10kW rapid-charger for electric vehicle considering vehicle to grid(V2G)

Abstract

Because of the quantity of demand power depends on the power consumption of power demands on the loads, the utility grid has to secure a supply of electric energy which is larger than the required power consumption under peak loadcondition. It means that the waste of electric power could be heavy at the other time than peak-load period. To avoid the waste of power, a 10kW rapid-charger system which has a function of load compensation at the peak-load condition is proposed in this paper. At the peak-load condition, the rapid charger transfer charged energy in the battery of electric vehicle to the grid. The 10kW rapid-charger for electric vehicle is comprised of the threephase AC-DC PWM converter and isolated bidirectional DC-DC converter. Proposed V2G operation is verified through simulation experiment performed by 10kW rapid-charger. Keywords-battery charger; electric vehicle; vehicle to grid; energy storage systemI.

Comprehensive review of battery charger structures of EVs and HEVs for levels 1–3

“…[80][81][82] Both AC and DC have driven the charger structure developments that use bidirectional topologies that allow the implementation of algorithms to control the charging and discharging flow of batteries. [83][84][85][86][87][88]…”

“…However, the possibility of connecting vehicle to grid (V2G), grid to vehicle (G2V), and vehicle to home (V2H) for integration with other alternative energy sources such as solar photovoltaic and wind power systems 80–82 . Both AC and DC have driven the charger structure developments that use bidirectional topologies that allow the implementation of algorithms to control the charging and discharging flow of batteries 83–88 …”