Transient Modeling and Analysis of Transformer Windings under VFTO

被引：0

作者：

Zhang, Ping ^{[1
]}

Wang, Youhua ^{[1
]}

Nie, Xinpeng ^{[1
]}

Yan, Weili ^{[1
]}

Zhang, Haijiao ^{[2
]}

机构：

[1] Hebei Univ Technol, Dept Elect Engn, Tianjin 300130, Peoples R China

[2] Baoding Tianwei Grp, Baoding 071051, Hebei, Peoples R China

来源：

2008 7TH WORLD CONGRESS ON INTELLIGENT CONTROL AND AUTOMATION, VOLS 1-23 | 2008年

基金：

美国国家科学基金会;

关键词：

VFTO; Over-voltage; FDTD; MTLM; EMTP;

D O I：

10.1109/WCICA.2008.4593306

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Calculation of over-voltage distribution of transformer windings under Very Fast Transient Over-voltage (VFTO) is very important to insulate design of transformers windings. In order to investigate over-voltage distribution under VFTOs, a proposed model using lumped-parameter components is presented in this paper. In the case of easily destroyed former several windings, each winding is modeled as one unit; other windings are modeled using two windings as one unit. Then mathematic model based on MTL (Multi-conductor Transmission Line) Model and boundary conditions is recommended. Eventually transient over-voltage distribution of practical transformer is calculated using FDTD (Finite Difference Time Domain) method. Computational results are consistent with Electro-magnetic Transient Program (EMTP), so feasibility and validity of this method is validated.

引用

页码：2442 / +

页数：3

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