摘要
为提高异步电动机控制系统的可靠性和适应性,文章提出了一种基于模型参考自适应(MRAS)理论的异步电动机无速度传感器矢量控制系统的设计方案。在MRAS理论的基础上,建立了速度辨识系统的模型,将其与应用SVPWM调制技术的变频器系统结合起来,组成了一种基于DSP的异步电动机无速度传感器矢量控制系统,具体介绍了其结构和软硬件设计。仿真结果表明该系统动态性能良好,能准确地跟踪电机转速的变化。
In order to improve the reliability and adaptability of the control system of induction motor, the paper presents a novel scheme for a speed sensorless vector control system of induction motor based on MRAS. With the theory of MRAS, a model of speed identification is estimated. We combine this model with the inverter controlled by space vector pulse width modulation （SVPWM） to form a speed sensorless vector control system of induction motor based on DSP, and analyze the structure and software and hardware designs of the system. The simulation results prove that the system has better dynamic performance and can track the variation of the motor speed accurately.
出处
《农业装备与车辆工程》
2007年第8期20-23,共4页
Agricultural Equipment & Vehicle Engineering
