The Application of Extended CIM in Electric-Vehicle’s Charging-Discharging System

In order to ensure the safety and efficiency of electric-vehicle’s charging-discharging, and control the charging-discharging process according to the electric grid’s condition, multiple applications and systems have been developed for monitoring and managing the EV’s charging-discharging. All of these systems are required for EV charging-discharging data support, so it becomes quite an urgent problem that how to share and exchange EV’s charging-discharging information between different systems. To solve this problem, this paper applies IEC61970 CIM to EV charging-discharging system, extends the CIM to cover all the EV charging-discharging facilities. And then a data center of EV charging-discharging has been developed based on the extended CIM to provide charging-discharging data for other systems through CIS service. The research of this paper provides a unified information model for efficient monitoring and management of EV’s charging-discharging as well as integration of related systems and applications.