Coordination of Spatially Distributed Electric Vehicle Charging for Voltage Rise and Voltage Unbalance Mitigation in Networks with Solar Penetration

Abstract

This paper proposes a decentralised control strategy using droop-based control to generate a charging schedule for electric vehicles (EV). This strategy aims to mitigate voltage rise caused by rooftop photovoltaic (PV) systems and phase unbalance caused by unbalance loads in a low-voltage distribution (LV) network. The strategy also smooths the voltage profile of the network and reduces variation between the maximum and minimum voltages. A modified IEEE 13 node test feeder with an LV network based on a semi-rural Australian town was used to show the impacts of PV and EV charging in the network and verify the proposed strategy.