POWER CONVERSION DEVICE AND METHOD OF DRIVING THE SAME

A power conversion device includes: a first DC-DC converter configured to receive a first power from a first DC power source and to convert at least one of a voltage level and a current level to generate a first converted power; a DC-AC inverter electrically coupled to the first DC-DC converter and...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Stanislav Prykhodko, Han Sangtaek
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 CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	A power conversion device includes: a first DC-DC converter configured to receive a first power from a first DC power source and to convert at least one of a voltage level and a current level to generate a first converted power; a DC-AC inverter electrically coupled to the first DC-DC converter and configured to convert the first converted power into a first AC power and to provide the first AC power to an external device; and a control unit configured to control the first DC-DC converter and the DC-AC inverter, wherein the first DC-DC converter and the DC-AC inverter are configured to be driven according to pulse width modulation (PWM) scheme using a first carrier frequency and a DC-AC carrier frequency, respectively, wherein a level of the first carrier frequency and a level of the DC-AC carrier frequency are determined according to predetermined time periods.