高电压技术2018，Vol.44Issue(2)：424-431,8.DOI:10.13336/j.1003-6520.hve.20180131012
混合式高压直流断路器空间电场分布
Space Electric Field for Hybrid High Voltage DC Circuit Breaker
摘要
Abstract
To improve the insulation design reliability of HVDC circuit breaker tower,we established a 3D model of self-designed HVDC circuit breaker tower using CREO and ANSYS hybrid modeling technology,and solved the model by electrostatic field finite element analysis method.We calculated the electric field of the component and shielding system by adding the DC withstand voltage test voltage,and calculated the electric field of valve support by adding the valve support DC withstand voltage test voltage.We got the electric field distribution around the maximum electric field by adding investigation lines.The calculation results show that the maximum electric field of±535 kV hybrid HVDC circuit breaker is 2.747 kV/mm,which is located around the comer of underlying straight shielding case.The electric field is reduced to 1.4 kV/mm 20 mm away from the electrode surface,reduced to 1 kV/mm 40 mm away from the electrode surface and reduced to less than 0.5 kV/mm 100 mm away from the electrode surface.The results show that the electric field of ±535 kV HVDC circuit breaker tower meet the requirements of electric control value,and it decays rapidly in the air clearance around the electrode.The research provides a reliable support for designing the ±535 kV HVDC circuit breaker,and it has important reference value.关键词
±535 kV/混合式高压直流断路器/表面电场/空间电场/绝缘结构/电场分布规律Key words
±535 kV/hybrid HVDC circuit breaker/surface electric field/space electric field/insulation structure/law of electric field distribution引用本文复制引用
胡秋玲,范彩云,韩坤,张志刚,黄永瑞,刘路路..混合式高压直流断路器空间电场分布[J].高电压技术,2018,44(2):424-431,8.基金项目
国家电网公司科技项目(200 kV柔性直流断路器工程化技术研究及示范应用项目).Project supported by Science and Technology Project of State Grid Corporation of China(Engineering Technology Research and Demonstration Application of ±200 kV flexible DC Circuit Breaker). （200 kV柔性直流断路器工程化技术研究及示范应用项目）
