基于弧形 PFN 的长脉冲功率源研制
Development of a long-pulse power generator based on arc-type PFN
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摘要: 设计了基于弧形 Blumlein 脉冲成形网络(Blumlein PFN)的 LTD 型重复频率长脉冲功率模块。该模块将四路阻抗均为24Ω的弧形 Blumlein PFN 对称分布在 LTD 外筒圆周上,连接于 LTD 的初级绕组上,并采用两个激光触发放电开关同步驱动,整个脉冲功率模块结构紧凑,缩短了高压馈线和开关引线长度,有利于形成良好脉冲波形。在此基础上研制了两模块重复频率长脉冲功率源,实验结果表明,研制的长脉冲功率源在5 Hz 重频运行时假负载上输出脉冲幅值约为260 kV,脉冲功率达到5.2 GW,脉冲宽度约170 ns。Abstract: A compact module based on arc-type pulse forming network(PFN)for long-pulse power generator is designed. Four Blumlein PFNs with 24 Ω impedance are symmetrically connected with the LTD′s primary coil and driven by two high volt-age gas switches.The Blumlein PFNs use arc configuration.The design ensures small horizontal size of the module and compact connection of PFNs and gas switches.On this basis,a two-module long-pulse power generator is developed.At the repetition fre-quency of 5 Hz,the output pulse of the long-pulse module connected with 12 Ω load is about 260 kV in amplitude,1 70 ns in dura-tion with power of 5.2 GW.
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