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Keywords
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Circuit optimization, distributed power generation,
power distribution economics, power distribution lines,
power system planning, optimization methods.
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Abstract
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Power distribution planning (PDP) approaches are
evolving to new models and methods by introduction of smart
grids. Distribution system is divided into two levels: medium
voltage (MV) as primary network and low voltage (LV) as
secondary network. In PDP, to have a comprehensive view,
costs of primary and secondary networks must be considered
coordinately. The PDP problem is exacerbated incorporating
distributed generators (DG). In this paper, a single cost function is
proposed, which comprises of costs of LV feeders, MV substations
(MVS), MV distributed generators, MV feeders and high voltage
substations (HVS); imperialist competitive algorithm (ICA) is
utilized to minimize the cost function; and a greenfield network
is planned for a long-term period. Results show that in PDP
problem, incorporated with DG, it is required to coordinately
plan the primary and the secondary network.
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