能源工程Issue(2)：19-24,52,7.
直流滤波器对±800 kV直流线路单极接地故障过电压的影响
Influence of DC filter parameters on single-pole grounding faultovervoltage in ±800 kV UHVDC transmission line
苏宜靖 1张光明 2于竞哲 1公衍钊 2李济沅 1张黎 2周浩 1王东举 1韩雨川1
作者信息
- 1. 浙江大学 电气工程学院,浙江 杭州 310027
- 2. 山东电力工程咨询院有限公司,山东 济南 25000
- 折叠
摘要
Abstract
The influence mechanism of DC filter parameters on single-pole grounding fault overvoltage was studied based on the electromagnetic coupling between two pole lines and the wave process.The influences of DC filter parameters including capacitance parameters and inductance parameters on the overvoltage as well as the influence regulation were analyzed.The research showed that, the DC filter capacitance parameters had certain influence on single-pole grounding fault overvoltage, and the main capacitor of DC filter influenced the overvoltage most significantly, which was the critical factor to limit the overvoltage on transmission line, while the DC filter inductance parameters had little effect on the overvoltage.The increasing trend of overvoltage tended to be slow with the increase of capacitance parameters.The overvoltage of transmission line could be basically limited within 1.7 times of rated voltage as the main capacitor of DC filter was limited within 2μF.关键词
特高压直流输电/单极接地故障/过电压/影响机理Key words
UHVDC power transmission/single-pole grounding fault/overvoltage/influence mechanism分类
信息技术与安全科学引用本文复制引用
苏宜靖,张光明,于竞哲,公衍钊,李济沅,张黎,周浩,王东举,韩雨川..直流滤波器对±800 kV直流线路单极接地故障过电压的影响[J].能源工程,2017,(2):19-24,52,7.
