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中文摘要：
真空绝缘堆是脉冲功率系统的重要部件,承担着绝缘支撑以及不同氛围隔离的重要作用,往往也是整个系统的薄弱环节之一。笔者对真空中绝缘堆的不同绝缘结构进行了电场仿真分析,探讨了金属极板的层数、绝缘层与金属极板的位置、两者的比例、绝缘子的角度、电极嵌入对真空绝缘堆电场分布的影响。仿真结果表明：加入金属极板改变了绝缘子表面的电场分布;随着金属极板层数的增多,最大场强是减小的;当金属极板在外面时电场畸变减小;随着绝缘子与金属极板的比例增大,电场畸变随之增大;当绝缘子角度为45°时,电场畸变减小;电极嵌入能够降低三结合点处的电场。该仿真结果有利于真空绝缘堆的设计。
英文摘要：
Vacuum insulator stack is a critical part of the pulsed power system,and it assumes an important role of supporting insulation and isolating different atmospheres.The electric field distributions of the high-gradient vacuum insulators are simulated,and such influential factors are considered as the number of conducting layers,the positions of the conducting and insulating layers,the ratio of the two kinds of layers,the coning angle of the insulators,and the embedded electrode in insulator.The simulation results reveal that adding conducting layers changes the electric field distribution on insulator surface;the more the conducting layers,the smaller the maximum electric field intensity;the electric field distortion becomes smaller when the conducting layers are outside;with scaling up the insulator and metal layers the electric field distortion increases;when the insulator angle is forty-five degrees,the electric field distortion decreases;embedded electrode decreases the electric field intensity at the triple junction.This study may be helpful to the design of the high-gradient insulators.
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