Wideband Modeling Method of Multi-winding Medium Frequency Transformer

被引：0

作者：

Zhang K. ^{[1
]}

Qi L. ^{[1
]}

Cui X. ^{[1
]}

Li Y. ^{[1
]}

Kang W. ^{[2
]}

Zhao G. ^{[2
]}

机构：

[1] School of Electrical and Electronic Engineering, North China Electric Power University, Changping District, Beijing

[2] State Key Laboratory of Advanced Power Transmission Technology, Global Energy Interconnection Research Institute Co., Ltd., Changping District, Beijing

来源：

Dianwang Jishu/Power System Technology | 2019年 / 43卷 / 02期

关键词：

DC/DC converter; Flexible substation; Multi-winding medium frequency transformer; Transmission characteristics; Wideband modeling;

D O I：

10.13335/j.1000-3673.pst.2018.1154

中图分类号：

学科分类号：

摘要：

Multi-winding medium frequency transformer is the core equipment of DC/DC transformation in Zhangbei flexible substation. Due to lack of simulation models of multi-winding transformer suitable for large capacity DC/DC converters, it is difficult to accurately analyze the external behaviors of the converters at medium and high frequencies. In this paper, a wideband model of multi-winding medium frequency transformer is established and an experimental extraction method of parasitic capacitance parameters is proposed. The parasitic capacitance parameterscan be effectively extracted by measuring the resonant frequency of the multi-winding transformer with experiment. The model and parameter extraction method of a four-winding medium frequency transformer in Zhangbei flexible substation pilot project is simulated and verified. On this basis, the voltage and current transmission characteristics of the multi-winding medium frequency transformer are studied with simulation and experiment. Results show that the parasitic capacitance parameters of the transformer must be taken into consideration at high frequencies. © 2019, Power System Technology Press. All right reserved.

引用

页码：582 / 590

页数：8

共 23 条

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