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Optimal mix and placement of energy storage systems in power distribution networks for reduced outage costs

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3 Author(s)
Gantz, J.M. ; Electr. & Comput. Eng. Dept., Univ. of Minnesota, Minneapolis, MN, USA ; Amin, S.M. ; Giacomoni, A.M.

As energy infrastructure is upgraded to meet modern digital society's need for secure and high-quality electric power, grid-tied energy storage systems are becoming a viable means for improving system reliability and realizing the benefits of Smart Grid. This paper investigates the optimal implementation of distributed storage resources in a power distribution system or islanded microgrid in conjunction with an intelligent load shedding scheme to minimize the societal costs of blackouts. First, a non-linear combinatorial optimization problem for prioritizing outage ride-through service is formulated and a solution methodology is proposed that combines a local search heuristic with simulated annealing. Next, a resource allocation optimization problem is developed to determine the optimal mix and placement of energy storage resources in a power distribution network for intentional islanding of sectionalizable sub-networks. Simulations are performed on the IEEE 123 node test feeder model subject to realistic power system constraints.

Published in:

Energy Conversion Congress and Exposition (ECCE), 2012 IEEE

Date of Conference:

15-20 Sept. 2012