Influence of End Structure on Electromagnetic Forces on End Winding of a 1550 MW Nuclear Generator

IF 0.9 Q4 ENGINEERING, MECHANICAL

International Journal of Rotating Machinery Pub Date : 2017-10-29 DOI:10.1155/2017/9545238

C. Zeng, Song-bo Huang, Y. Yongming, Guang-hou Zhou

引用次数: 4

Abstract

A 3D electromagnetic model of the end region of a 1550 MW nuclear generator is set up. The electromagnetic forces on the involute and nose parts of the end winding under a rated operation are obtained through the 3D time-step finite element method. The electromagnetic forces on different coils in the same phase are analyzed. By changing the rotor’s relative length and stator coil’s linear length in the 3D electromagnetic model, the electromagnetic force distributions on the end winding are obtained. The influence of each structure change on the electromagnetic force in different directions is studied in detail. Conclusions that can be helpful in decreasing the electromagnetic forces on the end winding through optimizing the end region design are presented.

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1550mw核电机组端面结构对端面绕组电磁力的影响

建立了1550mw核电机组端区的三维电磁模型。通过三维时间步长有限元法得到了额定工况下端面绕组渐开线部和端头部的电磁力。分析了同一相位不同线圈上的电磁力。通过在三维电磁模型中改变转子的相对长度和定子线圈的线长，得到了端面绕组上的电磁力分布。详细研究了各结构变化对不同方向电磁力的影响。提出了通过优化端区设计来减小端面绕组电磁力的结论。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Rotating Machinery ENGINEERING, MECHANICAL-

CiteScore

2.40

自引率

0.00%

发文量

审稿时长

25 weeks

期刊介绍： This comprehensive journal provides the latest information on rotating machines and machine elements. This technology has become essential to many industrial processes, including gas-, steam-, water-, or wind-driven turbines at power generation systems, and in food processing, automobile and airplane engines, heating, refrigeration, air conditioning, and chemical or petroleum refining. In spite of the importance of rotating machinery and the huge financial resources involved in the industry, only a few publications distribute research and development information on the prime movers. This journal is the first source to combine the technology, as it applies to all of these specialties, previously scattered throughout literature.