电动汽车中感应电动机控制系统设计

Control System Design of Induction Motor Used in Electric Vehicle

针对电动汽车用感应电动机控制系统进行设计,采用基于前馈解耦的矢量控制方案。提出了一种基于转子磁链q轴分量校正转子磁场定向的控制策略,以提高转矩控制精度和动态响应。从硬件和软件方面分别对感应电动机转矩控制系统进行了设计。通过仿真和实验对提出的转矩控制策略进行测试和验证。

The control system of induction motor used in electric vehicle was designed, and the feed-forward decoupiing vector control strategy was adopted. Rotor flux orientation correction strategy was proposed based on q-axis component of rotor flux, improving the torque control accuracy and dynamic response. Then, the hardware units and software units of torque controller of induction motor were achieved. The torque control strategy was tested and demonstrated by the simulation and experiments.