交互式模型参考自适应PMSM速度辨识  

Speed Identification of Permanent Magnet Synchronous Motor Based on MRAS

作　　者：佘致廷[1] 袁俊波[1] 郑勇[1] 彭永进[1] 

机构地区：[1]湖南大学电气与信息工程学院,湖南长沙410082

出　　处：《电气传动》2011年第3期3-7,共5页Electric Drive

基　　金：国家自然基金面上项目(60874096)

摘　　要：提出了一种基于矢量控制的交互式模型参考自适应永磁同步电机无速度传感器控制方案。该方案利用静止α-β坐标系下的基于电压模型的反电动势估计值和基于磁链模型的反电动势估计值之差作为误差信号,交互式的构成对定子电阻辨识和转子转速辨识的自适应律,实现定子电阻和转速的估计,解决了因电机参数变化所影响速度辨识精度的问题。仿真和实验研究结果表明,带定子电阻在线辨识的交互式模型参考自适应控制系统,提高了转速辨识精度,改善了永磁同步电机无速度传感器矢量控制系统的动静态性能。A method of mutual model reference adaptive system （MRAS） permanent magnet synchronous motor （PMSM） sensor-less control was proposed based on vector control. It only needs the error signal of back- EMF estimation between the voltage model and the magnet flux model under static α-β coordination to form adaptive law interactively for identifying stator resistance and rotor speed, and this method can solve the problem of speed estimation accuracy under the influence of motor parameter variation. The results of simulations and experiments show that mutual model reference adaptive system with speed identification on-line raises the accuracy of speed identification and improves the dynamic and static performance of PMSM sensor-less vector control system.

关 键 词：永磁同步电机 无速度传感器矢量控制 交互式模型参考自适应 参数辨识 

分 类 号：TM341[电气工程—电机] TM351