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考虑风速变化特性的风电容量可信度评估方法

, PP. 18-26

Keywords: 风力发电,风速变化特性,容量可信度,半不变量法,拉丁超立方采样

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Abstract:

随着风力发电在电网中穿透水平的提高,风力发电的容量可信度评估问题逐渐成为电网规划中关注的新热点。为描述风电出力与电网负荷的相关性,以规划阶段风电场可获得的数据为基础,基于半不变量法建立了考虑风速变化特性的风电出力模型;提出了基于拉丁超立方采样(Latinhypercubesampling,LHS)的风力发电容量可信度评估方法,通过对IEEE-RTS79系统进行评估验证了该方法的正确性和有效性,并分析了风电出力与电网负荷的相关性对容量可信度的影响。评估结果可作为风力发电参与电力平衡的重要依据。

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