According to an aspect of the present invention, provided is a distributed power-connected microgrid system capable of supplying and selling generated power to a system during uninterrupted power, and supplying the generated power to a load during a power outage. The distributed power-connected microgrid system comprises: a first power generation device generating power to be sold to a system; and an automatic switch device selectively connecting the first power generation device to the system or a load in accordance with whether a power outage occurs. The automatic switch device connects the first power generation device to the system during the uninterrupted power so that the power generated by the first power generation device is supplied to the system, and the first power generation device is connected to the load to supply the power generated by the first power generation device to the load during the power outage.;COPYRIGHT KIPO 2020
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