Análisis del contenido armónico que producen los variadores de 6 pulsos en la industria y determinación de métodos de mitigación.

Abstract

In this work, a technical analysis of the use of 6-pulse variators in the industry is carried out, the harmonic content that they generate from the load to the point of common coupling (PCC) and the problems that they generate in the quality of the energy supplied by the distribution company did the rest of the industrial, commercial and residential loads. Electronic variators are non-linear loads that control the speed of large machinery in the industry, enabling industrial processes such as stone and granite crushing, mixing of polluting chemicals, etc. These equipments generate power quality problems since they introduce harmonic content of voltage and current (THDi and THDv). THDi: Total Harmonic Distortion of current (Distorsión Armónica Total de corriente). THDv: Total Harmonic Distortion of voltage (Distorsión Armónica total de voltaje). The industry has a significant number of 6-pulse variators for its different productions processes, with which the quality of energy has been declining and, given the existence of quality standards, companies have the obligations to carry out energy quality studies, energy to determine the harmonic content they are generating and find solutions to mitigate the generated harmonic content of both voltage and current. In the case of Ecuador, the mitigation of the harmonic content generated in the industry is governed by the regulation ARCERNNR 002/20 “Quality of the service of distribution and commercialization of electrical energy”.