脉冲变压器紧凑型脉冲功率源设计  

Design of Compact Pulsed Power Supply with Pulse Transformer

作　　者：伍友成[1] 杨宇[1] 耿力东[1] 郝世荣[1] 谢卫平[1] 王敏华[1] 张南川[1] 

机构地区：[1]中国工程物理研究院流体物理研究所,绵阳621900

出　　处：《高压电器》2011年第2期88-92,共5页High Voltage Apparatus

摘　　要：该紧凑型脉冲功率源以脉冲电容器为初始储能装置,通过脉冲变压器实现电压峰值的提升,并对形成线充电,由形成线来实现脉冲整形,形成线充电后通过自击穿开关对负载放电,在负载上获得较快前沿的高电压脉冲波形。脉冲变压器采用带开路磁芯的带绕式结构,其耦合系数大,能量传递效率高;形成线采用螺旋型Blumlein形成线,中筒为带绕式螺旋筒,内外筒为同轴圆柱筒,以水介质为形成线的储能介质。对脉冲变压器的参数进行了设计,并根据静电场仿真对脉冲变压器的高电压绝缘结构进行了优化;对螺旋型Blumlein形成线的结构进行了计算和设计。该功率源设计结构紧凑,总长度小于2.5 m,直径小于0.6 m,设计指标为在10Ω阻抗负载上获得上升前沿小于30 ns、半高宽大于95 ns、电压峰值大于650 kV的脉冲输出,初步调试结果部分验证了该脉冲功率源设计结果。The compact pulsed power source includes pulse capacitor,pulse transformer and spiral pulse forming line（PFL）.The pulse transformer is designed to be spiral strip pulse transformer with part magnetic core.Its coupling coefficient and energy transmitting coefficient is very high.The calculation and selection of the transformer＇s parameters were illuminated carefully,and its insulation design was introduced.The forming line uses spiral Blumlein PFL.Its middle conductor is spiral and the inner and outer are cylinder.The design method and theoretical calculation of the spiral PFL are explained.The pulsed power source designed is compact.Its length is less than 2.5 m,and diameter is less than 0.6 m.The design results are that output voltage peak is above 650 kV on 10 Ω load,rise time is less than 30 ns,and pulse width is about 95 ns.The primary experiment confirms partly the design of the pulse power source.

关 键 词：脉冲变压器 磁芯 螺旋形成线 Blumlein线 脉冲功率源 

分 类 号：TM417[电气工程—电器]