Bi-directional multilevel AC-DC converter arrangements

The present invention relates to a converter arrangement that includes at least one converter phase module (2a). The converter phase module (2a) is used to connect an ac line (AC1) of an ac network to transmission lines (DC1,DC2) that can be used for high-voltage direct current (HVDC) power transmis...

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Bibliographische Detailangaben
1. Verfasser:	ZHAN, CHANGJIANG
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 present invention relates to a converter arrangement that includes at least one converter phase module (2a). The converter phase module (2a) is used to connect an ac line (AC1) of an ac network to transmission lines (DC1,DC2) that can be used for high-voltage direct current (HVDC) power transmission. The converter phase module (2a) includes a series of interconnected converter section module (4 1 ,4 2 ...4 n ). Each converter section module includes a DC/DC converter unit (6) and a DC/AC converter unit (8) connected to the DC/AC converter unit by a dc link (10). The AC/DC converters (8 1 ,8 2 ...8 n ) of the converter section modules are interconnected in series and operate is a cascade mode. The DC/DC converters (6 1 ,6 2 ...6 n ) of the converter section modules can be interconnected in series or parallel.