【摘要】 本文结合一种具有较好观测精度和鲁棒性的PI自适应法速度观测器和一种改进的电压模型磁通观测器 ,构造一个无速度传感器的转子磁通定向异步电动机矢量控制系统 ,最后介绍了该系统的全数字化实现。仿真和实验结果证明该系统具有很好的转矩、转速特性和鲁棒性。更多还原

【Abstract】 Combined with a novel PI adaptive speed estimator,which has good steady precision and robustness,and a modified voltage model flux observer,a speed sensor less field oriented control(FOC)system for induction motor is presented.Then,the digital implementation of the system is introduced.The simulation and experiment results show the good performance for the system in torque,speed and robustness.更多还原