Chua 방정식을 이용한 전기강판의 2차원 자기특성을 고려한 교번자계 및 회전자계 특성 해석

An effective expression of two-dimensional magnetic properties of electrical steel sheet under alternating and rotating magnetic field conditions is necessary to analyze field performance and loss characteristics of electromagnetic devices accurately. So this paper presents an improved vector magnetic property model of anisotropic electrical steel sheet. This modeling is based on Chua equation, so we called this method "Chua-type Modeling". The reluctivity and hysteresis coefficients in the model are calculated using Fourier series expansion of measured Band H-waveforms. The paper also investigates additional magnetic field intensity induced by eddy current corresponding to harmonics of B-waveform, so it can be used to estimate the eddy current induced magnetic field for a better control of field and loss measurements.