感应电压叠加器感应腔磁芯直流去磁研究

杨实; 呼义翔; 曾江涛; 任书庆; 何德雨

doi:10.11884/HPLPB201931.180363

感应电压叠加器感应腔磁芯直流去磁研究

doi: 10.11884/HPLPB201931.180363

西北核技术研究所, 强脉冲辐射环境模拟与效应国家重点实验室, 西安 710024

基金项目:

强脉冲辐射环境模拟与效应国家重点实验室基金项目 SKLIPR1701Z

详细信息

作者简介:
杨实(1982—)，男，博士，主要从事脉冲功率技术方面的研究; yangshi@nint.ac.cn

中图分类号: TM836
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出版历程
- 收稿日期: 2018-12-13
- 修回日期: 2019-03-08
- 刊出日期: 2019-04-15

Study of magnetic core reset by direct current for induction voltage adder

State Key Laboratory of Intense Pulsed Radiation Simulation and Effect, Northwest Institute of Nuclear Technology, P.O.Box 69-10, Xi'an 710024, China

摘要

摘要: 根据感应电压叠加器感应腔的工作需求，针对感应腔磁芯的高效可靠应用，一般在感应腔工作前都要对磁芯进行去磁，以实现磁芯的利用最大化，减少磁性材料用量，降低设备体积和造价。通过对磁性材料性能的研究分析，得出了相对于传统的脉冲去磁方式，直流去磁具有电压低、电流小、易绝缘、电极烧蚀小、对变压器油无污染、成本低等优点的结论。根据去磁电流引入位置的不同，研究了两种使用直流对感应腔磁芯进行去磁的方法，并对这两种直流去磁的方法进行了深入地分析和模拟计算，验证了直流去磁的可行性和优越性。
- 感应电压叠加器 /
- 感应腔 /
- 磁芯 /
- 去磁
Abstract: Because of the working requirement of induction cell and efficient application of magnetic core, the magnetic core must be reset before the induction cell works. Reset can maximize the utilization of magnetic cores, reduce magnetic material consumption, and reduce the volume and cost of equipment. In this paper, the properties of magnetic materials are studied and analyzed. It is found that compared with the pulsed reset method, the direct current reset method has many advantages, such as low voltage, low current, little electrode erosion and low cost. According to the different import position of reset current, two direct current reset methods have been designed. Based on the theoretical analysis and numerical results, the implementation plans have been formulated.
- IVA /
- induction cell /
- magnetic core /
- magnetic core reset

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图 1 磁性材料磁滞回线示意图

Figure 1. Hysteresis cycle of magnetic core

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图 2 初级去磁电路原理图

Figure 2. Reset circuit with reset current import from primary wind

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图 3 直流去磁电路结构图

Figure 3. Schematic of the direct current reset circuit

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图 4 感应腔导体电阻估算示意图

Figure 4. Schematic of estimate for the inductor resistance

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图 5 感应腔模拟结构及去磁磁场分布图

Figure 5. Distribution of demagnetized magnetic field

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图 6 磁场强度分布曲线

Figure 6. Magnetic field intensity curve

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图 7 次级去磁电路原理图

Figure 7. Reset circuit with reset current import from secondary wind

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图 8 次级去磁回路电阻估算示意图

Figure 8. Schematic of estimate for the reset circuit resistance

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图 9 感应腔模拟结构及去磁磁场分布图

Figure 9. Simulation structure of induction cell and distribution of demagnetized magnetic field

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图 10 不同位置磁场强度的分布曲线

Figure 10. Magnetic field intensity curves for the three lines in fig. 9

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表 1 不同励磁脉冲宽度下铁基非晶磁芯的H_c

Table 1. Coercive force (H_c) under different pulse width of current

pulse width of current/μs	H_c/(A·m^－1)
DC	4
20 000	10
120	220
27	300
3	500

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参考文献(12)

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