Comparative Core Loss Calculation Methods for Magnetic Materials under Harmonics Effect

2019 4th Asia Conference on Power and Electrical Engineering

能源学;电工学

Hein, Htutzaw^1 ; Yue, Shuaichao^1 ; Li, Yongjian^1

State Key Laboratory of Reliability and Intelligence of Electrical Equipment, Hebei University of Technology, Tianjin

300130, China^1

关键词: Comparative analysis;    Core loss calculation;    Different frequency;    Electromagnetics;    Empirical equations;    Non-sinusoidal excitation;    Sinusoidal waveforms;    Steinmetz parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/486/1/012019/pdf
DOI  :  10.1088/1757-899X/486/1/012019

来源: IOP

【 摘 要 】

The general data of industrial electromagnetics materials are given only for sinusoidal waveform, and mostly load is non-linear which may cause the harmonics effect. Steinmetz parameters, the well-known empirical equation, also differ under different frequencies and only for sinusoidal. Generalized Steinmetz equation and improved generalized Steinmetz equation are used to predicting the core loss under non-sinusoidal excitation. In this paper, a brief introduction of core loss calculation methods under non-sinusoidal excitations is discussed, and comparative analysis of under different harmonics orders and contents are presented. Ferrite N87 and Nano-crystalline 1K107 ring samples are magnetized as for experimental results. The experimental results show that the core loss depends not only frequency but also on the harmonics effect.