Robust Scheduling of Networked Microgrids for Economics and Resilience Improvement

Guodong Liu, Thomas B. Ollis, Maximiliano F. Ferrari, Aditya Sundararajan and Kevin Tomsovic
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Guodong Liu: Grid Components & Control Group, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
Thomas B. Ollis: Grid Components & Control Group, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
Maximiliano F. Ferrari: Grid Components & Control Group, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
Aditya Sundararajan: Grid Components & Control Group, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
Kevin Tomsovic: Department of Electrical Engineering and Computer Science, The University of Tennessee, Knoxville, TN 37996, USA

Energies, 2022, vol. 15, issue 6, 1-19

Abstract: The benefits of networked microgrids in terms of economics and resilience are investigated and validated in this work. Considering the stochastic unintentional islanding conditions and conventional forecast errors of both renewable generation and loads, a two-stage adaptive robust optimization is proposed to minimize the total operating cost of networked microgrids in the worst scenario of the modeled uncertainties. By coordinating the dispatch of distributed energy resources (DERs) and responsive demand among networked microgrids, the total operating cost is minimized, which includes the start-up and shut-down cost of distributed generators (DGs), the operation and maintenance (O&M) cost of DGs, the cost of buying/selling power from/to the utility grid, the degradation cost of energy storage systems (ESSs), and the cost associated with load shedding. The proposed optimization is solved with the column and constraint generation (C&CG) algorithm. The results of case studies demonstrate the advantages of networked microgrids over independent microgrids in terms of reducing total operating cost and improving the resilience of power supply.

Keywords: robust optimization; networked microgrids; uncertainty; economics; resilience (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (8)

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