感应电机无速度传感器技术综述

Review of speed sensorless technology for induction motors

由于转速传感器价格昂贵,可靠性低以及易受环境影响,因此,近年来各种无速度传感器控制策略得到了很好的发展。本文对感应电机无速度传感器控制策略的研究现状进行了总结和综述,主要介绍了全阶状态观测器、模型参考自适应和滑膜观测器等速度辨识方法,分析其优缺点和适用范围。针对不同控制策略的难点进行了详细阐述,并给出相应的解决方法。为未来的无速度控制策略提供研究方向。

Speed sensors are expensive,unreliable,and sensitive to environmental changes;in recent years,a number of speed sensorless control techniques have been developed.This work reviews and summarizes the state of the art research on speed sensor-less control strategies for induction motors.It focuses on introducing and analyzing the benefits and drawbacks of various speed identification techniques,including full-order state observer,sliding film observer,and model reference adaptive.The challenges associated with various control strategies are thoroughly explained and corresponding solutions were provided,which provides a research direction for future speed control strategies.