Analysis of Harmonic Contamination at the Output of a 3kVA Hybrid Inverter

Abstract

This study examines harmonic pollution in the output of a 3kVA hybrid inverter, identifying the main sources of distortion and proposing solutions to mitigate its effects on the power system. The objective is to evaluate the power quality and propose improvements for optimal and reliable operation. The importance of controlling and reducing harmonic pollution to maintain the efficiency and reliability of the inverter and connected devices is emphasized. The research combines a theoretical and experimental approach with quantitative analysis and simulations, employing the methods of "Wave Recording" and passive filters. The results identified the sources of harmonic distortion under different load conditions, evaluated their impact on system efficiency and analyzed effective solutions, such as the use of tuned filters to minimize losses by 5 % to 6 % and the implementation of "Balanced Load" according to IEE Std 519.