电子学报2017，Vol.45Issue(5)：1078-1083,6.DOI:10.3969/j.issn.0372-2112.2017.05.008
基于安全火花试验装置的电感分断电弧电阻建模研究
Arc Resistance Modeling of Inductor-Disconnected Circuit Based on Safety Spark Test Apparatus
摘要
Abstract
Inductor-Disconnected-Discharged (IDD) arc resistance model established is foundation of the evaluation of the non-explosive intrinsically safe performance for inductive circuit.The IDD characteristics were studied through test,based on the IEC safety spark test apparatus.The change laws of the discharge resistance with duration were deeply analyzed.By using non-linear regression method,the function relationship was obtained between the IDD time,inductance and initial current.Considering the tungsten and cadmium electrode structures of the IEC spark-test apparatus,a physical model of the inter-electrode arc discharge was established,and the boundary conditions of two-dimension Poisson''s equation were inferred.Based on this,the algorithm of variable separation was applied to solve the Poisson''s equation.Then,the mathematical expression of arc resistance was deduced.The relational expression between the arc discharge voltage and current of the IDD discharge were obtained for the low voltage circuits.The simulation and experiment results show that the theoretical analysis and proposed model are valid and feasible.关键词
电感分断放电/电极结构/电弧电阻/最小建弧电压/泊松方程Key words
inductor-disconnected-discharged (IDD)/electrode structure/arc resistance/minimum arcing voltage/poisson equation分类
矿业与冶金引用本文复制引用
赵永秀,刘树林,王孟,付善,付垚..基于安全火花试验装置的电感分断电弧电阻建模研究[J].电子学报,2017,45(5):1078-1083,6.基金项目
国家自然科学基金(No.51604217,No.51277149) （No.51604217,No.51277149）
陕西省教育厅专项计划(No.14JK1459) （No.14JK1459）
