Research on the Optimization Design Method of Magnetic Switch Based on Field-circuit Coupling

JIANG Jinbo; ZHAO Xin; CHENG Tingqiang; HUANG Guoliang; XU Lin; CHEN Rui

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Research on the Optimization Design Method of Magnetic Switch Based on Field-circuit Coupling

更新时间：2025-06-18

- Research on the Optimization Design Method of Magnetic Switch Based on Field-circuit Coupling
- High Voltage Apparatus Pages: 1-10(2025)
- 作者机构：
  
  1.三峡大学电气与新能源学院，湖北　宜昌　 443002
  2.三峡大学湖北省输电线路工程技术研究中心，湖北　宜昌　 443002
  3.国网重庆市电力公司合川供电分公司，重庆　 401520
  4.国网嘉兴市供电公司，浙江　嘉兴　 314033
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(51707105);National Key Laboratory of Intense Pulsed Radiation Simulation and Effect(SKLIPR2008)
- DOI：
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- Published：
- 稿件说明：
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JIANG Jinbo, ZHAO Xin, CHENG Tingqiang, et al. Research on the Optimization Design Method of Magnetic Switch Based on Field-circuit Coupling[J/OL]. High voltage apparatus, 2025, 1-10.
DOI：

JIANG Jinbo, ZHAO Xin, CHENG Tingqiang, et al. Research on the Optimization Design Method of Magnetic Switch Based on Field-circuit Coupling[J/OL]. High voltage apparatus, 2025, 1-10. DOI：

摘要

磁开关具有高重频、长寿命和高平均功率等优点，能够实现脉冲前沿的压缩，已广泛应用于脉冲功率系统。目前磁开关的设计是采用伏秒积分方程确定磁芯结构体积以及绕组的匝数，设计时的精度不高。通过测量铁基纳米晶磁芯的脉冲磁化特性，据此使用多物理场仿真软件Comsol建立了考虑磁芯饱和过程的磁开关场路耦合模型，通过100 kV级的高压脉冲压缩实验，验证了仿真模型的准确性与有效性。利用磁开关仿真模型分析了磁芯的饱和时间以及杂散参数对磁开关输出波形的影响，完成了磁芯饱和时间以及减小磁开关杂散参数的优化设计。采用的场路耦合仿真优化设计方法为磁开关等含磁芯脉冲功率元件的优化设计提供了参考。

Abstract

The magnetic switch has been widely applied in pulse power system. It enables the pulse front to be compressed and has the advantages of high repetition frequency

long lifetime and high average power. At present

the design adopts the volt-second integral to determine the size of the magnetic core structure and the number of turns of the winding

which is not designed with high accuracy. Based on the measured pulse magnetic properties of the Fe-based nanocrystalline core

a magnetic switch field-circuit coupling model which considers the saturation process of the core is established in the multi-physics simulation software Comsol. The preciseness and effectiveness of the simulation model are verified by 100 kV high voltage pulse compression experiment. Then the simulation model is utilized to analyze the influence of the saturation time and stray parameters of the magnetic core on its output waveform

and the optimum design of them is completed. The field-coupling simulation optimization design method used in this paper provides a reference for the optimal design of core-containing pulsed power components such as magnetic switches.

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references

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