高压电器2026，Vol.62Issue(6)：39-49,11.DOI:10.13296/j.1001-1609.hva.2026.06.005
±800 kV直流高速开关(HSS)小直流电流开断特性研究
Study on Small Direct Current Interruption Characteristics of±800 kV High Speed Switch(HSS)
张长虹 1李一帆 2房博一 1黄瑜珑 2许高明 1高炳灿 3吕金壮 1陈兵 1钟建英 4魏建巍 4黎卫国 1孙英杰 4杨旭 1李明洋1
作者信息
- 1. 中国南方电网有限责任公司超高压输电公司,广州 510663
- 2. 清华大学电机工程与应用电子技术系,北京 100084
- 3. 河南平高电气股份有限公司,河南 平顶山 467000
- 4. 平高集团有限公司,河南 平顶山 467000
- 折叠
摘要
Abstract
High-speed DC switch(HSS)is the key equipment for the online onnection/disconnection and fault iso-lation of the third station in the hybrid multi-terminal HVDC transmission system,and needs to have the capability to interrupt small DC current.In this paper the operating principle of current interruption by the HSS is analyzed based on circuit equation and the principle of energy conversion.An equivalent test method for the HSS to interrupt small current is proposed,and a test circuit fot the HSS for small current interruption is set up.As for the HSS proto-type,the current interruption test of the HSS under different conditions is carried out,and the influence of the varia-tion of the interrupted current,recovery voltage,opening speed of the moving contact of the interupter,gas filling pressure of interrupter and the diameter of the nozzle throat on the DC interruption performance of the HSS is stud-ied.The test results show that the current amplitude and the opening speed have a significant impact on the current inerruption performance of the HSS,while the slight variation of recovery voltage,gas filling pressure of interrupter an throat diameter of nozzle have little influence on current interruption of the HSS.The effectiveness of the test da-ta is verified by modeling and calculation.The study results in this paper has provided a basis for the design of DC high-speed switch HSS.关键词
直流高速开关/混合多端高压直流输电系统/直流电流开断特性/直流电弧电压/样机试验Key words
DC high speed switch/hybrid multi-terminal UHVDC system/DC current interruption characteristics/DC arc voltage/prototype test引用本文复制引用
张长虹,李一帆,房博一,黄瑜珑,许高明,高炳灿,吕金壮,陈兵,钟建英,魏建巍,黎卫国,孙英杰,杨旭,李明洋..±800 kV直流高速开关(HSS)小直流电流开断特性研究[J].高压电器,2026,62(6):39-49,11.
