【摘要】 介绍了一种直接转子磁场定向无速度传感器的感应电机矢量控制系统。该系统使用定转子自适应磁通观测器和转速动态估计器来估算转子磁通和转速 ,有三个PI控制器分别控制转速、转矩和磁通的电流分量 ,输出电压空间矢量控制电机。仿真结果表明 ,该系统具有较好观测精度和鲁棒性 ,动态和稳态性能也较好。更多还原

【Abstract】 This paper introduces a vector control system based on direct rotor field oriented control for sensorless induction motor drive. Stator and rotor adaptive flux observer and speed dynamic estimator are used to estimate the flux and speed of the rotor and three PI controllers are supposed to control the speed and current of torque and flux, then produce the voltage space vector to control the motor. The simulation results demonstrate the good performance for the system in observation precision, robustness and dynamic and steady aspects.更多还原