| 一种有限差分IGBT/FWD模型研究 |
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| 引用本文： | 孟金磊,宁圃奇,温旭辉,张栋. 一种有限差分IGBT/FWD模型研究[J]. 电源学报, 2015, 13(4): 46-52 |
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| 作者姓名： | 孟金磊 宁圃奇 温旭辉 张栋 |
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| 作者单位： | 中国科学院电工研究所高功率密度电气驱动及电动汽车技术研究部,中国科学院电工研究所高功率密度电气驱动及电动汽车技术研究部,中国科学院电工研究所高功率密度电气驱动及电动汽车技术研究部,中国科学院电工研究所高功率密度电气驱动及电动汽车技术研究部 |
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| 摘 要： | 提出了一种适用于多种IGBT/FWD芯片结构的有限差分仿真模型。该模型具有较高的精度,良好的计算速度和收敛性,并能反映温度变化对IGBT/FWD特性的影响。首先深入分析了IGBT/FWD芯片的物理建模过程,然后通过双脉冲实验验证了模型准确性和温度影响特性,为解决精确测量电流的问题,提出了一种使用刺刀螺母连接器和采样电阻测量电流的方法。
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| 关 键 词： | 有限差分模型；电流测量；IGBT |
| 收稿时间： | 2015-06-05 |
| 修稿时间： | 2015-07-22 |
Studies on a Finite Difference IGBT/FWD Model |
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| MENG Jinlei,NING Puqi,WEN Xuhui and Zhang Dong. Studies on a Finite Difference IGBT/FWD Model[J]. Journal of Power Supply, 2015, 13(4): 46-52 |
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| Authors: | MENG Jinlei NING Puqi WEN Xuhui Zhang Dong |
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| Affiliation: | Institute of Electrical Engineering Chinese Academy of Sciences,Institute of Electrical Engineering Chinese Academy of Sciences,Institute of Electrical Engineering Chinese Academy of Sciences,Institute of Electrical Engineering Chinese Academy of Sciences |
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| Abstract: | A novel finite difference modeling method for various structures of IGBT/FWD chips is presented. The novel model has high accuracy, high calculation speed and stable convergence. The method can be extended to characterize the temperature effect of IGBT/FWD. After developing the models of IGBT/FWD chips, double-pulse tests were conducted and thus verified the accuracy of the presented method under different ambient temperatures. To improve the testing quality, a novel current measuring method with a Bayonet nut connector and sampling resistors was introduced in the tests. |
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| Keywords: | finite difference model current measurement Insulated gate bipolar transistor. |
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