DISTRIBUTED POWER SUPPLY SYSTEM, POWER CONVERTER DEVICE, AND METHOD OF CONTROLLING POWER FACTOR
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United States of America Patent
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Sep 12, 2016
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Dec 28, 2015
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A distributed power supply system includes a controller configured to control a power factor of a power converter device (inverter) such that the power factor has a predetermined constant value if reverse power flow from the power converter device (inverter) to a utility power grid is observed. If the controller determines, based on reverse power flow information acquired by a reverse power flow information acquirer, that reverse power flow from the power converter device (inverter) to the utility power grid is not observed, the controller controls the power factor of the power converter device (inverter) such that the power factor has a value closer to unity than the predetermined constant value is.
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