Investigação dos índices harmônicos na empresa Stemac e simulação computacional com vistas à construção de filtro ativo.

Abstract

This paper presents a case study on the quality of electrical energy at Stemac Grupo Geradores, a company located in Itumbiara that specializes in the sale and technical assistance of generators. An electrical energy and power quality analyzer was connected to the company's main feeder, allowing for the collection of electrical signals for a week. The study aims to analyze these signals using mathematical techniques in the field of electrical engineering to identify any disturbances present in the network and propose solutions to mitigate them. The results of the analysis will indicate whether the use of an active filter is a viable option for improving the quality of electrical energy at the company. Active filters are becoming increasingly popular as a solution to improving the quality of the electrical system, and this paper will describe their operation, advantages, and reasons for their growing use. Additionally, harmonic indices will be analyzed and computer simulations will be carried out in order to construct an active filter capable of meeting the requirements set by the National Electric Energy Agency with regard to electrical levels. This study is expected to contribute to the improvement of the quality of electrical energy at Stemac Grupo Geradores and help other companies in the industry tackle similar problems.