刘科研;叶华;裴玮;邓卫;叶学顺;

• 1:中国电力科学研究院有限公司
• 2:中国科学院电工研究所
• 3:中国科学院大学

摘要(Abstract)：

现代配电网暂动态特性呈现出复杂多变、多时间尺度等特征,对单一速率电磁暂态仿真在计算速度和精度方面提出了挑战,一般通过多速率仿真解决计算速度与精度这一矛盾问题。然而,现有的多速率仿真涉及的电网分区、时间步长计算、接口位置评估等缺乏理论量化依据支撑。针对这一问题,提出了全系统多速率状态空间矩阵的特征值计算方法,通过特征值瞬时评估多速率仿真的数值准确性与稳定性。进一步地,提出了基于改进节点法的全系统状态空间矩阵生成方法,可将其应用于大规模配电网离散矩阵的特征值计算。采用CIGRE 14节点中压配电网标准算例,通过特征值计算与仿真结果的比对,验证了所提特征值评估方法的可行性与有效性。

关键词(KeyWords)： 多速率仿真;主动配电网;特征值计算;离散模型;数值准确性与稳定性

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 刘科研;叶华;裴玮;邓卫;叶学顺;

Email:

DOI: 10.13335/j.1000-3673.pst.2019.0952

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