利用脉冲循环产生高压多脉冲
High voltage multi-pulse generation by pulse circular transmission
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摘要: 依据电压脉冲在传输线中的传播特性，分析了将形成线和传输线构成封闭回路，使电脉冲在其中反复循环，从而在高阻负载上得到高压多脉冲输出的可能性，并进行了电路模拟研究。利用Blumlein脉冲形成线系统和400 kV高压电缆组成封闭回路，进行了高压实验研究，在高阻约1 kΩ负载上得到了大于200 kV的多个脉冲输出，脉冲宽度120 ns、间隔不超过400 ns。研究表明，利用脉冲循环方法可以在较高阻抗的负载上产生MHz重复频率的高压多脉冲串，其脉冲质量与形成线开关状态密切相关。Abstract: A new method to generate high voltage multi-pulse is described. The Blumlein pulse forming line(PFL) and the pulse transmission line are connected to form a closed loop, in which the voltage pulse generated by the PFL will circulate with the loss neglectable. And if the resistance of the load is much higher than that of the transmission line, the MHz repetition multi-pulse cluster will act on the load. Theory analysis and experiments have been done to prove the feasibility of this method. In the experiments, the multi-pulse clusters were generated with a voltage more than 200 kV, a pulse number more than 4, and a pulse interval less than 400 ns, according with the forecast of the theory analysis.
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