Investigation on Eccentric Fault Degree Identification of Turbo-Generator Based on Stator Vibration Characteristics

HE Yuling;WAN Shuting;TANG Guiji;XIANG Ling

Journal of Vibration and Shock ›› 2012, Vol. 31 ›› Issue (22) : 53-57.

PDF(1192 KB)
PDF(1192 KB)
Journal of Vibration and Shock ›› 2012, Vol. 31 ›› Issue (22) : 53-57.
论文

Investigation on Eccentric Fault Degree Identification of Turbo-Generator Based on Stator Vibration Characteristics

  • HE Yuling, WAN Shuting, TANG Guiji, XIANG Ling
Author information +
History +

Abstract

An eccentric fault degree identification method of turbo-generator based on the stator vibration comparison between the pass-bend intensity and some specific component’s amplitudes is presented in this paper. The influential vibration factors of the stator and the rotor are firstly analyzed and compared to demonstrate the feasibility of the proposed method. It is found that the stator vibration is mostly affected by those faults which influence the magnetic flux density, such as air gap eccentricity. Then the stator vibration characteristics under the normal condition and the eccentric faults are deduced, and meanwhile the specific identification method is proposed. Finally experiment verification is taken on a SDF-9 fault simulating generator. It is shown that the eccentric fault degree can be objectively identified by the presented method. Through the achievements obtained in this paper, a new thought and reference which have active meaning for the generator fault degree identification is offered.

Key words

Turbo-Generator / Air Gap Eccentricity / Stator Vibration Characteristics / Fault Degree Identification

Cite this article

Download Citations
HE Yuling;WAN Shuting;TANG Guiji;XIANG Ling. Investigation on Eccentric Fault Degree Identification of Turbo-Generator Based on Stator Vibration Characteristics[J]. Journal of Vibration and Shock, 2012, 31(22): 53-57
PDF(1192 KB)

Accesses

Citation

Detail

Sections
Recommended

/