Impact Analysis of Jeju Island Power System Considering Predicted Power demand of EV

Nowadays, the local government of Jeju Island has proceeded with an energy policy, named ‘Carbon Free Island Jeju by 2030’ to change fossil fuel to electric driven cars. However, the Jeju Island power system is an isolated power system which is connected to the main land by line-commutated converter (LCC) high voltage direct current transmission systems (HVDCs). Thus, the impact of the charging demand of EV must be considered in order to operate Jeju Island power system stably. From this perspective, this paper analyzed the future model of Jeju Island’s power system which included an EV charging load, a new thermal power plant and a modular multi-level converter (MMC) HVDC. The EV charging load was adopted by the results of advanced research which estimated EV charging loads in northern Europe. The simulation results of the Jeju Island power system were carried out by the PSCAD/EMTDC program.