Power Sharing Strategy in Hybrid Microgrids with Charging Stations: Analysis of Voltage Fluctuation and Flicker Mitigation

Charging stations integrated with renewable energy sources can introduce voltage fluctuations and flicker into the grid. Accordingly, this work proposes a comprehensive analysis of this issue through a case study of a DC coupled to AC side hybrid microgrid, employing a sub-second timescale modeling approach. This work assess the grid voltage quality under intense charging daily demand, comparing a Power-Sharing Strategy (PSS) for DC-AC interlinking converter operating with and without an Energy Storage System (ESS). The results achieve a reduction in both grid voltage fluctuations and perceptible flickers, improving power quality of the AC distribution network.