This study evaluates the fast EV chargeable capacity under the voltage constraints in MV and LV distribution networks by considering the spatial distribution of fast EV charging. The equalization factor of the spatial distribution is defined as the percentage of the EV chargeable capacity in the equally maximizing case over that in the simply maximizing case. The equalization factor is about 35% without rooftop PVs; however, using active and reactive power output from rooftop PVs, the equalization factor is improved to about 70%. The distribution line current, which increased due to the reactive power flow, is below the maximum allowable current limit. However, operational margins for the distribution network must be investigated in future widespread EV conditions.
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