Modeling and Simulation of Power System for Electric Vehicle

With the global energy crisis, the environmental problems become increasingly prominent, the traditional fuel vehicles have been unable to adapt to the requirements of the new era, while pure electric vehicles, which is clean and zero pollution, can be expected in the near future, which will replace the traditional fuel vehicles and become the main transport. Therefore, in recent years many research units have invested funds to develop pure electric vehicles, making pure electric vehicles have a rapid development. This paper mainly studies the dynamic system of pure electric vehicles. Based on the parameter selection and matching of motor, transmission structure and battery modeling design, a dynamic system model of electric vehicle with lithium iron phosphate battery as power source and permanent magnet synchronous motor as power conversion device was established. Finally, the dynamic system model is simulated and analyzed in terms of acceleration performance, climbing performance, maximum speed and driving range. The results show that the model of pure electric vehicle dynamic system is feasible.