固态脉冲功率驱动源主磁开关的特性  

Characteristics of magnetic switch used as main switch of solid-state accelerator

作　　者：李嵩[1] 钱宝良[1] 杨汉武[1] 杨实[2] 孟志鹏[1] 

机构地区：[1]国防科技大学光电科学与工程学院,长沙410073 [2]西北核技术研究所,西安710024

出　　处：《强激光与粒子束》2012年第4期863-867,共5页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(11075209)

摘　　要：为了提高固态脉冲功率驱动源的工作性能,研究了使用磁开关作为主开关的关键参数。分析了磁芯体积、磁芯损耗以及饱和电感等关键参量对磁开关工作性能的影响。结果表明:对于选用的磁开关,当磁性高度为0.05m时,磁开关的封装系数取得极大值;平均磁路长度大于1m时,磁芯绕组的饱和电感变化缓慢。利用饱和波理论简要解释了磁芯饱和的物理过程,推导了磁开关输出脉冲上升时间因子表达式,结果表明:磁性材料厚度、电阻率以及磁芯内外层磁路长度差等参数是影响磁开关输出脉冲上升因子的重要因素。In order to improve the performance of solid-state accelerator,the characteristics of magnetic switch used as the main switch of the accelerator have been investigated.The volume of magnetic core,the loss,and saturated inductance of the magnetic switch have been derived.The results show that the spacing factor of the magnetic switch reaches the peak when the height of the magnetic materials is 0.05 m for selected magnetic cores.The saturated inductance of the windings changes slowly when the average magnetic path length of the core is greater than 1 m.The physical process of saturation in the cores was analyzed by using saturation-wave theory.The rise-time factor of the output pulse was derived.The thickness,resistivity and magnetic path length difference of the magnetic core are shown to be key parameters affecting the rise-time factor.

关 键 词：脉冲功率技术 固态化脉冲驱动源 磁开关 主开关 磁芯 

分 类 号：TM78[电气工程—电力系统及自动化]