无速度传感器控制系统中感应电机参数离线辨识

为了提高感应电机无速度传感器控制系统的性能,基于迭代算法通过改进的直流实验、单相实验辨识感应电机参数。辨识过程由系统自动完成,无需速度反馈。信号处理采用了离散快速傅立叶变换(DFFT)。通过该方法对电机参数计算值与堵转、空载实验所测参数值比较,结果表明该方法是有效的。

In order to improve the performance of speed sensorless induction motor system,the parameters of induction motor are identified by improved DC experiment and single-phase experiment based on iterative algorithm.The identification process is completed automatically by the system and does not require speed feedback.Discrete Fast Fourier Transform (DFFT) is used in signal processing.By comparing the calculated values of motor parameters with those measured by clogging and no-load experiments,the results show that the method is effective.