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电网技术  2013 

多馈入直流系统交互作用因子的影响因素分析

, PP. 794-799

Keywords: 多馈入直流输电系统,多馈入交互作用因子,多馈入短路比

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Abstract:

多馈入交互作用因子(multi-feedinteractionfactor,MIIF)是一种能有效衡量多馈入交直流系统中直流系统间相互作用大小的指标。理论分析了直流落点间电气距离、受端交流系统等值阻抗对MIIF的影响,详细研究了MIIF与受端交流系统强弱评估指标?多馈入短路比(multi-infeedshortcircuitratio,MISCR)的关系。研究结果表明,MIIF随直流落点间电气距离的减小而增大;其他回直流对某一回直流的MIIF随该回直流逆变侧交流系统等值阻抗的增大而增大;保持直流落点距离不变,MIIF与MISCR成反比关系;保持交流系统等值阻抗不变,直流#em/em#、j间的MIIF与第#em/em#回

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