FILTER CAPACITOR DEGRADATION DETECTION APPARATUS AND METHOD

FILTER CAPACITOR DEGRADATION DETECTION APPARATUS AND METHOD

Power conversion systems and methods are presented for detecting input filter capacitor degradation or approach of end of operational life based on filter capacitor current measurements using single and/or dual threshold comparisons for computed instantaneous sum of squares of filter currents or pow...

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Bibliographische Detailangaben
Hauptverfasser: WEI, LIXIANG, PATEL, YOGESH POPATLAL, KERKMAN, RUSSEL J
Format: Patent
Sprache:eng ; fre
Schlagworte:
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
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Beschreibung
Zusammenfassung:Power conversion systems and methods are presented for detecting input filter capacitor degradation or approach of end of operational life based on filter capacitor current measurements using single and/or dual threshold comparisons for computed instantaneous sum of squares of filter currents or power values. Des systèmes de conversion de puissance et les méthodes connexes sont présentés pour détecter la dégradation dun condensateur de filtrage dentrée ou lapproche de sa fin de vie utile daprès les mesures actuelles du condensateur de filtrage au moyen dun et/ou de deux seuils de comparaison pour obtenir la somme calculée instantanément des carrés des courants du filtre ou les valeurs de puissance.