Simulación de flujos de potencia con presencia de contenido armónico usando el método frecuencial

Abstract

This paper will address the conceptual issues related to the operation of power systems with harmonic content, both its causes and its effects within the daily operation in the electric power system (SEP). For the normal operation of an electrical power system, different electrical variables are analyzed, being one of the most relevant the harmonics of the system. In that sense, an inadequate harmonics mitigation can lead the electrical power system to a collapse, causing several harmful effects in the network equipment. The research work proposes the development of an application in Matlab for the calculation of power flows with the presence of harmonics, based on the harmonic spectrum that the elements possess; this allows the implementation of any non-linear load in the system and to observe which is the affectation that the system receives. For the validation of the program, two test systems are used and a comparative analysis with the results of the DIgSILENT PowerFactory software will be carried out. The first one is the IEEE 14-bar system subjected to components that introduce harmonics into the system in order to test the program; and the second one is a 2-bar system with non-linear loads.