Análise dos indicadores de qualidade de energia elétrica no IFPE Campus Garanhuns

Abstract

In this paper, an analysis is presented of the electric power quality at IFPE Garanhuns Campus, which has a specific load profile related to its academic purpose and, in parallel, a photovoltaic plant installed in its internal grid. To carry out the study, field measurements were taken that gathered data on load, voltage, power, harmonics, generation, power factor, and frequency. Analysis of these data enabled an assessment of power quality on the campus, the identification of limit violations with respect to current standards, and a detailed description of the operation of the electrical installations, including the photovoltaic plant. For the data analysis, Module 8 of the Procedures for the Distribution of Electric Energy (PRODIST) in the National Electric System, published by the National Electric Energy Agency (ANEEL), which addresses the quality of energy supply in distribution systems, was taken as a reference. The indicators of long-duration voltage variation, power factor, harmonic distortions, voltage imbalance, and frequency variation were analyzed. The data analysis revealed the presence of violations of the campus’s power-quality standards, including voltage variations, low power factor, and harmonic distortions. Therefore, the study demonstrated the importance of evaluating power quality in installations with distributed generation, as is the case at IFPE Garanhuns. The outcomes can serve as groundwork for implementing measures aimed at enhancing the campus electrical system, ensuring the quality of electric power supply. Furthermore, the study contributes to the advancement of knowledge in the field of power quality, especially in the context of educational institutions with distributed generation