Electric Field Simulation of Surge Capacitors with Typical Defects
The electric field of power capacitors with different typical defects in DC working condition and impulse oscillation working condition is studied in this paper.According to the type and location of defects and considering the influence of space charge,two-dimensional models of surge capacitors with different typical defects are simulated based on ANSYS.The distribution of the electric field inside the capacitor is analyzed,and the concentration of electric field and its influence on the insulation performance are obtained.The results show that the type of defects,the location of defects and the space charge all affect the electric field distribution inside the capacitor in varying degrees.Especially the electric field distortion in the local area such as sharp corners and burrs is relatively larger,which increases the probability of partial discharge inside the surge capacitor.
Chenmeng Zhang Yuxiang Mao Shijun Xie Yu Zhang
State Grid Sichuan Electric Power Research Institute,Chengdu 610072,China School of Electrical Engineering and Electronic Information,Xihua University,Chengdu 610039,China
国际会议
上海
英文
1-6
2017-12-28（万方平台首次上网日期，不代表论文的发表时间）