Electrical power quality and microgrids

This book evaluates the impact on the quality of electrical power produced by the interconnection of a microgrid to a power system. Matlab and real-time simulation were used as tools to carry out the study, applying the national and international power quality standards IEEE 1547 of 2018, IEEE 519 of 2014 and NTC 5001 of 2008. The procedure and methodology employed for the microgrid study has reference value for power quality assessment of microgrids in the future. This is important, taking into account that it is necessary to perform a power quality study to evaluate the conditions of the electrical network before the interconnection of distributed generation or microgrids, which introduce a new challenge in maintaining the network in optimal operating conditions. The phenomena of voltage harmonics, current harmonics, flicker and DC injection are evaluated on a micro grid case study. The results show that the interconnection of the microgrid produces a high impact on current harmonics and DC injection.