摘要
本文针对以电驱动为主的混合动力汽车及电动汽车,采用了电机—变速器一体化的驱动系统,该系统具有整体效率高、成本低、结构简单等特点。同时,为了满足车辆行驶及换挡过程中的性能要求,电机控制采用了空间矢量调制的直接转矩控制(DTC-SVM)方法,具有响应快且脉动小等特点。另外,考虑到在复杂的车辆运行环境下,电机的控制性能可能受到影响,滑模控制也被引入到系统,并从理论上证明了系统的稳定性和鲁棒性。最后在此基础上建立了系统的仿真模型,仿真结果也进一步证明了控制方案的有效性。
A motor-gearbox directly coupled integrated powertrain for electric and hybrid vehicles is presented due to its high efficiency, reduced cost and simple structure. At the same time, a direct torque control with space vector modulation （DTC-SVM） technique is applied in the motor controller to meet the need of driving and shift performance. In order to adapt complicated driving environment and improve the robustness of the system, sliding mode-based torque and speed controllers are developed. The stability and robustness of the proposed controllers are analyzed. Computer simulations are performed to verify the effectiveness of the proposed control system. The simulation results illustrate that fast response and small ripples are achieved using the proposed control scheme. It is also shown that the control system is robust against load variations, measurement errors and parameter uncertainty. Therefore, the proposed control scheme is suitable for control of the propulsion motor for plug-in electric and hybrid vehicles.
出处
《汽车安全与节能学报》
CAS
2010年第1期59-66,共8页
Journal of Automotive Safety and Energy
基金
国家"八六三"高技术项目(2007AA11A13)
关键词
电动汽车
直接转矩控制(DTC)
滑模控制
永磁同步电机
electric vehicle
direct torque control
sliding mode control
permanent magnet synchronous motor
