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电网技术  2009 

基于分布参数模型的T型输电线路电流差动保护新原理

, PP. 204-209

Keywords: 继电保护,T型线路,差动保护,分布参数模型

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Abstract:

在目前双端线路电流差动保护新研究成果基础上,提出一种基于分布参数模型的T型输电线路电流差动保护新原理,将原三端线路电流差动保护问题转化为2个原理相似的双端线路电流差动保护问题,并分析了这种转化的正确性。与传统T型线路全电流差动保护相比,新保护判据不受分布电容电流的影响,适用于T型高压输电线路。仿真结果表明了该判据的可行性和正确性。

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