Alternative Generation of the Output Voltage Waveform in an Asymmetric Transformer-Based Cascaded Multilevel Inverter under Fault Conditions

This paper introduces a method for the reconfiguration of a transformer-based cascaded multilevel inverter (CT-MLI), which allows the use of alternative switching patterns when individual inverter stages cease to operate as a result of a failure in the circuit switches. Different possibilities of re...

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Bibliographic Details
Published in:	Mathematics (Basel) Vol. 10; no. 19; p. 3463
Main Authors:	Inostroza-Osses, Mauricio A., López-Santos, Oswaldo, Aldana-Rodríguez, Yeison A., Forero, Manuel G.
Format:	Journal Article
Language:	English
Published:	Basel MDPI AG 01-10-2022
Subjects:	Asymmetry automatic reconfiguration Circuits Control algorithms Electric fault location Electric inverters Electric potential Fault tolerance fault tolerant operation Food science Inverters Methods multilevel inverters Power supply Ratios Reconfiguration Semiconductors Signal processing Switches Switching transformer-based cascade multilevel inverters Transformers Voltage Waveforms Chile
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Summary:	This paper introduces a method for the reconfiguration of a transformer-based cascaded multilevel inverter (CT-MLI), which allows the use of alternative switching patterns when individual inverter stages cease to operate as a result of a failure in the circuit switches. Different possibilities of reconfiguration of the inverter stages to provide the output voltage signal are analyzed and optimal switching patterns are determined. The results obtained from the simulation in the PSIM software are provided to validate the proposal.
ISSN:	2227-7390 2227-7390
DOI:	10.3390/math10193463