Corrección del factor de potencia en micro-redes eléctricas ante el peligro de resonancia por alta penetración de cargas no lineales

Abstract

The present study allows us to analyze the technical impact on the electrical system due to the incorporation of power electronic devices, given that these elements introduce harmonics to electrical systems, the inclusions cause adverse effects both to the operation of the electrical system and to its elements. For this purpose, the implementation of DC motors has been used as loads in a 14-bar model electrical system, which is used for the analysis of the introduced harmonic percentages and their evaluation with the limits allowed by the IEEE 519 standard regulation on harmonics. Said analysis provides information necessary in the design of passive filters for the mitigation of harmonic content in the system, made up of inductive and capacitive reactances tuned to eliminate harmonic frequencies other than the fundamental one. Finally, the analysis is complemented with aspects related to the correction of the power factor, in view of the danger of resonance due to the penetration of nonlinear loads and thus avoid technical problems associated with the overheating of the elements, for the purpose of performing the study uses ATP and Power Factory simulators – DigSilent.