内置触发方式下单级FLTD触发脉冲参数及影响因素  

Characteristics and Influencing Factors of One-Stage FLTD Trigger Pulse with Internal Trigger Brick Mode

作　　者：石琦 邱爱慈[1] 王志国 孙凤举 魏振宇 SHI Qi;QIU Aici;WANG Zhiguo;SUN Fengju;WEI Zhenyu(School of Electrical Engineering, Xi’an Jiaotong University, Xi’an 710049, China;State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, Xi’an 710024, China)

机构地区：[1]西安交通大学电气工程学院,西安710049 [2]西北核技术研究院强脉冲辐射环境模拟与效应国家重点实验室,西安710024

出　　处：《西安交通大学学报》2020年第6期51-57,共7页Journal of Xi'an Jiaotong University

基　　金：国家自然科学基金资助项目(51790521)。

摘　　要：为了研究快放电直线型变压器驱动源(FLTD)内置触发方式下触发脉冲的波形参数及其影响因素,利用有限积分法(FIT)仿真软件,建立单级FLTD场路仿真模型,获得了到达各主支路开关的触发脉冲参数及其影响因素,并在1 MA FLTD实验平台上进行了验证。仿真结果表明:内置触发方式下,触发支路电感由100 nH增大至350 nH时,触发脉冲前沿由49.3 ns增大至60.1 ns;在触发支路置地电阻小于200Ω时,触发脉冲幅值随电阻增大而增大,在电阻高于200Ω后,置地电阻不影响触发脉冲幅值;角向传输线特征阻抗在58.0~76.5Ω范围变化时对触发脉冲波形参数影响较小。To study the waveform parameters of the trigger pulse of fast linear transformer driver(FLTD)in the internal triggering brick mode and its influence factors for its practical application and structural optimization,a simulation software of the finite integration technique is used to establish a single-stage FLTD field simulation model and to obtain parameters and influence factors of the trigger pulse.And the parameters are validated on the 1 MA FLTD experimental platform.The simulation results show that the leading edge of the trigger pulse increases from 49.3 ns to 60.1 ns when the inductance of the trigger brick increases from 100 nH to 350 nH.When the grounding resistance of the trigger brick is less than 200Ω,the trigger voltage increases with the value of the resistance.When the value of the grounding resistance is greater than 200Ω,increasing the value of the resistance has little effect on the trigger voltage.Changing the impedance of the azimuthal transmission line in a range from 58.0 to 76.5Ωhas little influence on waveform parameters of the trigger pulse.

关 键 词：单级FLTD 内置触发方式 电磁模型 触发脉冲 影响因素 

分 类 号：TN782[电子电信—电路与系统]