【摘要】 针对基于直接转矩控制的感应电动机调速系统低速运转时由定子电阻变化引起的转速静差问题 ,提出一种自适应模糊控制方法。首先给出定子电阻变化量的模糊估计器和感应电动机直接转矩控制的模糊实现 ,在此基础上提出自适应模糊控制方案。仿真实验表明 ,该方案能够解决调速系统在低速范围内的静差问题更多还原

【Abstract】 Due to the variation of stator resistance in a speed regulating system of induction motor based on direct torque control, static speed error is produced in low speed. A fuzzy estimator of stator resistance variation and a fuzzy adaptive controller based on direct torque control are designed. Then an adaptive fuzzy control scheme is proposed. Simulation results show that a great improvement in speed accuracy can be achieved.更多还原