电网技术Issue(8)：2310-2314,5.DOI:10.13335/j.1000-3673.pst.2014.08.046
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
Calculation and Analysis on Steady-State Induced Voltage During Maintenance Operation of Multi Parallel Circuits of EHV/UHVDC/UHVAC Transmission Lines
张文杰 1张弓达 2岳灵平 1张瑞 2楼平 1周沛洪 2张晓琴2
作者信息
- 1. 国网浙江省电力公司湖州供电公司，浙江省 湖州市 313000
- 2. 国网电力科学研究院，湖北省 武汉市 430074
- 折叠
摘要
Abstract
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.关键词
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Key words
erected in the same corridor/UHV AC/DC transmission lines/line maintenance operation/steady induced voltage/coupling分类
信息技术与安全科学引用本文复制引用
张文杰,张弓达,岳灵平,张瑞,楼平,周沛洪,张晓琴..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[J].电网技术,2014,(8):2310-2314,5.
