Method for neutral-point balancing of a three-level inverter

The modulation factor (m) is continuously determined for each phase (u,v,w), and monitored in comparison with a modulation factor threshold (Sm). When a first threshold (UDCS1) is not reached or exceeded, and the modulation factor threshold is exceeded, the modulation factor is reduced by selecting...

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Bibliographische Detailangaben
Hauptverfasser:	GERHARD, BILAL, BEISER, DIRK, SARIO, PETTERI, HEROLD, SIMON
Format:	Patent
Sprache:	eng ; fre ; ger
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:	The modulation factor (m) is continuously determined for each phase (u,v,w), and monitored in comparison with a modulation factor threshold (Sm). When a first threshold (UDCS1) is not reached or exceeded, and the modulation factor threshold is exceeded, the modulation factor is reduced by selecting a sequence (PM) from a number of sequences, for a selectable time period.