Simulador de controle de tensão da área Goiás/Brasília

Abstract

The constant expansion process of the National Interconnected System (SIN), originated by the socioeconomic development of Brazil, provides dynamism to the mode of operation of the electric power transmission system, so that solutions implemented in the past may have their effectiveness diminished over time due to changes in the energy scenario. Of the consequences caused by these changes, the dip in the voltage profile in buses bordering the electricity distribution system stands out. The voltage control carried out by the SIN operation centers aims to maintain the voltage at acceptable levels at all times in the system. The effectiveness of voltage control during disturbances in the electrical system or in severe load conditions is strongly associated with the sectorial reactive support capacity. The voltage control simulator for the Goiás/Brasília area, developed on the Matlab® platform using Matpower®, allows an analysis with emphasis on the effects generated by the maneuverable voltage control shunt equipment – reactors and capacitors – in the system. Through the Chu-Beasley genetic algorithm, the simulator is able to suggest the optimized configuration of the elements so that the bars operate with tension equal to or very close to 1 pu. The performance of simulations allows the previous verification of the effectiveness of the maneuvers to control the desired voltage in the integrated operation with the other equipment of the SIN.