四绕组感应滤波变压器短路阻抗特性研究
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作者:
通讯作者:

石赛美(1983),女,硕士,讲师,主要从事电力系统运行与控制研究;Email:34ssm@163.com

中图分类号:

TM72,TM41

基金项目:

湖南省教育厅科学研究项目(19C1674); 邵阳市科技计划项目(2019RC53)


Research on the shortcircuit impedance characteristics of a four winding induction filtering transformer
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    摘要:

    短路阻抗是四绕组感应滤波变压器的重要技术参数,它不仅影响变压器的稳态运行、短路电流计算,而且会涉及到感应滤波效果。首先提出一种感应解耦法以建立四绕组感应滤波变压器的电压方程;然后基于短路法分析四绕组感应滤波变压器的短路阻抗特性以及滤波器阻抗对短路阻抗的影响;最后通过短路实验验证所述的理论与计算方法的正确性。结果表明滤波绕组的等效阻抗为零,满足感应滤波约束条件,且滤波器的阻抗参数对短路阻抗无任何影响。

    Abstract:

    The shortcircuit impedances are important technical parameters for a fourwinding induction filtering transformer (FWIFT), which not only affects the steadystate operation and shortcircuit current calculation, but also involves the effect of induction filtering. In this paper, an induction decoupling method is proposed to establish the voltage equation of four winding induction filter transformer. Then, based on the shortcircuit method, the shortcircuit impedance characteristics of four winding induction filter transformer and influences of filter impedance on the shortcircuit impedances are analyzed on the basis of the threephase shortcircuit method. Finally, a shortcircuit experiment is included to verify the correctness of the theory and calculation method. It is shown that the equivalent impedance of the filter winding is zero, which meets the constraints of the inductive filter. Meanwhile, the impedance parameters of the filter have no influences on the shortcircuit impedance.

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石赛美,黄肇,张贻文.四绕组感应滤波变压器短路阻抗特性研究[J].电力科学与技术学报,2020,35(5):144-149.
SHI Saimei, HUANG Zhao, ZHANG Yiwen. Research on the shortcircuit impedance characteristics of a four winding induction filtering transformer[J]. Journal of Electric Power Science and Technology,2020,35(5):144-149.

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  • 在线发布日期: 2021-04-16
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