新型全固态高压多电平波形发生器的研制

姜松; 邱力文; 饶俊峰; 李孜

doi:10.11884/HPLPB201931.190124

新型全固态高压多电平波形发生器的研制

doi: 10.11884/HPLPB201931.190124

上海理工大学机械工程学院, 上海 200093

基金项目:

上海市扬帆项目 19YF1435000

国家自然科学基金青年项目 51707122

详细信息

作者简介:
姜松(1989—), 男，博士，从事脉冲功率及低温等离子体应用技术; jecifer@163.com

通讯作者:
饶俊峰(1985—)，男，博士，研究方向为脉冲功率技术; jfrao@usst.edu.cn

中图分类号: TM832
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出版历程
- 收稿日期: 2019-04-23
- 修回日期: 2019-06-20
- 刊出日期: 2019-11-15

Development of a new all-solid-state high voltage multilevel waveform generator

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

摘要

摘要: 为得到在生物医疗、器件物理特性等研究方面所需的高压多电平技术，提出了一种新型全固态高压多电平发生器结构。对比传统结构，该结构以更少开关管数量实现相同电平输出，这不仅减少了发生器的整体体积，更节约了成本，优化了系统的电磁兼容。详细阐述了电路的结构设计、工作原理以及阻性负载和容性负载下的控制时序，搭建了一台最大输出11级电平试验样机，实验表明，该高压多电平发生器采用改进型控制时序能够有效消除预脉冲现象，工作频率2 kHz，电压最高幅值±2 kV，能够在阻性和容性负载下稳定工作。
- 全固态 /
- 双极性 /
- 多电平
Abstract: High-voltage multi-level technology has become a hot topic in biomedical and device physical properties. This paper proposes a new all-solid-state high-voltage multi-level generator structure. Compared with the traditional structure, the structure realizes the same level output with fewer switching tubes, which not only reduces the overall volume of the generator, but also saves cost and optimizes the electromagnetic compatibility of the system. In this paper, the structure design, working principle and control timing of resistive load and capacitive load are elaborated in detail. Finally, a maximum output 11-level tester is built. Experiments show that the high-voltage multi-level generator adopts improved type. Control timing can effectively eliminate the pre-pulse phenomenon, ensure the operating frequency of 2 kHz maximum amplitude ± 2 kV, stable operation in resistive and capacitive loads.
- all-solid-state /
- bipolar /
- multilevel converter

HTML全文

图 1 新型双极性高压多电平发生器

Figure 1. A new bipolar high voltage multilevel generator

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图 2 正极性脉冲工作回路

Figure 2. Positive pulse working circuit

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图 3 负极性脉冲工作回路

Figure 3. Negative pulse working circuit

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图 4 驱动控制系统

Figure 4. Drive control system

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图 5 相同电平下不同工作回路

Figure 5. Different working circuits at the same level

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图 6 增加两级电平理想工作回路

Figure 6. An ideal working circuit for increasing two levels

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图 7 输出电压存在预脉冲

Figure 7. Prepulse exists in the output voltage

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图 8 结电容导致预脉冲

Figure 8. Junction capacitance causes prepulse

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图 9 各级电平对应开关管改进时序图

Figure 9. Modified sequence diagram of switches corresponding to different levels

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图 10 1 kHz下5 kΩ阻性负载波形

Figure 10. 5 kΩ resistive load waveform at 1 kHz

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图 11 1 kHz和2 kHz下5 kΩ阻性负载波形

Figure 11. 5 kΩ resistive load waveform at 1 kHz and 2 kHz

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图 12 不同阻值负载工作在1 kHz波形

Figure 12. Different resistance values loads waveforms at 1 kHz

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图 13 1 kHz下430 pF容性负载波形

Figure 13. 430 pF capacitive load waveform at 1 kHz

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图 14 1 kHz和2 kHz下430 pF容性负载波形

Figure 14. 430 pF capacitive load waveform at 1 kHz and 2 kHz

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图 15 不同容值负载工作在1 kHz波形

Figure 15. Different capacitive resistance values loads waveforms at 1 kHz

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表 1 输出脉冲在相同电平时所用开关管数量对比(包括0电平)

Table 1. Contrast the number of switches used for output pulse at the same levels (including 0 level)

structure type	number of switches	number of output levels/steps
multilevel generator based on full bridge structure^[13]	25	11
multilevel generator based on half-bridge structure^[4]	20	11
multi-level generator with H-bridge structure at output^[11]	14	11
a new structure proposed in this paper	12	11

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参考文献(15)

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