摘要
纵向磁场是用来控制真空电弧的一种有效方式,对于真空开关来说,阳极的烧蚀状态对于真空开关的成功开断有着重要影响。因此对纵磁作用下真空开关阳极烧蚀过程的实验及仿真研究现状进行了回顾,首先,总结分析了阳极模式的分类和阳极斑点形成理论。然后,从阳极表面温度、阳极熔化和熔池旋转运动、阳极斑点温度和阳极射流3个方面分别介绍了国内外阳极区域实验研究的现状,以便深入了解阳极活动这一复杂的物理现象。并根据建模仿真的不断发展,从阳极的一维热模型,到二维阳极熔池旋转MHD模型和二维阳极偏烧模型,再到阳极活动三维瞬态模型,分别介绍了各个模型的原理和主要的仿真结果。最后,通过仿真结果与实验结果的对比,讨论了现有纵向磁场下真空开关阳极活动实验及建模仿真研究存在的不足,并指明了今后需要进一步加强的研究方向。
Axial magnetic field is an effective way to control vacuum arc. For vacuum switch, anode erosion of vacuum arc has an important influence on the successful breaking of vacuum switch. In this paper, the experiments and simulation research status of vacuum switch anode erosion process under axial magnetic field are reviewed. Firstly, the classification of anode mode and the theory of anode spot formation are summarized. Then, the current status of experimental research on anode region at home and abroad is introduced from the aspects of anode surface temperature, anode melting and molten pool swirling, anode spot temperature and anode jet, so as to understand the complex physical phenomenon of anode activity. According to the continuous development of modeling and simulation, from the one-dimensional thermal model of the anode to the two-dimensional anode molten pool deformation MHD model and the two-dimensional deflected anode erosion model and to the three-dimensional transient anode activity model, the principles of each model and the main simulation results are introduced respectively. Finally, through the comparison between the simulation results and the experimental results, the shortcomings of the vacuum switch anode activity experiment and modeling and simulation under the axial magnetic field are discussed, and the possible research directions in the future are proposed.
作者
王立军
王渊
黄小龙
张啸
贾申利
WANG Lijun;WANG Yuan;HUANG Xiaolong;ZHANG Xiao;JIA Shenli(State Key Laboratory of Electrical Insulation and Power Equipment,Xi'an Jiaotong University,Xi'an 710049,China;College of Electrical Engineering and Information Technology,Sichuan University,Chengdu 610065,China)
出处
《高电压技术》
EI
CAS
CSCD
北大核心
2019年第7期2343-2352,共10页
High Voltage Engineering
基金
国家自然科学基金(51877164
U1630135
51911530113)~~
作者简介
通信作者:王立军,1975—,男,博士,教授,博导,主要从事开关电弧理论及应用、高压开关电器数值模拟及诊断、放电等离子体理论及应用方面的研究工作。E-mail:lijunwang@mail.xjtu.edu.cn.
