Title :
Waveform supervision of power phase controlled rectifiers: a real time converter operation surveillance
Author :
Wiechmann, E.P. ; Garcia, A.R. ; Rodriguez, I.R. ; Amthauer, E.O. ; Sanchez, R.W.
Author_Institution :
Univ. of Concepcion, Chile
Abstract :
The concept of waveform supervision for power converters is analyzed. Overall system reliability is improved reducing the number of feedback signals required by conventional fault diagnosis units. Waveform supervision allows diagnosis of abnormal operation and fault. Detection is based on a real time error signal produced by comparison between real time simulated and acquired data. The error is compared with characteristic anomalous signal patterns to produce a diagnosis. The system offer accurate converter operation diagnosis. Experimental results obtained with a laboratory prototype are presented
Keywords :
computerised monitoring; failure analysis; fault location; feedback; power convertors; power engineering computing; real-time systems; rectifiers; reliability; anomalous signal patterns; computerised monitoring; error signal; fault diagnosis; feedback signals; phase controlled rectifiers; power converters; real time; reliability; waveform supervision;
Conference_Titel :
Power Electronics and Applications, 1993., Fifth European Conference on
Conference_Location :
Brighton
