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Control device for distributed generators

  • US 9,671,842 B2
  • Filed: 06/28/2013
  • Issued: 06/06/2017
  • Est. Priority Date: 09/27/2012
  • Status: Active Grant
First Claim
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1. A control device for a plurality of distributed generators connected to a main grid, the control device comprising:

  • a load power measuring unit measuring power consumption of loads connected to the plurality of distributed generators;

    a distributed generator power measuring unit measuring power output from the plurality of distributed generators;

    a power flow reference value determining unit determining a power flow reference value of a power line connected to the main grid based on the power consumption and the power output from the plurality of distributed generators; and

    a mode control unit changing an operation mode of at least one of the plurality of distributed generators such that a flow power of the power line connected to the main grid maintains the power flow reference value,wherein the plurality of distributed generators operate in a first mode in which the flow power of the power line is constantly maintained, or in a second mode in which the power output from the plurality of distributed generators are constantly maintained, andwherein, when the determined power flow reference value exceeds a maximum value, the power flow reference value determining unit changes the power flow reference value to the maximum value.

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