| 引用本文: | 周岩,张俊波,陈麒米.开关变换器功率电感磁损建模及应用[J].电力自动化设备,2017,37(11): |
| ZHOU Yan,ZHANG Junbo,CHEN Qimi.Modeling and application of core losses for power inductor in switching converter[J].Electric Power Automation Equipment,2017,37(11): |
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| 摘要: |
| 以Buck、Boost变换器为例，根据磁损分离模型理论和开关变换器电路工作特征，提出一种简化的功率电感磁芯损耗计算模型。无需依赖任何磁性材料系数，仅利用一组正弦激励磁芯损耗数据就可预测Buck、Boost变换器在不同占空比下的磁损。该模型可有效体现不同因素对磁损的具体影响，通过实验测试数据验证了所提计算模型的正确性。 |
| 关键词: Buck变换器 Boost变换器 功率电感 磁芯损耗 直流偏磁 建模 |
| DOI：10.16081/j.issn.1006-6047.2017.11.021 |
| 分类号:TM46 |
| 基金项目:国家自然科学基金资助项目(51307088)；中国博士后基金资助项目(2016M601857)；江苏省博士后基金资助项目(1601153C) |
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| Modeling and application of core losses for power inductor in switching converter |
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ZHOU Yan, ZHANG Junbo, CHEN Qimi
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College of Automation, Nanjing University of Posts and Telecommunications, Nanjing 210023, China
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| Abstract: |
| According to the theory of the core loss separation model and the operating characteristics of switching converter circuit, a simplified calculation model for core losses in power inductors is proposed, in which Buck and Boost converters are taken as examples. The characteristics of core losses in the Buck and Boost converters can be predicted in different duty cycles by using only core loss data under the sinusoidal excitation without relying on any magnetic material coefficients. The proposed model can effectively reflect the effects of different factors on the core losses, and the correctness of the model is verified by the experimental data. |
| Key words: Buck converter Boost converter power inductor core losses DC bias model buildings |
