Combined converter, direct current transformer and control method

The invention provides a combined converter, a direct current transformer and a control method. The combined current converter comprises at least one combined module, wherein the combined module comprises a direct current port and an alternating current port, and the combined module comprises at lea...

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Hauptverfasser:	YANG CHEN, GOU JIANMIN, QI QI, XIE YEYUAN, ZHANG ZHONGFENG, WANG YU, GE JIAN
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 combined converter, a direct current transformer and a control method. The combined current converter comprises at least one combined module, wherein the combined module comprises a direct current port and an alternating current port, and the combined module comprises at least one of a first combined module, a second combined module and a third combined module; the first combined module comprises a first commutation chain or/and a second commutation chain or/and a third commutation chain, the first commutation chain is connected in parallel between the DC ports, any node in the first commutation chain is led out to be connected with the second commutation chain and then is connected with one end of the AC port, and the other node in the first commutation chain is connected with the other end of the AC port directly or through a third commutation chain; the second combined module comprises two or three bridge arms, the midpoints of the bridge arms are led out and connected with the AC