2002 · 304 citations · 8 references
EngineeringElectrical EngineeringKnowledge CaptureKnowledge RepresentationPower ElectronicsDiagnosisDiagnosticsFault DetectionFault DiagnosisFault IsolationFault ModelingFault Diagnosis In Power ConvertersInput VariablesInverter Fault DiagnosisInverter SystemsKnowledge-based Fault DetectionKnowledge-based Fault DiagnosisPower Electronics Fault DiagnosisSystem Diagnosis
This paper presents an approach based on knowledge models to detect and localize faults in a PWM inverter supplying a synchronous machine. These faults don't affect the system protection. A diagnostic system which uses only the input variables of the drive is presented. It is based on the analysis of the current vector trajectory and of the instantaneous frequency in faulty mode. These two methods have been successfully applied to an experimental system.
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