IEEE Transactions on Power Delivery · 2020 · 55 citations · 6 references
EngineeringElectrical EngineeringFault-tolerant ComputingFault-tolerant SystemsPower ElectronicsAc-dc ConvertersDc-ac InvertersDc-dc ConvertersFault DetectionFault DiagnosisFault ManagementCommutation ControlFault AnalysisFault Diagnosis In Power ConvertersPower Electronics Fault Diagnosis
This letter analyzes the mechanism of commutation failures (CFs) caused by sending end AC faults. It is founded that the dc impulse current after fault clearance is the direct reason of CF occurring under nonserious sending end AC faults, and the controller interaction is the main reason of CF occurring under severe sending end AC faults. Moreover, a prevention strategy is proposed based on the revealed mechanism, and the validity is verified by the simulation results.
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