短间隙真空开关电弧特性的量化分析及其调控理论研究

项目名称： 短间隙真空开关电弧特性的量化分析及其调控理论研究

项目编号： No.51207016

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 电气科学与工程学科

项目作者： 董华军

作者单位： 大连交通大学

项目金额： 25万元

中文摘要： 真空开关电弧调控理论研究是真空开关研究领域研究热点之一，深入研究真空开关电弧特性并使其量化以找到有效调控手段是解决该课题的有效途径。本项目以短间隙真空开关电弧为研究对象，分析其电弧形态和宏观粒子的几何细节特征，研究阴极斑点、阳极斑点、宏观粒子及等离子体的迁移规律，建立短间隙真空开关电弧等离子体MHD模型及分析其边界与初始条件，对短间隙真空电弧燃烧机理进行全面理论分析与实验研究。通过实验与仿真研究，建立真空间隙、电极触头、电场及磁场条件等多因素复杂影响的短间隙真空开关电弧的量化诊断模型,实现其特性的精确量化描述。本项目旨在实现短间隙真空开关电弧特性的量化诊断，掌握其内在燃烧机理，特别是多次重击穿和多次重燃机理的研究，以找到有效的电弧调控手段，进一步丰富和发展真空电弧理论，为解决真空开关电弧调控难题和研制出新型真空灭弧室奠定理论和实验技术基础。

中文关键词： 短间隙真空开关电弧；图像处理；量化分析；调控理论；

英文摘要： Research on the regulation and control theory of VSA（vacuum switching arc） is one of the great subjects in the field of vacuum circuit breakers, further quantitative study and finding an effective regulation and control means is an available way to solve this issue.This subject takes VSA in short-gap as the investigative object,the geometric features of the vacuum arc and macro-particle are analyzed; the migration law of cathode spot, anode spot，macro-particle and plasma are studied; a MHD model of VSA plasma is built and the boundary and initial condition are analyzed; the combustion mechanism of VSA in short-gap is probed and analyzed theoretically in this subject in detail.Through simulation and experiments，a quantization and diagnosis model of VSA influenced by many complicated factors such as vacuum gap, electrical contact，electric field and magnetic field is built to reveal the characteristic of VSA in quantitative aspect, mastering inherent mechanism and finding the effective regulation and control means.The aim of this subject is to diagnose the characteristics of VSA in short-gap, holding the essential characteristic of combustion mechanism,especially the researches on multiple repeated breakdowns and multiple repeated reignition,putting forward effective means of regulation;making further enrichment a

英文关键词： vacuum switching arc in short-gap；image processing；quantitative analysis；regulation and control theory；