Direct current conversion system and control method thereof

The invention provides a DC conversion system and a control method thereof, and the system comprises an upper power module group which comprises at least two first power modules; a lower power module group which comprises at least two second power modules, wherein the input end of the upper power mo...

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Bibliographische Detailangaben
Hauptverfasser:	ZHOU PIAN, XIAO HONGWEI, LIU TENG, ZHANG YI
Format:	Patent
Sprache:	chi ; eng
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 provides a DC conversion system and a control method thereof, and the system comprises an upper power module group which comprises at least two first power modules; a lower power module group which comprises at least two second power modules, wherein the input end of the upper power module group and the input end of the lower power module group are connected in series, and the output end of the upper power module group and the output end of the lower power module group are connected in parallel; and a controller which is coupled to the upper power module group and the lower power module group, wherein the controller receives and generates a modulation signal according to the input voltage of the input end of each first power module and the input voltage of the input end of each second power module, the first output current of the output end of the upper power module group, the second output current of the output end of the lower power module group and a total output signal of the output end of t