Systems and Methods for Distributed Synchronization of Micro-grids with Multiple Points of Interconnection
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United States of America Patent
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Apr 4, 2019
app pub date -
Sep 29, 2017
filing date -
Sep 29, 2017
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Abstract
A distributed synchronization method for interconnecting a microgrid with adjacent power grids at multiple points of interconnections. Receiving a request to connect to the microgrid from a first identified adjacent power grid. Synchronization controllers for each generator of the microgrid identify the generator connecting to the point of common coupling between the microgrid and the first adjacent power grid, and assigns the generator as a leader generator. Determining a frequency synchronization correction and a voltage synchronization correction by the synchronization controller of the leader generator, from synchronization parameters received from the first adjacent power grid. Adjusting active and reactive outputs of the follower generators and the leader generator and connecting the first adjacent power grid with the microgrid when a set of predetermined thresholds are satisfied. Reassigning the leader generator as a follower generator after connecting the first adjacent power grid with the microgrid to iterating synchronize each remaining identified adjacent power grid.
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