负载回路电感对低阻抗脉冲形成线输出波形的影响
Influence of load loop inductance on output waveform of low-impedance pulse forming line
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摘要: 介绍了一个基于带状脉冲形成线的低阻抗实验平台，针对该平台设计了两种不同类型结构的匹配负载，并分别进行了实验研究，得到了不同的输出脉冲波形，发现轨道结构的水负载具有很低的负载回路电感，适于作为低阻抗脉冲形成线的匹配负载。实验结果表明：在开关电感一定的情况下，负载回路电感是影响低阻抗形成线输出波形的决定性因素。对于0.5 Ω的带状脉冲形成线，只有将负载回路电感控制在30 nH以内，才能获得波形较好的输出脉冲，高压实验结果也验证了此结论。利用数值模拟的方法，分析了负载回路电感对不同阻抗形成线输出波形的影响，结果表明：随着形成线阻抗的增加，负载回路电感对波形的影响越来越小。
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关键词:
- 脉冲功率技术 /
- 低阻抗带状脉冲形成线 /
- 负载回路电感 /
- 匹配负载
Abstract: A lowimpedance experimental platform based on strip pulse forming line(PFL) is introduced. Two different types of matching loads for the platform are designed and tested. The results show that the rail water load has very low inductance and is qualified to be the matching load for the low-impedance PFL. Load loop inductance is the decisive factor that affects the output waveform quality of the low-impedance PFL, when the inductance of the switch is constant. When the load loop inductance is less than 30 nH, the output voltage waveform is a quasi-square wave for the impedance of strip PFL being 0.5 Ω. Moreover, the influence of load loop inductance on the output waveform of PFLs with different impedances is analyzed by numerical simulation. The influence is found to decrease with the in -
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