Traditional speed identification methods for sensorless vector control of induction motors are inaccurate due to external disturbances and model errors.
受外部干扰和模型误差影响，异步电机无速度传感器矢量控制中的转速辨识结果往往不准确。
A precise measuring device for the warp tension of the loom is introduced with several reasons for causing errors and disturbances analyzed and its compensation method of the error presented.
对经纱张力检测装置中产生误差和干扰的几种原因进行分析，介绍了一种高精度的织机经纱张力检测装置。
For all disturbances which the upper bounds are unknown, the tracking errors decrease uniformly asymptotically to zero by the designing of switching strategy.
通过设计切换律，对于具有未知上界的干扰，保证跟踪误差一致渐近趋于零。
These methods can effectively restrict the oscillations due to the measuring errors or the high frequency disturbances. The trend of downward continuation is stable.
这些方法大都能有效地压制由于观测误差或高频干扰所引起的振荡，使下延结果趋于稳定。
These methods can effectively restrict the oscillations due to the measuring errors or the high frequency disturbances. The trend of downward continuation is stable.
这些方法大都能有效地压制由于观测误差或高频干扰所引起的振荡，使下延结果趋于稳定。
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