POWER CONVERSION DEVICE

A power conversion device that can eliminate an input DC capacitor, and can decrease a withstand voltage of switches connected in series without any trouble is provided. Each phase arm 2 formed by connecting chopper cells 3 in series, and divided into upper and lower arms 21, 22 is connected to a DC...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FUJITA, Takashi, ISHIZUKI, Teruyuki, IIO, Naotaka, HASEGAWA, Ryuta, SUZUKI, Daichi
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:	A power conversion device that can eliminate an input DC capacitor, and can decrease a withstand voltage of switches connected in series without any trouble is provided. Each phase arm 2 formed by connecting chopper cells 3 in series, and divided into upper and lower arms 21, 22 is connected to a DC power supply via first and fourth switches at both ends of the phase arm. Second and third switches 42 and 43 in parallel with the phase arm 2 are connected in series between the first and fourth switches 41, 44. An output terminal 23 is provided between the upper and lower arms 21, 22, a neutral-point 5 is provided between the second and third switches 42, 43, and the neutral-points 5 in respective phases are connected with each other. The neutral-point 5 is connected via a reactor 7.