Power conversion device having a control unit that outputs based on detected inductor current

The power conversion device may include a rectification unit, a boost converter for boosting power rectified from the rectification unit, a dc-end capacitor connected to an output end of the boost converter, an inductor current detection unit for detecting an inductor current flowing in an inductor...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Lee, Yonghwa, Kim, Kyeongtae, Oh, Jeongeon
Format:	Patent
Sprache:	eng
Schlagworte:	AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING 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 BASIC ELECTRIC ELEMENTS BLASTING CONTROL OR REGULATION THEREOF CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION HEATING INDUCTANCES LIGHTING MAGNETS MECHANICAL ENGINEERING RANGES SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES TRANSFORMERS VENTILATING WEAPONS
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Beschreibung
Zusammenfassung:	The power conversion device may include a rectification unit, a boost converter for boosting power rectified from the rectification unit, a dc-end capacitor connected to an output end of the boost converter, an inductor current detection unit for detecting an inductor current flowing in an inductor within the boost converter, a dc-end voltage detection unit for detecting voltages of both ends of the dc-end capacitor, and a control unit for controlling the boost converter. The control unit may generate and output a converter switching control signal by performing proportional resonant control for a duty command value of a switching element within the boost converter, based on the detected inductor current and dc-end voltage. Therefore, a harmonic current component flowing through a dc-end capacitor induced by a ripple component of an input voltage may be reduced.