Stator Vibration Characteristic Identification of Turbogenerator among Single and Composite Faults Composed of Static Air-Gap Eccentricity and Rotor Interturn Short Circuit
Joint Authors
He, Yu-Ling
Tang, Gui-Ji
Deng, Wei-Qi
Wan, Shu-Ting
Peng, Bo
Ke, Meng-Qiang
Liu, Xiang-Yu
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-10-16
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
This paper investigates the radial stator vibration characteristics of turbogenerator under the static air-gap eccentricity (SAGE) fault, the rotor interturn short circuit (RISC) fault, and the composite faults (CFs) composed of SAGE and RISC, respectively.
Firstly, the impact of the faulty types on the magnetic flux density (MFD) is analyzed, based on which the detailed expressions of the magnetic pull per unit area (MPPUA) on the stator under different performing conditions are deduced.
Then, numerical FEM simulations based on Ansoft and an experimental study are carried out, taking the SDF-9 type fault simulating generator as the study object.
It is shown that SAGE will increase the stator vibration at 2f (f is the electrical frequency) which already exists even in normal condition, while RISC and CF will bring in stator vibrations at f, 2f, 3f, and 4f at the same time.
The vibration amplitudes under CF are larger than those under RISC.
As SAGE increases, the vibration amplitudes of each harmonic component under CF will all be increased, while the development of RISC will decrease the 2nd harmonic vibration but meanwhile increase the 4th harmonic vibration.
The achievements of this paper are beneficial for fault identification and condition monitoring of the turbogenerator.
American Psychological Association (APA)
He, Yu-Ling& Deng, Wei-Qi& Peng, Bo& Ke, Meng-Qiang& Tang, Gui-Ji& Wan, Shu-Ting…[et al.]. 2016. Stator Vibration Characteristic Identification of Turbogenerator among Single and Composite Faults Composed of Static Air-Gap Eccentricity and Rotor Interturn Short Circuit. Shock and Vibration،Vol. 2016, no. 2016, pp.1-14.
https://search.emarefa.net/detail/BIM-1119412
Modern Language Association (MLA)
He, Yu-Ling…[et al.]. Stator Vibration Characteristic Identification of Turbogenerator among Single and Composite Faults Composed of Static Air-Gap Eccentricity and Rotor Interturn Short Circuit. Shock and Vibration No. 2016 (2016), pp.1-14.
https://search.emarefa.net/detail/BIM-1119412
American Medical Association (AMA)
He, Yu-Ling& Deng, Wei-Qi& Peng, Bo& Ke, Meng-Qiang& Tang, Gui-Ji& Wan, Shu-Ting…[et al.]. Stator Vibration Characteristic Identification of Turbogenerator among Single and Composite Faults Composed of Static Air-Gap Eccentricity and Rotor Interturn Short Circuit. Shock and Vibration. 2016. Vol. 2016, no. 2016, pp.1-14.
https://search.emarefa.net/detail/BIM-1119412
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1119412