A practical core loss model for filter inductors of switched power converters
A practical core loss model for filter inductors of switched power converters
复制标题
开关电源变换器滤波电感实用磁芯损耗模型
DOI：
10.1109/jestpe.2017.2761127
复制
发表时间：
2018
影响因子：
5.5
通讯作者：
X. Wang and F. Blaabjerg
中科院分区：
文献类型：
--
作者：
H. Matsumori;T. Shimizu;X. Wang and F. Blaabjerg
提出了电力电子变换器滤波器电感的铁芯损耗模型。该模型可以计算有效地分析方形电压激励和预磁化条件下电感器的铁芯损耗。首先，利用该模型对降压斩波励磁下滤波器电感的铁芯损耗进行了计算，并与传统方法进行了比较。对比结果表明，该方法在预磁化条件下的铁芯损耗预测效果优于传统方法。然后，对脉宽调制逆变器励磁下滤波器电感的铁芯损耗进行了评估，结果表明，该模型不仅能准确预测铁芯损耗，还能识别出磁滞损耗部分。这些结果表明，该方法可以进一步用于电力电子应用磁性材料的开发。
This paper proposes a core loss model for filter inductors of power electronic converters. The model allows a computationally efficient analysis on the core loss of the inductor under the square voltage excitation and the premagnetization condition. First, the core loss of the filter inductor under buck chopper excitation is evaluated with the proposed model and compared with the conventional methods. The comparison shows that the proposed method results in a better core loss prediction under the premagnetized condition than that of conventional alternatives. Then, the core loss of the filter inductor with the pulsewidth modulated inverter excitation is evaluated, which shows that the proposed model not only accurately predicts the core loss but also identifies the hysteresis loss part. These results demonstrate that the approach can further be used for the development of magnetic materials for power electronic applications.