Abstract:

Electric Vehicles (EVs) constitute the future of the sustainable mobility for  contemporary society deeply concerned about the environmental and health issues derived from the utilization of fossil fuel in the road transportation sector. This paper proposes a new topology of electrical vehicle fast charging station based on a multiterminal DC-link arrangement but using the same power electronic devices of the conventional ones. Each terminal is connected to different LV feeders in such a way that the electrical vehicle charge can be shared between the upstream secondary substations. In addition, the multiterminal DC link is able to contribute to the LV voltage regulation by adequate reactive power injections. The proposal has been experimentally validated on a scaled-down system which mimics the main properties of an actual LV distribution system. The results have revealed that the proposal has achieved a grid-friendly integration of EVCS within the distribution system even with a communication infrastructure with large remote measurements latencies.