空间电荷效应下±1000kV直流穿墙套管电场计算  

Electric Field Calculation of ±1000 kV DC Wall Casing under Space-charge Effect

作　　者：张用 刘军[2] 韩德顺 王昭鑫 程艳 孙树敏 张黎[4] 辛征[4] 张丽娜[4] 

机构地区：[1]国网山东省电力公司电力科学研究院,济南250003 [2]济南西门子变压器有限公司,济南250024 [3]山东电力调度控制中心,济南250002 [4]山东大学,济南250002

出　　处：《山东电力技术》2015年第10期5-8,共4页Shandong Electric Power

摘　　要：±1 000 k V直流穿墙套管是一个复杂的绝缘系统,在运行过程中空间电荷会导致绝缘介质内部的电场畸变,材料的绝缘极易破坏甚至击穿。利用有限元电场分析软件Elec Net搭建±1 000 k V直流穿墙套管的模型,对强场空间电荷效应下高压套管在直流、交流、极性反转等不同工况条件下的电场分布进行了仿真分析,为套管的设计研制提供参考依据。±1 000 kV DC wall casing is a complex insulation system,the existence of space charge will distort electric field distribution inside the insulating medium in the process of operation,leading to insulation damage and even breakdown of the material.The model of±1 000 kV DC wall casing is set up by ElecNet.With the space-charge effect of strong field,the distribution of electric field under different working conditions, such as direct current, alternating current and polarity reversal condition, are analyzed in the simulation.The results can provide references for casing design.

关 键 词：特高压 直流穿墙套管 空间电荷效应 极性反转 

分 类 号：TM72[电气工程—电力系统及自动化]