异步电机矢量控制系统仿真研究

Simulation study on the vector control system of asynchronous motor

目的给矢量控制的异步电机工程设计提供理论依据及必要的系统参数。方法根据异步电机三相坐标系下数学模型,运用转子磁场定向矢量控制原理,在MATLAB/SIMULINK平台上搭建了异步电机矢量控制仿真模型。结果仿真结果表明,该矢量控制系统能迅速响应负载转矩变化,具有良好的动静态性能。结论异步电机矢量控制系统结构简单,控制精度高,可满足实际工程中交流调速的高性能要求。

Aim To provide theoretical basis and system parameters for the engineering design of the vector control system of asynchronous motor. Methods According to the mathematical model of the three-phase asynchronous motor in the coordinate system, the rotor field-oriented vector control principle is use to build the vector control simulation model of asynchronous motor in MATLAB/SIM- ULINK simulation platform. Results The simulation results show that the vector control system can not only quickly response to the variation of the load torque but also have good dynamic and static per- formance. Conclusion Asynchronous motor vector control system features simple structure, high control precision, so it can satisfy the high performance requirements of AC speed regulation in practi- cal engineering.