Numerical Simulation of the Eddy Current Effects on the Arc Splitting Process

被引：9
作者：
Yang Fei [1 ]
Rong Mingzhe [1 ]
Wu Yi [1 ]
Sun Hao [1 ]
Ma Ruiguang [1 ]
Niu Chunping [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Elect Engn, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China
来源：
PLASMA SCIENCE & TECHNOLOGY | 2012年 / 14卷 / 11期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
arc plasma; low-voltage; simulation; eddy current; VOLTAGE CIRCUIT-BREAKERS; PLASMAS;
D O I：
10.1088/1009-0630/14/11/05
中图分类号：
O35 [流体力学]; O53 [等离子体物理学];
学科分类号：
070204 ; 080103 ; 080704 ;
摘要：
This paper focuses on a numerical simulation of the arc plasma behavior in the arc splitting process, considering the eddy currents in the electrodes and the splitter plate. Based on three-dimensional (3D) magneto-hydrodynamic (MHD) theory, a thin layer of nonlinear electrical resistance elements is used in the model to represent the voltage drop of plasma sheath and the formation of new arc root in order to include the arc splitting process in the simulation. In the arcing process, eddy currents in metal parts are generated by a time-varying magnetic field. The arc model is calculated with the time-varying magnetic field term, so that the eddy current effects can be considered. The effect of nonlinear permeability of a ferromagnetic material is also involved in the calculation. Using the simulation results for the temperature, velocity and current density distribution, the arc splitting process is analyzed in detail. The calculated results are compared with the simulation neglecting eddy currents.
引用
收藏
页码：974 / 979
页数：6
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