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GENERAL DISTRIBUTED CONTROL METHOD FOR MULTI-MICROGRIDS WITH PQ CONTROL AND DROOP CONTROL

  • US 20190074691A1
  • Filed: 12/16/2016
  • Published: 03/07/2019
  • Est. Priority Date: 09/27/2016
  • Status: Active Grant
First Claim
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1. A general distributed control method for multi-microgrids with PQ control and droop control, wherein the multi-microgrids comprise m droop-controlled distributed power supply clusters and n PQ-controlled distributed power supply clusters;

  • a multi-agent system is responsible for the control and mutual information interaction of the distributed power supplies in the multi-microgrids, each distributed power supply is corresponding to one agent, and the number of the distributed power supplies is the same as the number of the agents corresponding to the distributed power supplies;

    wherein, part of the agents are pinned and controlled, while other agents are tracked and synchronized in a distributed manner through communication coupling with the pinned agents; and

    the control method comprises the following steps of;

    step 10) conducting primary control to maintain the power balance of the multi-microgrids;

    step 20) determining predefined group consensus values of the pinned agents;

    step 30) the pinned agent in each DG-cluster pins other existing agents through the communication coupling between them and seeks synchronization of these predefined group consensus values; and

    step 40) adjusting output powers to complete secondary control.

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