전기자동차 충전기와 운영시스템 간의 공통 프로토콜 추출에 관한 연구

Abstract

Among the various devices connected to the smart grid, electric vehicles take a very large part as a countermeasure. Many countries around the world are strategically spurring research and development of electric vehicles and are investing heavily to penetrating chargers which are essential for penetration of electric vehicles. Domestically, 25,108 electric vehicles and quick chargers of more than 1,000 units were penetrated until Dec. 2017. Communication and inlet/outlet connectors between cars and electric vehicle chargers are standardized in the current quick charging system while between quick chargers and upper operating systems are not. In this study the current status of electric vehicle charging infrastructure was examined, and common charging process and essential data were extracted by comparing and analyzing the protocols of the Ministry of Environment, Korea Electric Power Corporation(KEPCO) and GS Caltex. Consequently, a common charging process and common essential data between quick chargers and upper operating systems were proposed through this paper. As quick charging infrastructure is being spread, charging service companies need to share essential data such as amount of contemporary and accumulated electricity with the power network operator. Since the power grid is an essential public infrastructure of the country, the charging data must be managed systematically and stored at the national level. The common charging process and the common essential data proposed through this study can be utilized in for charging service companies to construct new charging systems and in controlling nationally the charging data.