Avaliação do Método IEC para Compartilhamento de Responsabilidades Harmônicas utilizando o IEEE Benchmark Test System

This article aims to analyze the IEC Method for determining harmonic contributions using simulations on the IEEE Benchmark Test System for Harmonic Contribution Determination Studies proposed by the IEEE PES. The approach to calculating the IEC method considering the voltage measurements at the point of common coupling (PCC) before and after connecting the customer has been applied to the test system. The results are presented in percentages of the contributions using the Modified IEC Method and compared to the Superposition Method, which is used as a reference due to its strong theoretical foundation. The results show some limitations of the IEC Method, especially when the impedance of the customer installation and the impedance of the utility system have the same order of magnitude at a given harmonic order.