UMA NOVA PROPOSTA DE REDUÇÃO DE PERDAS REATIVAS NA TRANSMISSÃO BASEADA NAS CURVAS DE PERDAS VERSUS TENSÃO

Abstract

The objective of the proposed paper is theallocation of shunt capacitor and the setting of voltagemagnitude of generation buses seeking to the reactive powerlosses reduction in the transmission lines. Both, the value ofshunt reactive compensation to be allocated and the voltagemagnitude values of the generation buses to be adjusted aredetermined based on the curve of total transmission linereactive power losses versus bus voltage magnitude. Theindividual effects that each one of these procedures bringsfor the system are also investigated. Among the investigatedeffects are: the reduction in the total reactive power losses,the changes in the static voltage stability margin, and theimprovement of voltage profile. The results obtained for thesystem IEEE 14 bus show that the procedures lead to asensible reduction of reactive power losses in thetransmission lines and simultaneously, an improvement inthe voltage profile.Index Terms ⎯ Modal Analysis, Voltage Collapse, LossReduction, Maximum Loading Point.