中国电机工程学报Issue(12)：1996-2003,8.DOI:10.13334/j.0258-8013.pcsee.2014.12.021
±1100kV特高压直流换流阀外绝缘操作冲击放电试验及海拔校正研究
Experimental Studies on Switching Impulse Flashover Characteristics of External Insulation and Altitude Correction Methods for±1100kV UHVDC Converter Valves
摘要
Abstract
At present, ±1 100 kV is the highest HVDC voltage level in the world. ±1 100 kV HVDC converter valve is a core equipment, and the minimum indoor air gap distance for its external insulation at different altitudes is very important. In this paper, the C-EPRI’s A5000 series ±1 100 kV HVDC converter valve installation was used to carry out switching impulse tests at the SGCC UHVDC test base in Beijing. A switching impulse flashover characteristics curve was acquired. Due to limited conditions, the switching impulse flashover test of converter valve external insulation at high altitude cannot be completed. According to the long air gap switching impulse test results and the previous studies of altitude correction factors referred, the discussion and extraction of the altitude correction factor that is suitable for ±1 100 kV HVDC converter valve external insulation was made in the paper. The minimum air gap distances that are required for a ±1 100 kV HVDC converter valve installation at the defined operating overvoltage levels were calculated for different altitudes according to the switching impulse flashover characteristics curve obtained.关键词
±1100kV特高压直流/换流阀/外绝缘/操作冲击/海拔校正因数Key words
±1100kV UHVDC/converter/external insulation/switching impulse/altitude correction factor分类
信息技术与安全科学引用本文复制引用
魏晓光,宗文志,王高勇,曹均正..±1100kV特高压直流换流阀外绝缘操作冲击放电试验及海拔校正研究[J].中国电机工程学报,2014,(12):1996-2003,8.基金项目
国家高技术研究发展计划(863计划)(2012AA052701，2012AA052702)；国家电网公司科技项目(±1100 kV特高压直流输电换流阀研制及示范应用)。The National High Technology Research and Development Program(863 Program)(2012AA052701，2012AA052702) （863计划）
The SGCC(State Grid Corporation of China) Science and Technology Program (±1100kV UHVDC Converter Valve Development and Demonstration Application)。 （State Grid Corporation of China）
