Simplified Models To Determine Nodal Voltagesin Problems Of Optimal Allocation Of Capacitor Banks In Power Distribution Networks release_vyavcxj3rzeijkkqtl2btwv2vu

by A. Pereira, S. Haffner, L. V. Gasperin

Published by Zenodo.

2008  

Abstract

This paper presents two simplified models to determine nodal voltages in power distribution networks. These models allow estimating the impact of the installation of reactive power compensations equipments like fixed or switched capacitor banks. The procedure used to develop the models is similar to the procedure used to develop linear power flow models of transmission lines, which have been widely used in optimization problems of operation planning and system expansion. The steady state non-linear load flow equations are approximated by linear equations relating the voltage amplitude and currents. The approximations of the linear equations are based on the high relationship between line resistance and line reactance (ratio R/X), which is valid for power distribution networks. The performance and accuracy of the models are evaluated through comparisons with the exact results obtained from the solution of the load flow using two test networks: a hypothetical network with 23 nodes and a real network with 217 nodes.
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Date   2008-04-25
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