基于Z源逆变器的电动汽车电机驱动系统

Electric Vehicle Motor Drive System Based on Z-source Inverter

Z源逆变器因其特有的结构和可以升压降压的特性,可以应用于各类性能要求高的场合。文章以电动汽车中Z源逆变器驱动的电动机的驱动为背景,达到减小电感和电流的波纹的目的,也可以进一步避免损伤逆变器电子器件。在电机快速运行状态下,由于Z源网络母线电压的升高,所以电动汽车的各类性能得到提升;低速时,Z源网络母线电压被降低和稳定,这促进了电动汽车的各类性能的进一步优化。

Z-Source Inverter can be used in all kinds of high performance situations because of its unique structure and the characteristics of voltage rise and voltage reduction. In order to reduce the ripple of inductance and current, this paper takes the drive of electric motor driven by Z-source inverter as the background, and can further avoid the damage of inverter electronic devices. When the motor is running fast, the bus voltage of the Z-source network is increased, so the performance of the EV is improved. At low speed, the bus voltage of the Z-source network is reduced and stabilized. This promotes the further optimization of all kinds of performance of the electric vehicle.