Investigation of induction generator wide band vibration monitoring using fibre Bragg grating accelerometers

Author

Vilchis-Rodriguez, D.S. ; Djurovic, S. ; Kung, Peter ; Comanici, Maria Iulia ; Smith, A.C.

Author_Institution

Power Conversion Group, Univ. of Manchester, Manchester, UK

fYear

2014

fDate

2-5 Sept. 2014

Firstpage

1772

Lastpage

1778

Abstract

This paper investigates the use of fibre Bragg grating (FBG) accelerometers for wide band vibration monitoring in wound rotor induction generators. The sensor performance is assessed in a series of experiments on a laboratory test rig comprising a 30 kW induction machine operating in healthy conditions and with electrical or mechanical fault. Vibration measurements are processed and analyzed in the frequency domain for fault feature extraction. The fibre optic sensor effectiveness in measurement of wide band fault signatures in the vibration signal is compared with that of a commercial piezoelectric based solution. The potential and limitations of the investigated FBG accelerometer design are evaluated for use in condition monitoring applications.

Keywords

Bragg gratings; accelerometers; asynchronous machines; condition monitoring; electrical maintenance; fibre optic sensors; vibration measurement; fibre Bragg grating accelerometers; induction machine; power 30 kW; wide band vibration monitoring; wound rotor induction generator; Accelerometers; Circuit faults; Frequency measurement; Monitoring; Optical fibers; Vibration measurement; Vibrations; Condition monitoring; Fibre Bragg grating accelerometer; fault diagnosis; induction machine; optical fibre sensors; rotating machines; vibration measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Machines (ICEM), 2014 International Conference on

Conference_Location

Berlin

Type

conf

DOI

10.1109/ICELMACH.2014.6960423

Filename

6960423