对一个旋转对称结构脉冲形成网络的研究,对于紧的脉冲驱动器具有低阻抗
Ruixin Yu1, Shuang Yang1, Jingming Gao1,2
1College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, China.
The Review of scientific instruments
|May 23, 2024
概括
本研究介绍了一种紧的低阻抗脉冲形成网络 (PFN),使用旋转对称结构和Blumlein脉冲形成单元 (PFU). 这种新的设计实现了高能量密度和脉冲发生器输出脉冲质量的提高.
科学领域:
- 电气工程 电气工程
- 脉冲动力系统 脉冲动力系统
背景情况:
- 脉冲形成网络 (PFNs) 对脉冲发生器至关重要,但通常很大.
- 改善PFN尺寸缩小和输出波形质量是一个关键的工程挑战.
研究的目的:
- 提出和验证一个紧的,低阻抗的PFN,具有旋转对称结构.
- 为了提高脉冲发生器的空间利用和输出波形特征.
主要方法:
- 使用四个平行Blumlein脉冲形成单元 (PFU) 设计一个PFN的设计.
- 现场电路共模拟分析开关延迟时间和输出端口位置影响.
- 对PFN的性能进行实验验证.
主要成果:
- 在PFN (φ500 × 138mm) 实现的理论最大能量密度为6.6 J/L.
- 通过290 ns的开关延迟和外围输出端口实现了最佳的准正方波脉冲调制.
- 实验生成一个准正方形波脉冲 (49.6 kV,83 ns,1 GW峰值功率) 与<3%的平原波动.
结论:
- 拟议的紧型PFN设计有效地减少了尺寸,同时保持了高输出脉冲质量.
- 旋转对称性和spline曲线结构提供了显著的空间利用优势.
- 该PFN适用于需要高峰功率的准正方波脉冲调制的应用.
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