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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。 |
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| 关键词 ： 光伏, 电源优化器, 阴影遮挡, 性能对比 | |||||||||||
| 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. |
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| Key words： photovoltaic power optimizer shading performance comparison | |||||||||||
| 收稿日期: 2014-03-04 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） |
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| 通讯作者: 孙韵琳（1984-），男，工程师，博士研究生，从事太阳能光伏发电技术应用研究及开发。 | |||||||||||
| 作者简介: 吴振锋（1984-），男，在职研究生，研究太阳能光伏发电应用技术。 | |||||||||||
| 引用本文: |
| 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. WU Zhen-feng, LI Xiao-gang, CHEN Si-ming, LI Xiao-ping, SUN Yun-lin. Experimental Study on the Optimization Effect of the Power Optimizer in Grid-Connected Photovoltaic Generation System. Advances in N&R Energy, 2014, 2(3): 211-215. |
| 链接本文: |
| http://www.xnyjz.giec.ac.cn/CN/10.3969/j.issn.2095-560X.2014.03.008 或 http://www.xnyjz.giec.ac.cn/CN/Y2014/V2/I3/211 |
