Very Fast Transient Analysis of Transformer Winding Using Axial Multiconductor Transmission Line Theory and Finite Element Method

被引：23
|
作者：
Gunawardana, Manuja [1 ]
Fattal, Feras [2 ]
Kordi, Behzad [1 ]
机构：
[1] Univ Manitoba, Dept Elect & Comp Engn, Winnipeg, MB R3T 2N2, Canada
[2] Manitoba Hydro High Voltage Test Facil, High Voltage Lab, Winnipeg, MB R3T 1Y6, Canada
来源：
IEEE TRANSACTIONS ON POWER DELIVERY | 2019年 / 34卷 / 05期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Transformers; transients; finite element analysis; multiconductor transmission line theory; interleaved winding;
D O I：
10.1109/TPWRD.2019.2932669
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A transformer white box model based on multiconductor transmission line (MTL) theory in cylindrical coordinates has been developed. This model allows variable lengths in conductors to be incorporated into the MTL formulation. A 2D axisymmetric model for the windings is implemented using finite element method (FEM) to determine the per unit length capacitance and inductance matrices. The model is capable of producing voltage and current results in both the frequency and time domains for each turn in the winding. The results obtained using the proposed model has been compared with those from Numerical Electromagnetic Code (NEC) and measurements done by others. Applications of the proposed model in analyzing inter-turn voltages and the induced voltages on secondary windings have been investigated.
引用
收藏
页码：1948 / 1956
页数：9
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