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电网技术  2014 

并行多回交直流输电线路检修作业时稳态感应电压计算与分析

DOI: 10.13335/j.1000-3673.pst.2014.08.046, PP. 2310-2314

Keywords: 同走廊架设,特高压交,直流线路,线路检修作业,稳态感应电压,耦合

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Abstract:

同走廊架设多回交直流输电线路可节约土地资源,但多回交直流输电线路相互之间存在静电和电磁耦合。研究并行走廊内各回线路稳态感应有利于线路检修作业安全。通过电磁暂态计算程序建立湖州多回并行走廊内的6条超、特高压交直流输电线路计算模型,计算了特高压交流线路与超、特高压直流线路之间的耦合影响,分析了带电和停电检修作业时在交直流线路不同运行方式组合下各检修线路静电和电磁感应电压的幅值和分布。结果表明,湖州地区并行多回交直流线路之间稳态感应电压对目前规程规定的带电和停电检修作业方式和工具的影响可以不予考虑。

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