| dc.description.abstract | The predicted increase in electricity demand from electrification of the transportation sector has led to research of bidirectional \gls{EV} chargers becoming an ever more popular research topic. With bidirectional chargers, power can more efficiently be transferred to \gls{EV} batteries, as well as allowing energy to be transferred back to the grid or to power the household the \gls{EV} is connected to during peak load hours. \gls{EV} chargers of the conventional type, are typically unidirectional and thus lacking the necessary technology for bidirectional flow of current. This thesis will investigate several rectifiers and control schemes with the intent to propose an appropriate system capable of being implemented in a bidirectional \gls{EV} charger. A voltage-oriented controlled active front-end rectifier is derived to fulfill this goal. A model of the system is simulated in MATLAB Simulink in various load conditions to test the response of the controller. The simulation results show that the system is capable of transitioning from rectification during a resistive load to inversion during a regenerative load. The system is also shown to be capable of withstanding increased load, in both directions, over the intended application. A prototype is designed for the purpose of verifying the simulated results. | |
