高电压脉冲放电破岩系统建模分析  

Simulation of High Voltage Pulse Rock Breaking System

作　　者：徐尤来 刘毅 黄仕杰[2] 李化 林福昌 XU Youlai;LIU Yi;HUANG Shijie;LI Hua;LIN Fuchang(State Key Laboratory of Advanced Electromagnetic Engineering and Technology,School of Electrical and Electronic Engineering,Huazhong University of Science and Technology,Wuhan 430074,China;Key Laboratory of Pulsed Power Technology(Huazhong University of Science and Technology),Ministry of Education,Wuhan 430074,China)

机构地区：[1]强电磁工程与新技术国家重点实验室电气与电子工程学院,华中科技大学,武汉430074 [2]脉冲功率技术教育部重点实验室,华中科技大学,武汉430074

出　　处：《真空科学与技术学报》2023年第4期298-304,共7页Chinese Journal of Vacuum Science and Technology

基　　金：国家自然科学基金项目(52177144)。

摘　　要：等离子体通道是高电压脉冲放电破岩的“工具”,通道形成及膨胀使岩石破碎过程伴随着通道阻抗的急剧变化。为更好地分析高电压脉冲放电破岩系统的能量利用效率,结合破岩空腔的脱模分析获得了通道的穿透深度及实际长度,基于能量平衡方程建立了等离子体通道阻抗模型,建立了高电压脉冲放电破岩系统的电路分析模型,仿真计算与试验结果对比表明该模型能够准确分析高电压脉冲放电破岩系统的输出特性,为系统优化提供理论指导。Plasma channels are the"tools"for high-voltage pulse discharge to break rock;the formation and expansion of the channels cause the rock crushing process with sharp changes in the impedance of the channels.In order to analyze the energy utilization efficiency of the high voltage pulse discharge rock breaking system,combined with the demolding analysis of rock breaking cavity to obtain the penetration depth and actual length of the channel,a plasma channel impedance model is established based on the energy balance equation.Then a circuit analysis model of the high voltage pulse discharge rock breaking system is established;the simulation and test results show that the model can accurately analyze the output characteristics of the high voltage pulse discharge rock breaking system,which provides theoretical guidance for system optimization.

关 键 词：高电压脉冲放电破岩 通道电阻模型 空腔脱模 分布参数 电路仿真 

分 类 号：TM89[电气工程—高电压与绝缘技术]