摘 要
气体介质在电场作用下发生碰撞电离而导致电极间贯穿性放电的现象。气体介质击穿与很多因素有关,其中主要的影响因素为作用电压、电极形状、气体的性质及状态等。气体介质击穿常见的有直流电压击穿、工频电压击穿、冲击电压击穿、高气压电击穿、高真空电击穿、负电性气体击穿。
本文致力于气体间隙放电的仿真模型研究以及模型求解数值计算方法研究, 分析放电过程中各种参数的影响和气体间隙的放电机理,探索气体放电的物理规律,推动流注理论从半物理到物理研究的方向发展,为高压绝缘设备的设计提供理论依据。这对保证电网绝缘设计的可靠和经济性,提高超特高压输变电设备运行安全性上具有重要的学术意义和实际意义。
关键词:气体电介质;击穿机理;放电;模拟
Abstract
The phenomenon of penetrating discharge between electrodes is caused by collision ionization of gaseous medium under the action of electric field. The breakdown of gas medium is related to many factors, among which the main influencing factors are the acting voltage, the shape of electrode, the nature and state of gas, etc. The common breakdown of gas medium is dc voltage breakdown, power frequency voltage breakdown, impulse voltage breakdown, high pressure electrical breakdown, high vacuum electrical breakdown, negative gas breakdown.
This paper devotes to research and simulation model of gas discharge gap model to solve the numerical calculation method, the analysis of the effect of various parameters in the process of discharge and discharge mechanism of the gas gap, explore the physical laws of gas discharge, promote lingers theory from the direction of half physics to physics research, provide theoretical basis for the design of high voltage insulation equipment. It is of great academic and practical significance to ensure the reliability and economy of insulation design of power grid and improve the operation safety of UHV transmission and transformation equipment.
Keywords: Gas dielectric; Breakdown mechanism; Discharge, simulation
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气体电介质击穿机理及其模拟资源-CSDN文库