双谐振拓扑高压脉冲电容器充电电源

刘劲东; 何大勇; 杨兴旺; 王勇

doi:10.11884/HPLPB201931.180314

双谐振拓扑高压脉冲电容器充电电源

doi: 10.11884/HPLPB201931.180314

刘劲东^{1, 2,},
何大勇²,
杨兴旺²,
王勇¹

1.
中国科学技术大学国家同步辐射实验室，合肥 230026
2.
中国科学院高能物理研究所加速器中心，北京 100049

基金项目:

国家自然科学基金项目 11675174

详细信息

作者简介:
刘劲东(1987—)，男，博士研究生，从事电力电子及控制、加速器技术方向的研究；liujd@ihep.ac.cn

中图分类号: TM910.6
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- 被引次数: 5
出版历程
- 收稿日期: 2018-11-12
- 修回日期: 2019-01-21
- 刊出日期: 2019-04-15

High voltage pulse capacitor charging power supply based on double resonant topology

1.
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, China
2.
Accelerator Center, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China

摘要

摘要: 脉冲电容的充电电源是脉冲功率技术中的关键设备，为研究更高精度的高压脉冲电容充电电源，基于一种较为新颖的双谐振拓扑结构，通过推导传递函数，分析了其电压和电流传输特性。根据双谐振电路存在两个谐振点的特性，提出基于双谐振变换器的充电电源充电方式，即充电阶段采用串联谐振工作模式，到高压保持阶段通过频率调制降低开关频率至接近第二谐振点，实现对脉冲电容自放电压降的动态补偿，从而保证高压充电电源充电精度的同时，极大地提高脉冲电容的高压稳定度。为验证所提出方式的可行性，基于Matlab/simulink搭建仿真模型，分别对串联谐振全桥变换器和双谐振全桥变换器两种拓扑结构进行仿真，实验结果验证了所提出双谐振拓扑的频率调制方式的可行性。
- 脉冲功率技术 /
- 高压充电电源 /
- 串联谐振 /
- 双谐振拓扑 /
- 频率调制
Abstract: The pulse capacitor charging power supply is a key device in the pulse power technology. To study the higher precision high voltage pulse capacitor charging power supply, the paper analyzes the transfer function and its voltage and current transfer characteristics based on a novel double resonance topology. There are two resonance points in the double resonance circuit. According to this characteristic, a frequency modulation control method is proposed. That is, the charging phase and the high voltage holding phase, the first phase adopts the series resonant working mode, and the high voltage holding phase reduces the switching frequency to approach the second resonance point, thereby realizing dynamic compensation of the pulse capacitor self-discharge voltage drop, so that the charging accuracy and a large increase in high voltage stability of pulse capacitance at the same time can be ensured. Based on Matlab/simulink, the simulation model is built to verify the correctness of the frequency modulation method of the proposed dual resonance topology.
- pulse power technology /
- high voltage charging power supply /
- series resonance /
- double resonant topology /
- frequency modulation

HTML全文

图 1 双谐振变换器拓扑

Figure 1. Double resonant converter topology

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图 2 LC串联谐振变换器断续工作时主要波形

Figure 2. Main waveform of LC series resonant converter on DCM

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图 3 串联谐振与双谐振的电压传输特

Figure 3. Voltage transmission characteristics of series resonance and double resonance

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图 4 串联谐振与双谐振电流传输特性曲线

Figure 4. Current transmission characteristics of series resonance and double resonance

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图 5 双谐振电路的仿真模型

Figure 5. Simulation model of double resonant circuit

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图 6 串联谐振变换器的谐振电流/电压/驱动波形

Figure 6. Resonant current/voltage/drive waveform of a series resonant converter

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图 7 双谐振变换器充电高压储能电容电压波形/局部电压放大图

Figure 7. Double resonant converter charging voltage waveform and its local amplification

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图 8 双谐振电路充电及保持工作参数响应(驱动/谐振电流/电容电压/充电电压)

Figure 8. the main waveform for double resonant circuit charging and maintaining operating (drive / resonant current / capacitor voltage / charging voltage)

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图 9 双谐振电路充电/保持阶段的谐振电流/电压/驱动波形

Figure 9. The main waveform of resonant current / voltage / switch drive waveform

下载: 全尺寸图片幻灯片

参考文献(12)

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施引文献

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