Analysis and comparison of single inverter driven series hybrid system

This paper proposes and analyzes the novel single inverter driven series hybrid system. Conventional series hybrid power transfer system features the high-efficiency thanks to the variable torque and speed operation of the internal combustion engine. The increment in cost is, however, still remained as a hurdle. The proposed single inverter driven series hybrid structure reduces two high power inverters into one with low current rating. It also does not require rigid power transferring parts such as axles and enables flexible configuration. This paper presents the comparison of the proposed system with conventional parallel and series hybrid system. The characteristics of the electric system which uses single inverter are also analyzed. The feasibility and operation of the proposed structure are verified through the simulation.