无速度传感器感应电机控制系统转速辨识方法研究

摘要

无速度传感器感应电机控制技术已成为近年的研究热点,转速估计是无速度传感器感应电机控制技术的核心问题.在此对无速度传感器感应电机转速辨识技术进行了介绍,分析了几种比较典型的转速辨识方法的理论要点和优缺点,在直接转矩控制基础上设计了无速度传感器感应电机控制系统模型并进行仿真,给出了试验参数及仿真图形,并就今后的研究发展方向提出了看法.%The sensor-less control technology of induction motor has already been a research focus in recent years. The rotate-speed identification is its core. The rotate-speed identification technology for induction motors without any speed sensor is introduced. The theoretical key points and relative merits of several typical rotate-speed identification methods are analyzed.On the basis of direct rotation torque control, a model of control system for induction motors without speed sensor was designed and carried out simulation. The testing parameters and simulation diagram are given. Some opinions about the future direction of the development are presented.