Applications of Wavelet-Packet in Fault Analysis of Hydroelectric Sets

Author

Haiying, Liu ; Luping, Dai

Author_Institution

Coll. of Electr. & Electron. Eng., Wuhan Inst. of Technol., Wuhan, China

fYear

2010

fDate

25-27 June 2010

Firstpage

495

Lastpage

497

Abstract

This paper presents a new method using wavelet packet transform to fault diagnosis of the hydroelectric generating. The use of wavelet packet analysis unit to achieve multi-level vibration signals of wavelet packet decomposition, the analysis provides a favorable means of the high-frequency signals that may exist in fault signal detection and identifications. Computer simulation shows that this signal analysis method is very effective for hydro-generator unit vibration fault diagnosis.

Keywords

fault diagnosis; hydroelectric generators; wavelet transforms; fault analysis; fault identifications; fault signal detection; high-frequency signals; hydro-generator unit; hydroelectric generation; hydroelectric sets; multilevel vibration signals; signal analysis method; vibration fault diagnosis; wavelet packet analysis unit; wavelet packet decomposition; wavelet packet transform; Fault diagnosis; Time frequency analysis; Wavelet analysis; Wavelet domain; Wavelet packets; fault diagnosis; hydroelectric generating sets; wavelet packet;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical and Control Engineering (ICECE), 2010 International Conference on

Conference_Location

Wuhan

Print_ISBN

978-1-4244-6880-5

Type

conf

DOI

10.1109/iCECE.2010.127

Filename

5631584