Proceedings of the 2016 International Conference on Advanced Electronic Science and Technology (AEST 2016)

Effect of different forms of static air-gap eccentricity on stator magnetic pull per unit area of turbo-generator

Authors
Weiqi Deng, Yuling He, Guiji Tang, Yuchao Meng, Hao Zhong
Corresponding Author
Weiqi Deng
Available Online November 2016.
DOI
https://doi.org/10.2991/aest-16.2016.66How to use a DOI?
Keywords
stator air-gap eccentricity (SAGE); magnetic pull per unit area (MPPUA); turbo-generator; simulation calculation; fault diagnosis.
Abstract
This paper investigates the stator magnetic pull per unit area (MPPUA) and stator vibration characteristics under different static air-gap eccentricity (SAGE) forms of turbo-generator. Three types of SAGE, i.e. the rotor offset, the stator deformation, and the mixed one composed of the former two, are taken into account. Firstly, the MPPUA under different SAGE conditions are analyzed, based on which the formulas of the magnetic flux density (MFD) are deduced. Then the simulation study of a SDF-9 non-salient pole synchronous generator is taken with Ansoft Maxwell. It is shown that the SAGE will cause the stator vibration at 2f (f is the electrical frequency). The vibration amplitudes under rotor offset are larger than those under stator deformation. As SAGE develops, the vibration amplitudes rotor offset will all be increased, especially the 2nd harmonic vibration, while the vibration basically unchanged under stator ellipse deformation. The achievements are beneficial to the SAGE fault identification.
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Proceedings
2016 International Conference on Advanced Electronic Science and Technology (AEST 2016)
Part of series
Advances in Intelligent Systems Research
Publication Date
November 2016
ISBN
978-94-6252-257-2
ISSN
1951-6851
DOI
https://doi.org/10.2991/aest-16.2016.66How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Weiqi Deng
AU  - Yuling He
AU  - Guiji Tang
AU  - Yuchao Meng
AU  - Hao Zhong
PY  - 2016/11
DA  - 2016/11
TI  - Effect of different forms of static air-gap eccentricity on stator magnetic pull per unit area of turbo-generator
BT  - 2016 International Conference on Advanced Electronic Science and Technology (AEST 2016)
PB  - Atlantis Press
SN  - 1951-6851
UR  - https://doi.org/10.2991/aest-16.2016.66
DO  - https://doi.org/10.2991/aest-16.2016.66
ID  - Deng2016/11
ER  -