A Design and Optimization Method for Measurement Systems of Vector Magnetic Properties of Electrical Steel Sheets

doi:10.7652/xjtuxb201902012

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A Design and Optimization Method for Measurement Systems of Vector Magnetic Properties of Electrical Steel Sheets

更新时间：2025-07-09

- A Design and Optimization Method for Measurement Systems of Vector Magnetic Properties of Electrical Steel Sheets
- Vol. 53, Issue 2, Pages: 88-95(2019)
- 作者机构：
  
  西安交通大学电力设备电气绝缘国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201902012
  CLC： TM936
- Online First：10 February 2019，
  
  Published：2019
- 稿件说明：
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A Design and Optimization Method for Measurement Systems of Vector Magnetic Properties of Electrical Steel Sheets[J]. 2019, 53(2): 88-95.
DOI：

A Design and Optimization Method for Measurement Systems of Vector Magnetic Properties of Electrical Steel Sheets[J]. 2019, 53(2): 88-95. DOI： 10.7652/xjtuxb201902012.

摘要

为提高电工钢片矢量磁特性测量系统的磁化均匀度与励磁效率

提出在磁极表面添加导磁物质的系统优化设计方法。首先基于有限元分析

通过改变气隙间隔与屏蔽层位置

减弱正交磁极耦合与杂散干扰

设计一种磁化均匀度高的几何励磁结构; 然后利用序列二次规划

确定导磁物质最优磁导率

减小磁路间磁阻

从而降低励磁功率需求; 最后搭建矢量磁特性测量系统并对其磁化性能进行评估。仿真与实验结果表明

对矢量磁特性测量系统进行优化后

不同激励下磁通密度的波形系数偏差较优化前减小了57.1%

磁化均匀度明显提高; 系统优化后

相同激励下磁通密度幅值较优化前增大了58.6%

励磁功率需求下降。

Abstract

A magnetic material is added on the surface of a magnetic pole to improve the magnetization uniformity and exciting capability for measurement systems of vector magnetic properties of electrical steel sheets. An exciting structure with high magnetization uniformity is designed based on finite element analysis by changing the space of air gap and the position of shield and decreasing magnetic pole coupling and stray interference. Then the structure is optimized by a sequential quadratic programming method

and the optimal value of magnetic material permeability is calculated to reduce the magnetic resistance between magnetic circuits and the demand of exciting power. The measurement system of vector magnetic properties is finally established

and the magnetization performance of the system is evaluated. Simulation and experimental results show that the waveform error of magnetic flux density decreases by 57.1% after optimization

and the uniformity of magnetization increases. The amplitude of magnetic flux density under the same excitation increases by 58.6%

and the demand for the exciting power reduces.

关键词

Keywords

references

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