时基反馈控制的Tesla变压器初级电源

乔汉青; 樊亚军; 夏文锋; 张兴家; 卢彦雷; 关锦清

doi:10.11884/HPLPB201830.170526

时基反馈控制的Tesla变压器初级电源

doi: 10.11884/HPLPB201830.170526

西北核技术研究所, 高功率微波技术重点实验室, 西安 710024

详细信息

作者简介:
乔汉青(1986—), 男, 博士研究生, 主要从事脉冲功率技术研究; qiaohanqing@nint.ac.cn

中图分类号: TM89
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出版历程
- 收稿日期: 2017-12-27
- 修回日期: 2018-05-07
- 刊出日期: 2018-08-15

Time-base feedback controlled primary source of Tesla transformer

Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology P.O.Box 69-13, Xi'an 710024, China

摘要

摘要: LC谐振充电是Tesla变压器常用的初级电容充电技术，但存在对控制时序要求高、易受电磁干扰和不具备故障保护能力等缺陷。针对这个问题，提出了一种时基反馈控制的LC谐振充电电源。该电源与传统LC谐振电源的主要区别在于，采用特殊设计的时基反馈电路取代多路时基控制器，将能量回收开关反向阻断瞬间的电压突变调制为谐振晶闸管触发信号，从而在能量回收结束时刻启动谐振充电，实现各工作回路准确按照预定时序运行。时基反馈电路由高压元件构成，不易受电磁干扰，且在原理上具备负载短路保护能力。该技术已经应用于CKP1000，CKP5000等多台Tesla型超宽谱脉冲源。实验结果表明，在强脉冲辐射环境下，该电源能够1000 Hz重频稳定运行，且能够在Tesla变压器初级短路故障时进行快速自动保护。
- Tesla变压器 /
- LC谐振 /
- 充电电源 /
- 时序 /
- 反馈电路 /
- 短路保护
Abstract: This paper presents a time-base feedback controlled LC resonance capacity charging power supply (CCPS) for Tesla transformer.The main improvement of this new type of LC resonance CCPS is that the multiplex pulse generator used to trigger resonance charging process in traditional LC resonance CCPS is replaced by a feedback circuit specially designed to offer appropriate time-delay triggering.The feedback circuit, composed of several high voltage components, has efficient immunity to electromagnetic interference.Meanwhile, the output short-circuit protection capability of the feedback circuit is available in principle.This new LC resonance CCPS is applied in several Tesla-type ultra wideband (UWB) pulse generators such as CKP1000 and CKP5000, etc.Experimental results show that the new LC resonance CCPS can operate stably in intense radiation circumstance with a repetition rate of 1000 Hz and has quick response to failure occurred in primary circuit of Tesla transformer.
- Tesla transformer /
- LC resonance /
- capacity charging power supply /
- time base /
- feedback circuit /
- short-circuit protection

HTML全文

图 1 典型LC谐振电源原理图

Figure 1. Principle of typical LC resonance capacity charging power supply (CCPS)

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图 2 时基反馈控制的LC谐振电源的原理图

Figure 2. Principle of time-base feedback controlled LC resonance CCPS

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图 3 时基反馈的谐振充电电源节点波形示意图

Figure 3. Waveform of time-base feedback controlled LC resonance CCPS

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图 4 电源工作波形

Figure 4. Waveforms of the CCPS

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图 5 时基反馈电路输出电流

Figure 5. Output current of the feedback circuit

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图 6 电源1000 Hz重频波形

Figure 6. Waveform of the CCPS with repetition rate of 1000 Hz

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图 7 电源短路故障保护波形

Figure 7. Waveform of output short-circuit protection

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