Analysis and control of offboard bidirectional plug - in electric vehicle (PEV) charger for vehicle to grid operation
This paper presents an analysis of off board bidirectional Plug in Electric Vehicle (PEV) Charger. Since, normally, the control command for such chargers are given in terms of desired real and reactive power, a model of the system is formulated directly in terms of these variables. A detailed steady state analysis of the system is presented for the entire possible range of operation and for a given battery state of charge (SOC) rather than selecting points of operation a priori. This result shows the various possibilities of the system and informs further structural studies of the system and the design of controllers to meet the desired control objectives.
Keywords: Battery charger, electric vehicle, natural variables, vehicle to grid