[1]李宏达,张 彬.高压放电破碎电介质材料仿真研究[J].南京理工大学学报(自然科学版),2019,43(03):320-325.
 Li Hongda,Zhang Bin.Simulation study on dielectric materials brokenby high voltage discharge[J].Journal of Nanjing University of Science and Technology,2019,43(03):320-325.
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高压放电破碎电介质材料仿真研究()
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
43卷
期数:
2019年03期
页码:
320-325
栏目:
出版日期:
2019-06-30

文章信息/Info

Title:
Simulation study on dielectric materials brokenby high voltage discharge
文章编号:
1005-9830(2019)03-0320-06
作者:
李宏达1张 彬2
沈阳理工大学 1.装备工程学院; 2.自动化与电气工程学院,辽宁 沈阳 110159
Author(s):
Li Hongda1Zhang Bin2
1.School of Equipment Engineering; 2.School of Automation and Electrical Engineering,Shenyang Ligong University,Shenyang 110159,China
关键词:
高电压 电介质 等离子通道 电极结构 脉冲
Keywords:
high voltage dielectrics plasma channels electrode structure pulses
分类号:
TM89
摘要:
为了研究等离子通道的产生机制及电极结构对放电通道的影响,该文建立固-液混合介质三维模型,编制破岩仿真软件,设定电路参数及放电介质参数。通过改变电极形状、间距等,利用该软件对固-液混合介质等离子通道进行仿真,得到放电时通道及电极周围场的时空特性。仿真结果显示,脉冲发生器产生的脉冲由电极输入固体电介质后,固体电介质表面出现极化现象,产生等离子通道; 等离子通道形成于不均匀固态电介质、液体电介质的交界处,放电通道能够在ms级的时间内聚集能量密度、迅速升温并产生巨大的压力; 等离子通道周围的电场强度明显高于其他区域电场强度; 等离子通道中的能量为总储能的20%~40%时可对固态电介质产生有效破碎。
Abstract:
In order to study the generation mechanism of a plasma channel and the effect of electrode structure on a discharge channel,a three-dimensional model of solid-liquid mixture medium is established,and a rock-breaking simulation software is developed to set circuit parameters and discharge dielectric parameters. By changing the shape and spacing of the electrodes,the solid-liquid mixture plasma channel is simulated by the software,and the spatio-temporal characteristics of the channel and the field around the electrode are obtained. The simulation results show that polarization phenomenon occurs on the surface of the solid dielectrics and a plasma channel is generated after the pulse generated by the pulse generator inputs from the electrode to the solid dielectrics; the plasma channel formes at the junction of inhomogeneous solid dielectrics and liquid dielectrics,and the discharge channel can accumulate energy density in ms-level time and rapidly raise temperature to generate tremendous pressure; the electric field intensity around the plasma channel is obviously higher than that of other areas; the solid dielectrics can be effectively broken when the energy in the plasma channel is 20%~40% of the total energy storage.

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备注/Memo

备注/Memo:
收稿日期:2018-11-25 修回日期:2019-03-06
作者简介:李宏达(1977-),男,副教授,主要研究方向:强流电子、高电压技术、光电检测,E-mail:308544490@qq.com。
引文格式:李宏达,张彬. 高压放电破碎电介质材料仿真研究[J]. 南京理工大学学报,2019,43(3):320-325.
投稿网址:http://zrxuebao.njust.edu.cn
更新日期/Last Update: 2019-06-30