【作者】 杨鼎革； 王立军； 贾申利； 史宗谦； 张玲；

【Author】 (Xi’an JiaoTong University,710049,Xi’an) Dingge Yang Lijun Wang Shenli Jia Zongqian Shi Ling Zhang

【机构】 西安交通大学电气工程学院；

【摘要】 利用磁流体动力学模型,对大电流真空电弧动态过程进行了数值仿真和分析。在正弦电流半波上依时间顺序选择有限个离散电流值,对每个离散电流均按照稳态模型进行仿真。仿真过程中,考虑了纵向磁场的滞后对真空电弧的影响,得到了典型电弧等离子体参数在半个周波内随时间变化的曲线,并对其进行了分析。部分仿真结果与实验结果进行了对比,仿真结果与实验结果能够较好吻合。(本文部分图片只有在电子版中才是彩色的)更多还原

【Abstract】 Based on two-dimensional magentohydrodynamic(MHD)model,dynamic process of high-current vacuum arc is simulated and analyzed.Half-wave sinusoidal current is dispersed at a series of discrete moments and simulation is done at every discrete current value separately.In the simulation,taking the effect of axial magnetic field(AMF)lag on vacuum arc into account, the curves which represent the changing of arc parameters with time are obtained and analyzed. The simulation results are in part compared with the experimental results.And it could be seen that the simulation results are in agreement with the experimental results.(Some figures in this article are in colour only in the electronic version)更多还原