DISTRIBUTED POWER SYSTEM AND OPERATION METHOD
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United States of America Patent
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Issued Date -
May 28, 2015
app pub date -
Jul 22, 2013
filing date -
Jul 26, 2012
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Abstract
A distributed power system is designed to continuously supply electric power to a load even when a system voltage of the electric power system becomes abnormal. The distributed power system includes a DC/DC converter to convert DC current generated by solar power generation facility to DC current with a predetermined output voltage, and an inverter to convert the DC current to an AC current which is output to an electric power system via a system interconnect switch. When the system voltage of the electric power system is abnormal, a control device makes the system interconnect switch open to switch operation modes of the DC/DC converter and inverter to a self-sustaining operation without stopping, and supplies electric power to a load connected between the inverter and the system interconnect switch.
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