A comparative investigation on three-phase transformers modeling with and without magnetic coupling between phases

被引：0
|
作者：
Bronzeado, H. S. [1 ]
Saraiva, E. [2 ]
Chaves, M. L. R. [2 ]
de Oliveira, J. C. [2 ]
机构：
[1] CHESF, Recife, PE, Brazil
[2] Univ Fed Uberlandia, Coll Elect Engn, Uberlandia, MG, Brazil
来源：
2008 IEEE/PES TRANSMISSION AND DISTRIBUTION CONFERENCE AND EXPOSITION: LATIN AMERICA, VOLS 1 AND 2 | 2008年
关键词：
Magnetic coupling; Three-phase transformer modeling; Unbalanced system supply; Alternative Transient Program; Transformer inrush; Unbalanced short-circuit;
D O I：
暂无
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：
Three-phase transformer models in EMTP-like programs have been usually carry out through an association of three single-phase transformers, without taking into consideration the magnetic coupling between phases produced by the yokes of the transformer ferromagnetic core. It has been found, however, that this magnetic coupling is essential when power system unbalanced phenomena are to be studied. In this paper it is shown the simulation results of a comparative investigation between two three-phase transformer models: one represented by a bank of three single-phase transformers (no magnetic coupling) and one that considers the magnetic coupling between phases. Various situations of system imbalance are simulated and discussed.
引用
收藏
页码：645 / +
页数：2
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