Control method and apparatus for power supply connected in parallel

A control method and apparatus are provided in the present invention. The invention is used in a power supply connected in parallel that contains at least two power supplies. The control method provides a virtual impedance for the power supplies to increase the output impedance of these power suppli...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JIANG, SHIUAN-JANG, BAI, FU-SHENG, TSAI, WEN-YIN
Format:	Patent
Sprache:	eng
Schlagworte:	CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION SYSTEMS FOR STORING ELECTRIC ENERGY
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Beschreibung
Zusammenfassung:	A control method and apparatus are provided in the present invention. The invention is used in a power supply connected in parallel that contains at least two power supplies. The control method provides a virtual impedance for the power supplies to increase the output impedance of these power supplies when connected in parallel, so as to make these power supplies capable of being directly connected in parallel without the need of using a connected reactor. In addition, by adjusting one output voltage reference level of these power supplies, each power supply is controlled to have the same real power output.