ENERGY STORAGE AND SEMICONDUCTOR RELATED SELECTION OF CELLS IN MODULAR MULTILEVEL POWER CONVERTERS AND COMPUTER PROGRAM

The invention is related to the energy storage and semiconductor related selection of cells of a modular multilevel power converter, which comprises in each of one or multiple converter branches a plurality of cells which are connected in series, wherein each cell is repeatedly switched within regul...

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Bibliographische Detailangaben
Hauptverfasser:	LISERRE, Marco, LANGWASSER, Marius, ANDRESEN, Markus, HAHN, Frederik
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 invention is related to the energy storage and semiconductor related selection of cells of a modular multilevel power converter, which comprises in each of one or multiple converter branches a plurality of cells which are connected in series, wherein each cell is repeatedly switched within regular or irregular time intervals into an inserted state, in which the cell is actively inserted in the converter branch or a bypassed state, in which the cell is inactive, characterized in that at least one strain parameter of an energy storage component of each of the cells, which is not the energy storage state or a quantity which characterizes the energy storage state of the energy storage component, is balanced among the cells of a converter branch by generating signals for commanding either the inserted state or the bypassed state for each cell of the converter branch by means of a strain parameter balancing algorithm.