[1] Huang Xueliang*, Hu Minqiang,. Study on Electromagnetic Force and Vibration ofTurbogenerator End Windings under Impact Load(Ⅰ):Analysis of Electromagnetic Force of End Windings under Impact Load [J]. Journal of Southeast University (English Edition), 2002, 18 (1): 59-63. [doi:10.3969/j.issn.1003-7985.2002.01.011]

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Study on Electromagnetic Force and Vibration ofTurbogenerator End Windings under Impact Load(Ⅰ):Analysis of Electromagnetic Force of End Windings under Impact Load()

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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

18

Issue:

2002 1

Page:

59-63

Research Field:

Electrical Engineering

Publishing date:

2002-03-30

Info

Title:

Study on Electromagnetic Force and Vibration ofTurbogenerator End Windings under Impact Load(Ⅰ):Analysis of Electromagnetic Force of End Windings under Impact Load

Author(s):

Huang Xueliang^*;  Hu Minqiang

Department of Electrical Engineering, Southeast University, Nanjing 210096, China

Keywords:

turbogenerator;  transient eddy current field;  impact load;  electromagnetic force;  electromagnetic vibration

PACS:

TM311

DOI:

10.3969/j.issn.1003-7985.2002.01.011

Abstract:

In this paper, the boundary value problem(BVP)of 3-D transient eddy current field in the end region in the case that the generator is affected by impact load is specified. Besides, ways to implement discrete methods in both time domain and space domain during the solution of the problem are investigated. The Crank-Nicolson scheme is utilized to attain the iterative format of time differential, after taking factors that can ensure both computation precision and stability into consideration. In this paper, the magnetic distribution in the end region of a turbogenerator in the case that the generator is affected by impact load is specified. As a result, it provides foundation for further study of electromagnetic force and electromagnetic vibration in the end region of the turbogenerator.

References:

[1] Zhou Keding. Numerical calculation theory and application of engineering electromagnetic field[M]. Beijing: High Education Press, 1994.(in Chinese)
[2] Huang Xueliang. Research on the eddy current electromagnetic field in the end region of turbogenerator and on factors which affects the field[J]. Transactions of China Electrotechnical Society, 1996, 11(2):1-6.(in Chinese)
[3] Lavers J D. Electromagnetic field computation in power engineering[J]. IEEE Trans on MAG, 1993, 29(6):2347-2352.
[4] Zhou E. Solution of 3D eddy current electromagnetic fields and losses in the end region of turbogenerator[A]. In: Chen Yongxiao ed. Proceedings of the 2nd Chinese International Conference on Electrical Machines[C]. Beijing: International Academic Press, 1995.674-677.
[5] Hu Minqiang. Analysis of the complex variational problem of low frequency electromagnetic field[J]. Transactions of China Electrotechnical Society, 1998, 13(3):27-29.(in Chinese)
[6] Celozz1 S, Feliziani M. Time domain finite element simulation of conductive regions[J]. IEEE Trans on MAG, 1993, 29(2):1705-1710.

Memo

Memo:

* Born in 1969, male, associate professor.

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