异步电机MRAS无速度传感器矢量控制系统设计

Asynchronous motor MRAS speed sensorless vector control research

根据异步电动机矢量控制原理,以两相旋转坐标系电流模型作为可调模型、改进的电压模型作为参考模型,构建无速度传感器矢量控制系统。采用模型参考自适应(MRAS,model reference adaptive system)方法对系统转速进行辨识。在Matlab/Simulink仿真环境和TMS320F2812DSP平台上进行实验研究。实验结果表明,所采取的方法能够实时对电机转速进行辨识和估算,使电机转速、电流闭环调速系统具有良好的动态特性。

According to the principle of asynchronous motor vector control, taking two phase rotating coordinates current model as the adjustable model and improved voltage model as reference model, a speed sensorless vector control system is built. The model reference adaptive system （MRAS） method is used to identify system speed. Experiments are made through the Matlab/Simulink and TMS320F2812DSP platform, The experimental results show the method can be used to identify and calculate motor speed in real-time making the motor speed and current closed loop speed regulation system goodin dynamic performance.