Demonstration of smart charging interface in Green Campus

In this paper, a description of a smart charging interface in an actual smart grid environment is presented. In addition, some results of controlled smart charging events are shown. The smart charging interface in Green Campus Smart Grid allows handling and controlling multiple electric vehicles (EVs) within the campus area based on information from the EVs and other sources. Furthermore, the interface is uniformed to allow connection of different types of loads and generation units. With the information gathered by the interfaces, the smart charging system is able to form a charging window for the connected EVs and is also capable to perform power and energy balancing with the mobile energy storages which the EVs provide. In addition, the connected EVs can be used as a backup power if the EVs are suitable for V2G (vehicle to grid). The data connection between the EVs and the charging pole is implemented with power line communication (PLC) and the charging poles are connected to the smart charging system with Ethernet.