基于实验物理及工业控制系统的数控电源原理

段吟池; 李格; 翁志远; 周银贵

doi:10.11884/HPLPB201830.170134

基于实验物理及工业控制系统的数控电源原理

doi: 10.11884/HPLPB201830.170134

段吟池^{1, 2,},
李格¹,
翁志远¹,
周银贵²

1.
中国科学院等离子体物理研究所, 合肥 230031
2.
中国科学技术大学, 合肥 230027

基金项目:

国家磁约束核聚变能发展研究专项 2010GB108003

详细信息

作者简介:
段吟池(1991—), 女，硕士，从事脉冲功率技术研究; dycdyc@mail.ustc.edu.cn

中图分类号: TM464
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- 文章访问数: 1341
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- 被引次数: 0
出版历程
- 收稿日期: 2017-04-21
- 修回日期: 2017-06-27
- 刊出日期: 2018-02-15

Digital power supplies based on experimental physics and industrial control system

1.
Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
2.
University of Science and Technology of China, Hefei 230027, China

摘要

摘要: 设计了一个基于实验物理及工业控制系统(EPICS)实时测控的伺服电源控制器，并将其插入现有脉冲电源测试。该电源控制器采用死区时间调制(DTM)技术伺服跟踪外部控制信号以连续调节所需输出电流，这可确保开关管工作在近似零电流关断的状态下, 开关损耗小，电源效率高。对该电源及其控制器原理进行了介绍，对DTM法进行了理论分析与研究，并通过Matlab仿真和实验验证了其原理的正确性和可行性。
- 数字脉冲电源控制器 /
- EPICS /
- 死区时间调制法 /
- Tokamak电源技术 /
- Matlab仿真
Abstract: Based on the experimental physics and industrial control system (EPICS), a servo power controller is designed to be inserted into the existing power supply for testing its function of measurement and control in real time. The power supply controller uses dead time modulation (DTM) technology to adjust the output current by tracking the external control signal. Zero current switching (ZCS) can work under DTM, thus the switching loss can be reduced and the power efficiency can be greatly improved under high frequencies. In this paper, the principle of the power supply and its controller are introduced, and the DTM method is studied and verified by Matlab simulation and experiment for developing control technology of Tokamak power supplier.
- digital pulse power supply controller /
- experimental physics and industrial control system /
- dead time modulation method /
- Tokamak power supplier /
- Matlab simulation

HTML全文

图 1 电源结构

Figure 1. Structure of power supply

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图 2 负载电流示意图

Figure 2. Waveform of load current

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图 3 外环反馈控制逻辑图

Figure 3. Logic flow of outer-loop feedback control

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图 4 DTM控制器结构

Figure 4. Structure of DTM controller

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图 5 闭环系统控制框图

Figure 5. Figure of closed-loop control

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图 6 串联谐振内环电流波形图

Figure 6. Inner-loop current waveform

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图 7 仿真模型

Figure 7. Simulation model

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图 8 稳态电流平均值随死区时间变化关系图

Figure 8. Mean value of steady-state load current based on simulation

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图 9 触摸屏界面

Figure 9. Interface of touch screen

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图 10 负载电流波形

Figure 10. Load current waveform

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表 1 电源变压器参数

Table 1. Parameters of power supply transformer

L_δ/μH L_m/ mH C_t /nF L₀/μH

6.18 1.597 6.25 0.1

下载: 导出CSV

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