The calculation of the voltage distribution in transformer windings under VFTO based on FDTD method

被引：0
|
作者：
Zhang Zhongyuan [1 ]
Gao Shuguo [1 ]
Lu Fangcheng [1 ]
Liu Yunpeng [1 ]
机构：
[1] North China Elect Power Univ, Sch Elect Engn, Baoding, Peoples R China
来源：
2006 IEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS | 2006年
关键词：
VFTO; multi-conductor transmission-lines model; FDTD; Voltage diskibution;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
In order to study the voltage distribution in transformer windings under Very Fast Transient Overvoltage (VFTO), a model for transformer windings has been developed based on Multi-conductor Transmission-Lines (MTLs) theory and the computing equations of the model based on Finite-Difference Time-Domain method(FDTD) is deduced. The Vector Fitting method is adopted to treat the frequency-dependent parameter by expanding the time-domain form of internal impedance of the transformer windings into a sum of finite exponential functions which are easy for the time-domain convolution. For validation, an actual transformer winding model has been studied. The calculated result are compared with the measured result and a satisfactory result is obtained.
引用
收藏
页码：856 / +
页数：2
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