A Multiobjective Approach to Multimicrogrid System Design

The main goal of this paper is to design a market operator (MO) and a distribution network operator (DNO) for a network of microgrids in consideration of multiple objectives. This is a high-level design and only those microgrids with nondispatchable renewable energy sources are considered. For a pow...

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Bibliographic Details
Published in:IEEE transactions on smart grid 2015-09, Vol.6 (5), p.2263-2272
Main Authors: Wei-Yu Chiu, Hongjian Sun, Vincent Poor, H.
Format: Article
Language:English
Subjects:
Distribution network operator (DNO)
Energy storage
ISO
Linear programming
market operator (MO)
Microgrids
multimicrogrid design
multiobjective approach
Optimization
Pareto optimality
Pareto optimization
Pareto optimum
smart grid
System analysis and design
utility maximization
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Summary:The main goal of this paper is to design a market operator (MO) and a distribution network operator (DNO) for a network of microgrids in consideration of multiple objectives. This is a high-level design and only those microgrids with nondispatchable renewable energy sources are considered. For a power grid in the network, the net value derived from providing power to the network must be maximized. For a microgrid, it is desirable to maximize the net gain derived from consuming the received power. Finally, for an independent system operator, stored energy levels at microgrids must be maintained as close as possible to storage capacity to secure network emergency operation. To achieve these objectives, a multiobjective approach is proposed. The price signal generated by the MO and power distributed by the DNO are assigned based on a Pareto optimal solution of a multiobjective optimization problem. By using the proposed approach, a fair scheme that does not advantage one particular objective can be attained. Simulations are provided to validate the proposed methodology.
ISSN:1949-3053
1949-3061
DOI:10.1109/TSG.2015.2399497