| 多时间尺度的光伏出力波动特性研究 |
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| 引用本文： | 吴振威,蒋小平,马会萌,马速良.多时间尺度的光伏出力波动特性研究[J].现代电力,2014,31(1):58-61. |
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| 作者姓名： | 吴振威 蒋小平 马会萌 马速良 |
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| 作者单位： | 1.中国矿业大学北京机电与信息工程学院,北京 100083； |
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| 基金项目： | 国家高技术研究发展计划(863计划)(2012AA050203);国家自然科学基金项目(51277157) |
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| 摘 要： | 光伏出力的波动性是影响光伏发电发展的重要因素，通过对光伏电站的历史运行数据进行统计分析，研究了不同时间尺度下光伏出力的波动特性。文章简要概述了光伏并网发电的出力波动对电网的影响，定量分析了光伏出力的波动水平，通过对不同时间尺度的光伏出力波动数据进行3种分布函数的概率密度拟合并比较结果，得出不同时间尺度下光伏出力的波动性应选择不同的概率分布模型来描述的结论。
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| 关 键 词： | 光伏发电 出力波动 时间尺度 波动水平 随机分布 |
| 收稿时间： | 2013-04-09 |
Study on Fluctuations Characteristics of Photovoltaic Power Output in Different Time Scales |
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| Affiliation: | 1.School of Mechanical Electronic & Information Engineering, China University of Mining & Technology Beijing, Beijing 100083,China;2.China Electrical Power Research Institute, Beijing 100192, China |
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| Abstract: | The fluctuations of PV power output is a significant factor that affects the development of PV power generation. In this paper, the fluctuation characteristics of PV power output in different time scales is studied through statistical calculating and analyzing of historical operation data of a PV power plant. The impact of the output fluctuations of grid connected PV power generation on power grid is discussed briefly, and the fluctuation level of the PV power output is analyzed quantitatively. Then the fluctuation data of PV generation output in different time scales show fitted with probability density of 3 kinds of distribution functions, and the results show that the fluctuation characteristics of PV generation output in different time scales should be described by choosing different distribution models of probability density. |
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