【摘要】 基于没有附加磁芯复位电路的磁脉冲压缩网络,设计研制了单级磁脉冲压缩系统;介绍了系统电路的工作情况,通过计算给出了系统关键元件的参数;应用Pspice仿真分析软件对系统电路进行仿真,仿真结果显示,负载为500Ω时,饱和变压器和磁开关的磁芯所需饱和时间分别为6μs和500 ns。实验结果表明:系统接200Ω负载时,输出脉冲幅值约18.5 kV,下降时间约40 ns,脉冲宽度约70 ns,最高重复频率可达500Hz;引入高压快速恢复二极管替代续流电感,不仅有效抑制了负载预脉冲,而且输出脉冲尾部的振荡幅值与持续时间都显著减小。更多还原

【Abstract】 A magnetic pulse compression system which does not contain external remagnetization circuits commonly used in magnetic compressors is presented.Principle of operation for the compressor is described.Simulation of pulse compressor working on a 500 Ω resistive load illustrates that in order to realize the desired pulse,6 μs and 500 ns magnetization period would be re-quired for cores of saturable pulse transformer and magnetic switch,respectively.The one-stage compression system delivers a-18.5 kV,70 ns pulse width across a 200 Ω load with a fall time of 40 ns and a repetition rate up to 500 Hz.To improve the matching,the inductor in parallel with load is replaced with a fast-recovering HV diode.The experiment shows that the pulse voltage reverse amplitude and damped oscillation duration are reduced drastically.更多还原