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磁性材料的非线性建模用于电路模拟
Kamil Kutorasiński1, Jarosław Pawłowski2, Paweł Leszczyński3
1Department of Condensed Matter Physics, Faculty of Physics and Applied Computer Science, AGH University of Krakow, Reymonta 19 St., 30-059, Kraków, Poland. kamil.kutorasinski@fis.agh.edu.pl.
Scientific reports
|October 11, 2023
概括
本研究提出了一种新方法,用于制造用于电力工程的磁芯的精确时间依赖模型. 这些模型改进了诸如气体绝缘开关设备 (GIS) 等设备的模拟,并支持数字双胞胎开发.
科学领域:
- 电气工程 电气工程
- 材料科学 材料科学 材料科学
- 计算电磁学 计算机电磁学
背景情况:
- 磁环是电力工程中的关键部件,特别是在气体绝缘开关装置 (GIS) 中,用于抑制非常快的短暂过电压 (VFTO).
- 在高频和非线性条件下精确的磁性材料建模对于在GIS中模拟现象和开发数字双胞胎至关重要.
- 现有的模型往往缺乏像SPICE这样的电路模拟器所需的精度和稳定性,特别是在DC偏差条件下.
研究的目的:
- 开发一种新的方法,用于创建现实的,时间依赖的磁核的固体元素模型.
- 为了确保模型在当前域中表现出平稳的行为,以提高时间域模拟中的数值稳定性.
- 为电力工程应用中使用的磁性材料提供准确的模型,特别是在GIS中.
主要方法:
- 利用经典算法,从依赖频率的阻抗测量中推导出同等的一次性模型.
- 集成直流偏移电流测量以捕捉非线性材料行为.
- 专注于实现平滑的电流域行为,以提高模拟稳定性.
主要成果:
- 成功开发了一种方法,用于生成精确的,时间依赖的磁核的非线性块元素模型.
- 拟议的模型在时间域模拟中表现出更好的数值稳定性,这是由于流域的平滑特性.
- 该方法基于频率依赖阻抗测量,使其适用于现实世界的应用.
结论:
- 引入的方法为在电力工程中使用的磁芯建模提供了强大的方法.
- 由此产生的模型适用于电路模拟器,并有助于推进电力系统的数字双胞胎技术.
- 这项工作提高了像GIS这样的设备中精确模拟复杂电磁现象的能力.
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