-06-16

  Online published: 2014-06-30

摘要

在光伏发电系统中,阴影的遮挡会造成光伏发电系统输出功率及发电量的降低,电源优化器的分散式板载直流电源管理技术能够在一定程度上减少这种损失。本文对顺德中山大学太阳能研究院4个装机容量均为1.01 kWp的光伏并网发电系统进行电源优化器的阴影遮挡对比实验,结果表明,光伏阵列在明显阴影遮挡情况下,安装电源优化器的系统发电量较一般系统高50.7%;在阴影遮挡的大部分时间段内,安装电源优化器系统的实时输出功率较一般系统高出50%以上,优化效果明显。本文的实例分析结果对一些不可避免阴影遮挡的光伏发电系统的设计及安装具有一定的参考价值。

本文引用格式

吴振锋 , 李晓刚 , 陈思铭 , 李小平 , 孙韵琳 . 电源优化器在光伏发电系统中的应用分析[J]. 新能源进展, 2014 , 2(3) : 211 -215 . DOI: 10.3969/j.issn.2095-560X.2014.03.008

Abstract

Shading effect impacts the performance of photovoltaic (PV) system greatly by decreasing the output power and generated energy. The distributed direct current (DC) power management technology of power optimizer is helpful to reduce the loss caused by shading effect to some extent. A series of contrast tests of Power Optimizer are conducted on the four PV systems, which are respectively 1.01 kWp in capacity built at the building platform of Shunde Sun Yat-sen University Institute for Solar Energy. The results showed that the system with power optimizer generates 50.7% more energy than that of without power optimizer under shading. The real time generated power increases more than 50% in most of the periods shaded with shadow. The results of this paper are valuable for the design and installation of some PV system affected by inevitable shading effect.

参考文献

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