高压电器2018，Vol.54Issue(8)：212-217,224,7.DOI:10.13296/j.1001-1609.hva.2018.08.033
用于扫频阻抗法的变压器绕组等效电路模型研究
Study of Transformer Winding Equivalent Circuit Using for Sweep Frequency Impedance Method
崔迎 1龙洁 1王松 2王曙鸿 2王爽2
作者信息
- 1. 国网河南省电力公司焦作供电公司,河南 焦作 454002
- 2. 西安交通大学电力设备电气绝缘国家重点实验室,西安 710049
- 折叠
摘要
Abstract
In this paper, on the basis of sweep frequency impedance method (SFI), the equivalent circuits of double-winding transformer, which are suitable for SFI simulation analysis, are proposed with the difference of the frequency range. Firstly, the entire frequency range is separated into low frequency range and high frequency range by the frequency which is corresponding to the first peak impedance value in SFI curve. Secondly, a transformer lumped parameter T-equivalent circuit in low frequency range is established by analyzing the coupled inductors. In high frequency range, a distributed parameter ladder equivalent circuit is used for SFI analysis. Finally, the accuracy of the equivalent circuits is validated by means of a comparison between measured and emulated SFI results in a wide frequency range from 10 Hz up to 1 MHz.关键词
变压器/扫频阻抗/等效电路Key words
transformer/sweep frequency impedance/equivalent circuit引用本文复制引用
崔迎,龙洁,王松,王曙鸿,王爽..用于扫频阻抗法的变压器绕组等效电路模型研究[J].高压电器,2018,54(8):212-217,224,7.
