Detection of eccentricity in inverter-fed induction machines using wavelet analysis of the stator current

Author

Georgakopoulos, Ilias P. ; Mitronikas, Epaminondas D. ; Safacas, Athanasios N. ; Tsoumas, Ioannis P.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. OF PATRAS, Rio

fYear

2008

fDate

15-19 June 2008

Firstpage

487

Lastpage

492

Abstract

This paper presents a method for the detection of eccentricity in inverter-fed induction machines, based on wavelet analysis of the stator phase current. The Continuous Wavelet Transform (CWT) is used for the detection of specific frequency components that indicate eccentricity faults in a machine. More specifically, the modulus information of CWT is used for the extraction of the "faulty" frequency components. The obtained simulation and experimental results confirm the ability of the proposed technique to accurately identify the "faulty" harmonic components of the stator phase current due to eccentricity in asynchronous machines.

Keywords

asynchronous machines; invertors; stators; wavelet transforms; asynchronous machines; continuous wavelet transform; eccentricity detection; eccentricity faults; faulty frequency components; faulty harmonic components; inverter-fed induction machines; modulus information; stator phase current; wavelet analysis; Continuous wavelet transforms; Data mining; Fault detection; Fault diagnosis; Frequency; Induction machines; Phase detection; Stators; Wavelet analysis; Wavelet transforms;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics Specialists Conference, 2008. PESC 2008. IEEE

Conference_Location

Rhodes

ISSN

0275-9306

Print_ISBN

978-1-4244-1667-7

Electronic_ISBN

0275-9306

Type

conf

DOI

10.1109/PESC.2008.4591976

Filename

4591976