Simulation, Analysis and Fabrication of Bi-Directional Converter for Vehicle to Grid Interface

Abstract

The concept of Vehicle to Grid (V2G) can be used in electric vehicles to provide electric power to grid while vehicle is parked. The stored energy in the battery and power converters in the Electric Vehicle (EV) can produce AC voltage that can be used to power homes or small electrical loads. While charging the EV battery, converter will work in Grid to Vehicle (G2V) mode & While injecting battery power to the grid it will work in V2G mode. V2G technology has great advantage in terms of peak power, spinning reserves and voltage regulation. V2G could be a technology that enables electrical energy hold on within the electrical vehicle batteries to be came to the grid throughout peak demand. V2G can even provide reactive power compensation and distributed generation. This necessitates that an electrical vehicle charger to be bi-directional, capable of sinking or sourcing power. Bi-directional Power Converter based on direct-quadrature (dq) axis control strategy is presented in this paper. The system simulation model is established based on MATLAB/Simulink; Hardwarein- Loop (HIL) results are verified using the Opal-RT 4510 simulator with RT-LAB & Hardware prototype using the C2000 MCU is presented in this report. Results evaluate the effectiveness of the model and the performance of the applied control strategy.