HIAF-BRing快循环全储能脉冲电源高低压切换控制及其切换点平滑算法

李源; 吴凤军; 黄玉珍; 王晓俊; 谭玉莲; 张华剑; 朱芳芳; 李雨航; 王洁; 郭世鼎; 石峰; 燕宏斌; 高大庆

doi:10.11884/HPLPB202335.230037

HIAF-BRing快循环全储能脉冲电源高低压切换控制及其切换点平滑算法

doi: 10.11884/HPLPB202335.230037

李源^{1, 2,},
吴凤军^1, ,,
黄玉珍¹,
王晓俊¹,
谭玉莲¹,
张华剑¹,
朱芳芳¹,
李雨航^{1, 2},
王洁^{1, 2, 3},
郭世鼎^{1, 2, 3},
石峰^{1, 2, 3},
燕宏斌¹,
高大庆¹

1.
中国科学院近代物理研究所，兰州 730000
2.
中国科学院大学核科学与技术学院，北京 100049
3.
兰州大学核科学与技术学院，兰州 730000

基金项目: 国家重点研发计划项目(2019YFA0405402)

详细信息

作者简介:
李　源，liyuan@impcas.ac.cn

通讯作者:
吴凤军，wufengjun@impcas.ac.cn

中图分类号: TL503.5
计量
- 文章访问数: 395
- HTML全文浏览量: 133
- PDF下载量: 58
- 被引次数: 0
出版历程
- 收稿日期: 2023-01-23
- 修回日期: 2023-03-03
- 录用日期: 2023-03-03
- 网络出版日期: 2023-03-11
- 刊出日期: 2023-05-06

High voltage and low voltage switching control and switching point smoothing algorithm of HIAF-BRing fast cycle full energy storage pulse power supply

Li Yuan^{1, 2
,},
Wu Fengjun^{1
, ,},
Huang Yuzhen¹,
Wang Xiaojun¹,
Tan Yulian¹,
Zhang Huajian¹,
Zhu Fangfang¹,
Li Yuhang^{1, 2},
Wang Jie^{1, 2, 3},
Guo Shiding^{1, 2, 3},
Shi Feng^{1, 2, 3},
Yan Hongbin¹,
Gao Daqing¹

1.
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
2.
School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, China
3.
School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China

摘要

摘要: 应用于强流重离子加速器装置增强环（HIAF-BRing）的快循环全储能脉冲电源需要在极宽的输出电压范围内保持极高的控制精度，为此电源采用了高压功率单元和低压功率单元串联的拓扑方式，在低压段采用低压功率单元，电压升高之后切换到高压功率单元，通过高低压切换控制来实现电流全阶段的高精度输出。但是在样机实测中发现存在切换点的振荡问题，导致切换点处的输出电流绝对误差无法满足指标要求。本文提出了一种切换点平滑控制算法来平滑处理切换点占空比，给出了仿真结果，并且在HIAF-BRing快循环全储能脉冲电源样机上面实际验证了高低压切换控制方法及其切换点平滑控制算法的有效性。实验结果表明：100 A注入平台的输出电流绝对误差由±500 mA降至±50 mA，100 A注入平台的切换点处输出电流绝对误差由±1.16 A降至±120 mA，100 A注入平台输出精度较低的问题得以解决。
- 快循环全储能 /
- 脉冲电源 /
- 宽输出电压范围 /
- 注入平台 /
- 高低压切换控制 /
- 切换点平滑控制
Abstract: The fast cycle full energy storage pulse power supply for the High Intensity heavy ion Accelerator Facility-Booster Ring (HIAF-BRing) needs to maintain extremely high control accuracy in a very wide range of output voltage. For this reason, the power supply adopts the topology of high voltage power units and low voltage power unit in series. The low voltage power unit is used in low voltage stage, after voltage rises, it is switched to high voltage power units, thus high precision output of current at all stages is realized through high voltage and low voltage switching control. However, in the test of prototype, it is found that there is an oscillation problem at switching point, resulting in that the absolute error of output current at switching point cannot meet the requirements. In this paper, a switching point smoothing control algorithm is proposed to smooth switching point duty cycle, and the simulation results are given. The effectiveness of high voltage and low voltage switching control method and its switching point smoothing control algorithm is verified on the HIAF-BRing fast cycle full energy storage pulse power supply prototype. The experimental results show that the absolute error of output current of 100 A injection platform is reduced from ±500 mA to ±50 mA, the absolute error of output current at switching point of 100 A injection platform is reduced from ±1.16 A to ±120 mA, and the problem of low output accuracy of 100 A injection platform is solved.
- fast cycle full energy storage /
- pulse power supply /
- wide output voltage range /
- injection platform /
- high voltage and low voltage switching control /
- switching point smoothing control

HTML全文

图 1 HIAF-BRing二极铁电源的输出电流、输出电压和输出功率波形

Figure 1. Output current, output voltage and output power waveforms of HIAF-BRing dipole magnet power supply

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图 2 加速器电源中的二象限斩波器

Figure 2. Two-quadrant chopper in accelerator power supply

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图 3 HIAF-BRing快循环全储能脉冲电源拓扑图

Figure 3. Topology of HIAF-BRing fast cycle full energy storage pulse power supply

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图 4 以单支路为例的高低压切换控制方法对应的工作状态

Figure 4. Work states of high voltage and low voltage switching control method with single branch as an example

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图 5 高低压切换控制策略

Figure 5. High voltage and low voltage switching control strategy

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图 6 切换点处的振荡

Figure 6. Oscillation at the switching point

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图 7 切换点平滑控制算法

Figure 7. Switching point smoothing control algorithm

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图 8 仿真电路

Figure 8. Simulation circuit

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图 9 仿真控制原理

Figure 9. Simulation control principle

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图 10 加入高低压切换控制方法前后，100 A平台的输出电流波形

Figure 10. Output current waveform of 100 A platform before and after adding high voltage and low voltage switching control method

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图 11 在高低压切换控制方法下，加入切换点平滑控制算法前后的仿真对比

Figure 11. Simulation comparison before and after adding switching point smoothing control algorithm under method of high voltage and low voltage switching control

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图 12 HIAF-BRing快循环全储能脉冲电源样机和磁铁负载

Figure 12. Prototype and magnet load of HIAF-BRing fast cycle full energy storage pulse power supply

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图 13 加入高低压切换控制方法前后的100 A注入平台的实验结果

Figure 13. Experimental results of 100 A platform current before and after adding high voltage and low voltage switching control method

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图 14 加入切换点平滑控制算法前后的实验结果

Figure 14. Experimental results of 100 A platform before and after adding the switching point smoothing control algorithm

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图 15 电源的总输出电流波形和电流绝对误差波形

Figure 15. Total output current waveform and current absolute error waveform of power supply

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表 1 HIAF-BRing二极铁电源的参数

Table 1. Parameters for HIAF-BRing dipole magnet power supply

magnet inductance/mH	magnet resistance/mΩ	maximum current/A	maximum voltage/V	current rise rate/(kA·s⁻¹)	current tracking absolute error/mA	current platform absolute error/mA
116	36.4	3900	4618	≥ ±38	≤ ±200	≤ ±200

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表 2 FF1400R17IP4的相关参数

Table 2. Related parameters of FF1400R17IP4

rise time/μs	fall time/μs
0.14	0.77

下载: 导出CSV

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