摘  要：介绍了矢量控制原理。采用改进的电压模型估算转子磁链位置，并模仿模型参考自适应系统构建两磁链模型PI闭环实现速度推算，最后采用DSP和IGBT实验平台，验证了采用该方法的异步电机控制系统具有良好的静态和动态性能。
关键词：矢量控制；电压模型；异步电机；无速度传感器；实验

Abstract: Presented a speed sensorless vector control method of induction motor based on the modified voltage model.Introduced the principle of vector control(rotor field oriented control).The modified voltage model rotor flux estimation was used.According to the model reference adaptive system,the speed estimation was realized by building PI closed-loop with two flux models.Finally,the experiments were conducted on the DSP & IGBT platform;the results show that the induction motor control system has good static and dynamic performance.
Key Words: Vector control;Voltage model;Induction motor;Speed sensorless；Experiment