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Stabilization Methods for Sensorless Induction Motor Drives—A Survey

机译：无传感器感应电动机驱动器的稳定化方法—调查

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摘要

The challenges of achieving stability and good damping of a sensorless induction motor drive are much greater than for a sensored drive. In this paper, some frequently proposed flux and speed estimators—such as reduced- and full-order observers—are reviewed, along with their key static and dynamic properties as well as their parameter sensitivities. Three commonly occurring instability phenomena and their remedies are discussed, along with suitable analysis methods. Low-speed instabilities are most severe, and therefore, the stator resistance is the single most critical parameter. Methods for reducing the impact of this parameter are discussed.
机译：实现无传感器感应电动机驱动器的稳定性和良好阻尼的挑战远大于有传感器驱动器。在本文中，对一些常用的通量和速度估计器（例如降阶和全阶观测器）及其关键的静态和动态特性以及其参数敏感性进行了回顾。讨论了三种常见的不稳定性现象及其解决方法，以及适当的分析方法。低速不稳定性最严重，因此，定子电阻是唯一最关键的参数。讨论了减少此参数影响的方法。

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