Two Output Zsource Inverter for Direct Torque Control of Two IM in Fuel Cell Hybrid Vehicle

In this paper combination of battery, ultra capacitor and fuel cell are used to feed induction motor which used in hybrid vehicle. Fast dynamic response is one of the critical criteria in hybrid vehicles. So in this paper Direct Torque Control (DTC) method has been used. Fuel cell can solve some of electrical vehicle problems but large variation of fuel cell output voltage can derange DTC. In this paper an accurate fuel cell dynamic model has been extract and effect of important parameters such as temperature and pressure have been analyzed. The proposed structure for hybrid vehicle has cold start capability. Also in order to increase efficiency and controllability, two induction motors are used in vehicle which a common inverter is used to drive them.Finally hybrid vehicle has been tested in standard driving cycle which results show ability of proposed structure and control method.