ELECTRIC POWER CONVERSION SYSTEM

PROBLEM TO BE SOLVED: To provide an electric power conversion system capable of achieving size and cost reductions even with a step-up function for converting an AC voltage into a first DC voltage and a step-down function for converting a first DC voltage into a second DC voltage.SOLUTION: An AC app...

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Hauptverfasser:	MATSUO HIROBUMI, INAKAGATA SATORU
Format:	Patent
Sprache:	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:	PROBLEM TO BE SOLVED: To provide an electric power conversion system capable of achieving size and cost reductions even with a step-up function for converting an AC voltage into a first DC voltage and a step-down function for converting a first DC voltage into a second DC voltage.SOLUTION: An AC apparatus Kac is connected through an AC cable way W1 derived from an AC-DC conversion section 2 side, from inductors L21, L22. An impedance control section 11, when the AC-DC conversion section 2 converts a DC voltage V1 to an AC voltage Vac, increases impedance of the inductor L22 and increases impedance of a filter section 1 more than when the AC-DC conversion section 2 converts an AC voltage Vac to a DC voltage V1.