Comparação de Procedimentos para a Agregação Temporal dos Ângulos de Fase das Componentes Harmônicas

The increasing connection of non-linear equipment has led to the intensification of harmonics in electrical systems. In this way, procedures for calculating the distortions by Power Quality (PQ) meters have been established in technical standards. However, current standards only present methodologies for aggregating the amplitudes of harmonic voltages and currents, not establishing procedures for obtaining the phase angles. On the other hand, these angles are used in studies of harmonic flow and sharing of responsibilities. Therefore, methods for aggregating the phase angles of harmonic components are proposed in the literature. In addition, some PQ meters make this quantity available without standardization or detailing the calculations. Thus, this work aims to investigate the methodologies for aggregating the harmonic components' phase angles to observe the differences and impacts such results can bring in studies that use these quantities. Therefore, amplitudes and harmonic phase angle calculations were implemented computationally according to current standards and methods proposed in the literature. Then, voltage and current waveforms of loads with different harmonic contributions were measured in the laboratory. Those measurements were input into the computational meter for comparison and analysis.