A microprocessor-based fault monitor for rotating rectifiers of brushless ac exciters using a pattern-recognition approach

Author

Li, Xing-Yuan

Author_Institution

Chengdu Univ. of Sci. & Technol., China

fYear

1994

fDate

10-12 May 1994

Firstpage

394

Abstract

A microprocessor-based fault monitor for rotating rectifiers of brushless ac exciters using a pattern-recognition approach is presented in this paper. The features of the frequency spectrum of the voltage waveform induced in a search coil plated in the stator slots of the brushless ac exciter are used in pattern recognition. Based on these features a classifier is designed using the nearest-neighbour rules. A prototype of the microprocessor-based fault monitor has been built. Studies show that the fault monitor can accurately recognize the various classes of faults of the rotating rectifier of the brushless ac exciter

Keywords

automatic test equipment; automatic testing; computerised monitoring; exciters; fault location; machine testing; pattern recognition; rectifiers; synchronous machines; waveform analysis; brushless ac exciters; classifier design; frequency spectrum; microprocessor-based fault monitor; nearest-neighbour rules; pattern-recognition; rotating rectifiers; search coil; search strategy; stator slots; voltage waveform; Circuit faults; Coils; Diodes; Frequency; Monitoring; Pattern recognition; Power harmonic filters; Rectifiers; Stators; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Instrumentation and Measurement Technology Conference, 1994. IMTC/94. Conference Proceedings. 10th Anniversary. Advanced Technologies in I & M., 1994 IEEE

Conference_Location

Hamamatsu

Print_ISBN

0-7803-1880-3

Type

conf

DOI

10.1109/IMTC.1994.352041

Filename

352041