电测与仪表2025，Vol.62Issue(10)：31-38,8.DOI:10.19753/j.issn1001-1390.2025.10.004
±800 kV输电线路短路电流分析及间隔棒安全状况评估
Analysis of short-circuit current and spacer safety condition assessment in±800 kV transmission line
摘要
Abstract
At present,there are few studies on the bearing capacity and safety of spacer rod under short-circuit fault of ultra high voltage(UHV)DC transmission line.This paper takes an actual±800 kV transmission line as an example,a real UHV DC transmission network simulation model including rectifier side,transmission line and inverter side is built through real time digital simulator(RTDS)dynamic model test system.The variation of short circuit current in short-circuit process has been simulated and the influence of protection action time on short-cir-cuit current has been analyzed.The finite element model of dynamic simulation including conductor and spacer has been established.The short-circuit current was applied to the model as the load,and the dynamic variation process of the transmission line displacement and spacer bearing capacity under the actual short-circuit current has been analyzed.The safety status of the spacer is evaluated.关键词
输电线路/短路故障/间隔棒/实时数字仿真器/有限元Key words
transmission line/short-circuit fault/spacer/RTDS/finite element分类
信息技术与安全科学引用本文复制引用
叶中飞,王栋,张力,杨晓辉,伍川,阮江军,李清..±800 kV输电线路短路电流分析及间隔棒安全状况评估[J].电测与仪表,2025,62(10):31-38,8.基金项目
国家电网有限公司总部科技项目(5200-202024142A-0-0-00) （5200-202024142A-0-0-00）
