Dynamic Modeling and Simulation of a Switched Reluctance Motor in a Series Hybrid Electric Vehicle

Dynamic behavior analysis of electric motors is required in order to accurately evaluate the performance, energy consumption and pollution level of hybrid electric vehicles. Simulation tools for hybrid electric vehicles are divided into steady state and dynamic models. Tools with steady-state models are useful for system-level analysis whereas tools that utilize dynamic models give in-depth information about the behavior of sublevel components. For the accurate prediction of hybrid electric vehicle performance, dynamic modeling of the motor and other components is necessary. Whereas the switched reluctance machine is well suited for electric and hybrid electric vehicles, due to the simple and rugged construction, low cost, and ability to operate over a wide speed range at constant power, in this paper dynamic performance of the switched reluctance motor for e series hybrid electric vehicles is investigated. For this purpose a switched reluctance motor with its electrical drive is modeld and simulated first, and then the other components of a series hybrid electric vehicle, such as battery, generator, internal combusion engine, and gearbox, are designed and linked with the electric motor. Finally a typical series hybrid electric vehicle is simulated for different drive cycles. The extensive simulation results show the dynamic performance of SRM, battery, fuel consumption, and emissions.