Journal
IEEE TRANSACTIONS ON POWER SYSTEMS
Volume 25, Issue 4, Pages 1883-1891Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPWRS.2010.2045773
Keywords
Distributed generation; gradient descent method; microgrid; potential function; secondary control
Categories
Funding
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- Mathematics of Information Technology and Complex Systems (MITACS)
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This paper introduces the potential-function based method for secondary (as well as tertiary) control of a microgrid, in both islanded and grid-connected modes. A potential function is defined for each controllable unit of the microgrid such that the minimum of the potential function corresponds to the control goal. The dynamic set points are updated, using communication within the microgrid. The proposed potential function method is applied for the secondary voltage control of two microgrids with single and multiple feeders. Both islanded and grid-connected modes are investigated. The studies are conducted in the time-domain, using the PSCAD/EMTDC software environment. The study results demonstrate feasibility of the proposed potential function method and viability of the secondary voltage control method for a microgrid.
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