ELEKTRISK EFFEKTOMFORMERINDRETNING

An electric power conversion device includes a plurality of cell converters (20a to 20c) connected in cascade and including main circuits (3a to 3c), drive circuits (4a to 4c), and self-feeding devices (5a to 5c) for supplying power to the drive circuits (4a to 4c) by being supplied with power from...

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Bibliographische Detailangaben
Hauptverfasser:	TAMAI Shinzo, FUNAHASHI Sadao, HIGASHI Kotaro, KOYANAGI Kimiyuki, AZUMA Satoshi, JIMICHI Takushi, HOSOKAWA Yasuhiko
Format:	Patent
Sprache:	dan
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:	An electric power conversion device includes a plurality of cell converters (20a to 20c) connected in cascade and including main circuits (3a to 3c), drive circuits (4a to 4c), and self-feeding devices (5a to 5c) for supplying power to the drive circuits (4a to 4c) by being supplied with power from the main circuits (3a to 3c). The drive circuit (4a) is supplied with power via a first feed line (6a) from the self-feeding device (5a) in the corresponding cell converter (20a), and supplied with power from the self-feeding device (5c) in another cell converter (20c) via a second feed line (7c) on which an insulation input/output circuit (9c) is provided. When the self-feeding device (5a) is abnormal, the drive circuit (4a) is supplied with power from the self-feeding device (5c) in the other cell converter (20c), whereby the electric power conversion device continuously provides a desired output.