ALTERNATOR TESTING METHOD AND SYSTEM USING RIPPLE DETECTION

A method and system for evaluating the operation of an alternator based on a frequency component in the alternator output signal. The method comprises detecting a frequency component of the alternator output signal, comparing t he frequency component of the alternator output signal with a threshold...

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Bibliographische Detailangaben
Hauptverfasser:	BROTT, ALEJANDRO P, FAEHNRICH, RICHARD J, GOETZELMANN, ALAN D, THIBEDEAU, DENNIS G, WILLEMS, PAUL A
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A method and system for evaluating the operation of an alternator based on a frequency component in the alternator output signal. The method comprises detecting a frequency component of the alternator output signal, comparing t he frequency component of the alternator output signal with a threshold frequency, and evaluating the operation of the alternator based on a result of the comparison. If the frequency component of the alternator output signal i s lower than the threshold frequency, the alternator is determined as defectiv e. The frequency component can be obtained by comparing the alternator output signal with an adaptive threshold. The adaptive threshold is generated based on the peak signal level and the valley signal level of the alternator outpu t signal, such as the average of the peak signal level and valley signal level .