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电网技术  2014 

双馈风电场等值准确度研究

DOI: 10.13335/j.1000-3673.pst.2014.07.023, PP. 1867-1872

Keywords: 双馈风电场,等值准确度,数值评价,趋势评价,模糊层次分析法

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Abstract:

为衡量双馈风电场等值的效果,提出一种双馈风电场等值准确度的评价方法。该方法基于直接距离法、规范系数法和模糊层次分析法,分别从数值评价和趋势评价2个方面,对系统的不同状态和多个指标进行综合量化评估。首先利用与压降不变原理和等值损耗原理相结合的加权平均法,将变速恒频双馈风力发电机组和集电线路进行相应等值。然后分别搭建风电场的详细模型和等值模型,对风电场的等值准确度进行综合量化评估。所提出的方法不仅可以科学全面地评价模型的等值准确度,还可以根据评价结果对等值模型进行修正,以提高风电场的等值精度。

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