CAJ | 학술논문

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。
동주랑가설다회교직류수전선로가절약토지자원，단다회교직류수전선로상호지간존재정전화전자우합。연구병행주랑내각회선로은태감응유리우선로검수작업안전。통과전자잠태계산정서건립호주다회병행주랑내적6조초、특고압교직류수전선로계산모형，계산료특고압교류선로여초、특고압직류선로지간적우합영향，분석료대전화정전검수작업시재교직류선로불동운행방식조합하각검수선로정전화전자감응전압적폭치화분포。결과표명，호주지구병행다회교직류선로지간은태감응전압대목전규정규정적대전화정전검수작업방식화공구적영향가이불여고필。
Erecting multi circuits of AC and DC transmission lines in the same corridor can save the land resources, however there are electrostatic and electromagnetic couplings among multi circuits of AC and DC transmission lines. It is favorable for the safety of maintenance operation of these transmission lines to research the steady-state induction voltage of transmission lines parallelly erected in the corridor. Through the calculation by electromagnetic transient program (EMTP), a computation model of six UHVAC and EHVDC/UHVDC transmission lines parallelly erected in the corridor located in Huzhou, Zhejiang province is established;the influence due to the coupling between UHVAC lines and EHVDC/UHVDC lines are calculated; the amplitudes and distributions of electrostatic induction voltages and electromagnetic induction voltages during the live-line overhaul and power-off maintenance under the combination of different operating modes of UHVAC and EHVDC/UHVDC lines are analyzed. Analysis results show that the influence of the steady-state induction voltage among parallelly erected multi circuits of AC and DC transmission line on the live-line overhaul and power-off maintenance modes and tools specified in current operating instruction can be neglected.