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电网技术  2015 

基于天气分类的风电场群总体出力特性分析

DOI: 10.13335/j.1000-3673.pst.2015.07.016, PP. 1866-1872

Keywords: 风电场群,总体出力,特性分析,天气系统分类,调峰

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Abstract:

分析风电场群总体出力特性有助于缓解大规模风电接入后的系统调峰压力,提高风电接纳水平。研究了在不同天气类型下,风电场群总体出力的特性规律。基于气象再分析数据,利用主成分分析和层次聚类法,对影响风电场群地理区域的天气类型进行分类,识别出若干种典型的天气类型。然后结合实际风电出力数据,对不同天气类型下的风电总体出力的波动性和平滑效应进行分析,揭示了天气类型与总体出力特性之间的内在联系。以蒙西电网6个风电场为研究对象,分类得到影响上述风电场的8种典型的天气系统,并对这8种天气类型下风电场群总体出力的特性进行研究。最后基于IEEE24节点系统分析了在不同天气类型下,风电场群总体出力接入后对系统调峰能力的影响,并根据分析结果对电网调度提出了建议。

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