弗洛里希模型表征感应加热负载的磁特性

COMPEL Pub Date : 2024-06-28 DOI:10.1108/compel-09-2023-0427
Óscar Lahuerta, José Ortega, Claudio Carretero, Juan Pablo Martínez, Jesús Acero
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引用次数: 0

摘要

本文的目的是通过 Fröhlich 提出的 B-H 曲线确定感应负载的磁特性。研究结果通过使用 IBC,显著降低了电磁模拟的计算成本,计算时间比时域模拟快约 400 倍。此外,还开发了一种替代方法,用于通过实验确定决定感应负载磁行为的参数。最后,还进行了进一步的研究,以了解感应负载的等效阻抗与激励电流水平之间的关系。原创性/价值本文介绍了基于一次谐波近似的激励水平依赖性,并将 IBC 扩展到非线性磁性材料,从而确定了感应负载的磁特性。
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Fröhlich model characterization of magnetic properties of the induction heating load

Purpose

The purpose of this paper is the identification of the magnetic characteristics of the induction load by means of the BH curve proposed by Fröhlich.

Design/methodology/approach

An electromagnetic description of the inductor system is performed to substitute the effects of the induction load, for a mathematical condition, the so-called impedance boundary condition (IBC).

Findings

A significant reduction in the computational cost of electromagnetic simulation has been achieved through the use of the IBC, resulting in a computation time approximately 400 times faster than time domain simulation. Moreover, an alternative method has been developed to experimentally identify the parameters that determine the magnetic behavior of the induction load. Finally, further research has been conducted to understand the relationship between the equivalent impedance of an induction load and the excitation current level.

Practical implications

This work is performed to achieve a better understanding of the fundamentals involved in the electromagnetic modeling of an induction heating system.

Originality/value

This paper introduces the dependence on the excitation level based on a first harmonic approximation and extends the IBC to nonlinear magnetic materials which allows the identification of the magnetic characteristics of the induction load.

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