"Resource Planning and a Depot Location Model For Electric Power Restoration"
European Journal of Operational Research,
Vol. 155, pp. 22-43, 2004.
by Shaojun Wang, Bhaba R. Sarker, Lawrence Mann, Jr.,
and Evangelos Triantaphyllou
The purpose of this research is to develop a depot location model
to manage the resources needed for efficient and economic power
restoration in an area which has experienced an outage.
Determining the optimal number of depots, optimal location of
depots, and the optimal number of repair crews and/or equipment
is of significant importance in power restoration operations. The
problem is studied on two levels: first, the general problem
simultaneously locates depots and determines the amount of the
resources to be shipped from the depots to each point in order to
minimize the total transportation cost. The second problem adds
new depots to an area where depots already exist. This decision-
making is a trade-off between whether or not it is necessary to
establish new depots. The mathematical models for both cases are
developed on an incremental basis as the problems become complex
and new scenarios become apparent. An optimal solution strategy
is presented following each problem. The results show that the
optimal model can be used by power restoration management. For a
large size problem, a heuristic can help the analysts/planners
obtain an approximate optimal solution. In this investigation, a
two-phase heuristic for the depot location is developed. Some
computational results are discussed for both optimal and
Power restoration, depot location, linear integer programming,
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