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Optimal Placement and Sizing of Distributed Energy Generation in an Electrical Network Using the Hybrid Algorithm of Bee Colonies and Newton Raphson

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Document pages: 15 pages

Abstract: Distributedgeneration (DG) is gaining in importance due to the growing demand forelectrical energy and the key role it plays in reducing actual energy losses,lowering operating costs and improving voltage stability. In this paper, wepropose to inject distributed power generation into a distribution system whileminimizing active energy losses. This injection should be done at a grid node(which is a point where energy can be injected into or recovered from the grid)that will be considered the optimal node when total active losses in the radialdistribution system are minimal. The focus is on meeting energy demand usingrenewable energy sources. The main criterion is the minimization of activeenergy losses during injection. The method used is the algorithm of bee colony(ABC) associated with Newtonian energy flow transfer equations. The method hasbeen implemented in MATLAB for optimal node search in IEEE 14, 33 and 57 nodesnetworks. The active energy loss results of this hybrid algorithm were comparedwith the results of previous searches. This comparison shows that the proposedalgorithm allows to have reduced losses with the power injected that we havefound.

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