Finite-Element Analysis of Short-Circuit Electromagnetic Force in Power Transformer

被引：107

作者：

Ahn, Hyun-Mo ^{[1
]}

Lee, Ji-Yeon ^{[2
]}

Kim, Joong-Kyoung ^{[3
]}

Oh, Yeon-Ho ^{[4
]}

Jung, Sang-Yong ^{[1
]}

Hahn, Sung-Chin ^{[1
]}

机构：

[1] Dong A Univ, Dept Elect Engn, Pusan 604714, South Korea

[2] HYOSUNG Corp, Transformer Technol Dev Team, Power & Ind Syst Performance Grp, Chang Won 641712, South Korea

[3] HYOSUNG Corp, R&D Ctr, Power & Ind Syst Performance Grp, Chang Won 641712, South Korea

[4] Korea Electrotechnol Res Inst, Power Apparat Res Ctr, Chang Won 641120, South Korea

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2011年 / 47卷 / 03期

关键词：

Electromagnetic force; finite-element method; power transformer; short-circuit current; short-circuit force;

D O I：

10.1109/TIA.2011.2126031

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Transient electromagnetic forces in radial and axial directions induce critical mechanical stress on windings and transformers. In this paper, short-circuit electromagnetic forces that are exerted on transformer windings are investigated. A 3-D transformer model is considered to calculate the transient electromagnetic forces. The magnetic vector potential, magnetic flux density, and electromagnetic forces due to the short-circuit transient currents applied to the power transformer are analyzed by a coupled electromechanical finite-element method. The results obtained are compared with the analytical results and show good agreement. The numerical modeling technique dealt with in this paper is expected to be useful in the design of power transformers.

引用

页码：1267 / 1272

页数：6

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