Definition of ferromagnetic conductor skin layer characteristics in a sinusoidal electromagnetic field

2015 International Conference on Mechanical Engineering, Automation and Control Systems (MEACS) Pub Date : 2015-12-01 DOI:10.1109/MEACS.2015.7414908

G. V. Nosov, E. O. Kuleshova, A. A. Plyusnin, A. I. Elizarov

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Abstract

The technique for analytical determination of ferromagnetic conductor skin layer characteristics in a sinusoidal electromagnetic field under conditions of the conductor heating and non-linear magnetic properties has been developed. The proposed approach can be used for induction-heating installation engineering design. According to this, a conductor non-linear magnetization curve is firstly replaced by one and then by two linear sections. It is defined that conductor skin layer has constant values of specific conductivity and average temperature. Electrodynamics linear equations are solved for conductive semispace. Such skin layer parameters as an estimated magnetic permeability, a skin layer thickness and its average temperature, time of electromagnetic influence on the conductor at given maximum conductor surface temperature, electromagnetic field pressure on the conductor, resistance and inductance of the conductor are calculated. Reliability of the technique is confirmed by concordance of ferromagnetic conductor resistance and inductance with values obtained from other techniques.

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正弦电磁场中铁磁导体蒙皮层特性的定义

研究了正弦电磁场中铁磁导体发热和非线性磁性能条件下的蒙皮层特性的分析测定方法。该方法可用于感应加热装置工程设计。据此，将导体非线性磁化曲线先替换为一段，再替换为两段。定义导体蒙皮层具有恒定的比电导率和平均温度。求解了导电半空间的电动力学线性方程。计算蒙皮层参数，如估计的磁导率、蒙皮层厚度及其平均温度、给定最高导体表面温度下电磁对导体的影响时间、导体上的电磁场压力、导体的电阻和电感。铁磁导体的电阻和电感值与其他方法得到的值一致，证实了该方法的可靠性。

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2015 International Conference on Mechanical Engineering, Automation and Control Systems (MEACS)

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