全固态高重频高压脉冲电源

饶俊峰; 李成建; 李孜; 姜松

doi:10.11884/HPLPB201931.190005

全固态高重频高压脉冲电源

doi: 10.11884/HPLPB201931.190005

上海理工大学机械工程学院, 上海 200093

基金项目:

国家自然科学基金青年基金项目 51707122

详细信息

作者简介:
饶俊峰(1985-)，男，博士，主要从事全固态纳秒高压脉冲发生器、大功率直流充电技术和低温等离子体应用等方面的研究工作；jfrao@usst.edu.cn

通讯作者:
李成建(1993-)，男，硕士研究生，研究方向为脉冲功率技术；qq1454908778@qq.com

中图分类号: TM832
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出版历程
- 收稿日期: 2019-01-07
- 修回日期: 2019-02-12
- 刊出日期: 2019-03-15

All solid state high-frequency and high voltage pulsed power supply

School of Mechanical Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

摘要

摘要: 设计了一款全固态高重频高压脉冲电源，主电路采用以IGBT为主开关的半桥式固态Marx电路，驱动电路采用磁芯隔离带负压偏置的同步驱动方案，并由FPGA提供充放电控制信号和故障诊断、保护。该方案既可实现对多级电容的低阻抗的快速并联充电控制，又可实现截尾功能以加快脉冲后沿获得方波脉冲，且可实现百μs以上的宽脉冲输出，可用来产生高压脉冲电场。此外，该电源还可在突发模式下输出脉冲个数和频率均可调的多个高频脉冲系列。实验表明，该输出电压幅值可高达40 kV，输出峰值电流可达100 A，重频可达30 kHz，上升沿和下降沿均低于100 ns，突发模式下重频可高达200 kHz。所设计的脉冲电源输出参数连续可调，且体积小巧。
- 脉冲电源 /
- 方波脉冲 /
- 微秒脉冲 /
- 固态Marx /
- 脉冲截尾
Abstract: In this paper, an all-solid-state high-frequency and high-voltage pulse generator is designed. The main circuit uses a half-bridge solid-state Marx circuit with IGBTs as main switches. The drive circuit uses a magnetic-isolated synchronous driver with negative voltage bias. Charge and discharge control signals and fault diagnosis and protection operation are processed by an FPGA. The capacitors in different stages can be charged quickly in parallel through low-impedance loops, and meanwhile the slow tailing pulses are truncated to generate square pulses. Besides, the pulse width over 200 μs are achieved due to the hold-on of the gate-emitter capacitors, which can be used to generate high-voltage pulsed electric field. In addition, this pulse generator can also output various numbers of high-frequency pulses with adjustable pulse numbers in burst mode. Experiments show that pulses with the output voltage amplitude of 40 kV, the peak current of 100 A, the repetitive frequency of 30 kHz, the rise time and the fall time less than 100ns are obtained. The burst mode frequency can be up to 200 kHz. The designed pulse generator is able to output high-voltage pulses with continuously adjustable parameters and the generator's size is very small.
- pulse generator /
- square pulses /
- microsecond pulse /
- solid-state Marx generator /
- pulse truncation

HTML全文

图 1 全固态高压方波脉冲发生器等效电路图

Figure 1. Equivalent schematic of all solid state high voltage rectangular pulsed power supply

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图 2 截尾过程放电通路

Figure 2. Discharging loop for truncation process

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图 3 控制系统框图

Figure 3. Schematic diagram of control system

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图 4 开关管驱动电路原理图

Figure 4. Schematic of drive circuit for IGBT

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图 5 控制信号时序图

Figure 5. Diagram of time sequence for control signals

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图 6 输出电压幅值可调

Figure 6. Output pulses with adjustable amplitudes

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图 7 输出电压脉宽可调

Figure 7. Output pulses with adjustable width

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图 8 突发模式下IGBT门极电压波形

Figure 8. Waveforms of gate voltage of IGBTs in burst mode

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图 9 突发模式下输出5个脉冲电压波形

Figure 9. Waveforms of five pulses in burst mode

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图 10 脉冲电源实物图

Figure 10. Photo of pulsed power supply

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参考文献(14)

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