AC/DC matrix converters for V2G applications

Due to the problems of battery voltage adaptation and power-volume ratio and system efficiency of the pulse width modulation (PWM) voltage source rectifier (VSR) in vehicle to grid (V2G) systems, this paper presents a solution based on AC/DC matrix converter topology for the V2G. Against the characteristic of relatively large charging current ripple in the classical current space vector modulation strategy, a sectional optimized modulation strategy that can reduce the charging current ripple within the whole output range was proposed. The comparative analysis was made between the classical current space vector modulation strategy and the proposed strategy. The simulation and experimental results demonstrate the validity and effectiveness of the proposed sectional optimized modulation strategy. © 2013 Chin. Soc. for Elec. Eng.