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电网技术  2009 

多馈入短路比及多馈入交互作用因子与换相失败关系研究

, PP. 23-29

Keywords: 高压直流输电,换相失败,多馈入短路比,多馈入交互作用因子

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Abstract:

本文将传统的两端直流系统短路比延伸到多馈入直流系统,建立了多馈入短路比(MSCR)表达式。基于CIGRE模型建立了三馈入直流输电模型,分析了与MSCR相关的变量,并将其与当地换相失败的关系进行了探讨。结合换相失败免疫因子(CFII)分析,结果表明增大多馈入短路比能够降低发生当地换相失败的风险。同时,从多馈入交互作用因子(MIIF)的角度分析了发生同时换相失败的风险规律,并分析了MIIF的影响因素。

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