Influence of Metal Screen Materials on 3-D Electromagnetic Field and Eddy Current Loss in the End Region of Turbogenerator

被引：27
|
作者：
Wang, Likun [1 ]
Huo, Feiyang [2 ]
Li, Weili [2 ]
Zhang, Yihuang [2 ]
Li, Qing [3 ]
Li, Yong [3 ]
Guan, Chunwei [4 ]
机构：
[1] Harbin Univ Sci & Technol, Coll Elect & Elect Engn, Harbin 150080, Peoples R China
[2] Beijing Jiaotong Univ, Sch Elect Engn, Beijing 100044, Peoples R China
[3] Beijing BEIZHONG Steam Turbine Generator Co Ltd, Beijing 100040, Peoples R China
[4] Harbin Inst Technol, Harbin 150001, Peoples R China
来源：
IEEE TRANSACTIONS ON MAGNETICS | 2013年 / 49卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Eddy current; electromagnetic field; end region; loss; turbogenerator; WINDINGS;
D O I：
10.1109/TMAG.2012.2212026
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：
Since the structure of a large capacity turbogenerator is complex in the end region, accurate calculation about the leakage magnetic field becomes a key factor in the design. In this paper, a 330-MW level turbogenerator is electromagnetically analyzed and investigated with different metal screens in the end region. Its nonlinear transient electromagnetic field and eddy current loss were calculated by using the time step finite-element method (FEM). The influences of metal screen materials on the electromagnetic field and eddy current loss were compared and analyzed. All of these will contribute to the turbogenerator engineering design. Using the loss gained by the magnetic field calculation as a heat source, the thermal field of the end region with a copper screen was calculated. Compared with the test data, the calculated temperature results match well with the measured data.
引用
收藏
页码：939 / 945
页数：7
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