Análisis de propagación y distorsión de armónicos en redes eléctricas de media tensión con cargas no lineales utilizando Matlab.

Abstract

The aim of this research is to present some of the results of the propagation and distortion of the harmonics that affect medium voltage networks through the Matlab application. Every company that is connected to the medium voltage network presents various problems for both electrical and electronic equipment, among some of these problems we have the heating of conductive wires, problems in the revolutions of rotary machines and although these machines maintain elements of protection, some non-sinusoidal harmonic denominations, they are able to modify operating frequencies and causing industrial damage There are different types of protection, however, when it comes to harmonics the problem is more serious. It is not enough to place a good grounding system because we have to consider all the parameters that influence the electric medium voltage mains, when it is in expansion and use systems that modify the frequency signal delivered by the distributor company. The Matlab application will be presented and exposed as part of the work with an introduction of all the parameters and functions of the same. A circuit with non-linear loads will be analyzed by means of this application, in order to be able to observe some of the harmonics existing in the nodes of the circuit to later give some form of protection against them and the type of connection of transformers to mitigate its effects.