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风速波动下风电场变参数等值建模方法

, PP. 277-283

Keywords: 定速风电机组,风电场,动态等值,风速波动,变参数

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Abstract:

为解决风速波动下利用风电场常用等值建模方法建立的风电场模型存在无功功率误差问题,提出了一种适用于定速机组风电场的变参数等值建模方法。分别针对机端固定电容器和分组投切电容器两种无功补偿方式,理论推导变参数电容的计算方法,并给出等值模型的结构及其仿真建模过程,从而得到风电场变参数模型。通过算例仿真,并与常用等值方法进行了比较分析。结果表明,提出的变参数等值建模方法是有效的,所建立的风电场等值模型能够较准确地反映风电场并网点的风速波动特性。

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