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Repetitive Control of Piezoelectric Actuators with Fuzzy Hysteresis Compensation in Nanopositioning Applications

机译:纳米定位应用中具有模糊滞后补偿的压电执行器的重复控制

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A new repetitive control scheme with fuzzy hysteresis compensation is proposed for cancelling out the hysteresis effect of the piezoelectric actuator in periodic trajectory tracking.The repetitive controller (RC) is designed for robustness and good tracking performance.The fuzzy hysteresis compensator is developed using the inverse of the proposed novel fuzzy-systembased hysteresis model.Experiments with 50 Hz sinusoidal and triangular trajectories show that the maximum tracking errors are reduced to 58 nm and 43 nm by the proposed controller,88% and 87% less than the conventional PID controller respectively.Clearly,the experiment demonstrates the efficiency of the designed controller in nanopostioning applications.
机译:为了消除压电致动器在周期性轨迹跟踪中的磁滞效应,提出了一种新的具有模糊滞后补偿的重复控制方案,设计了具有鲁棒性和良好跟踪性能的重复控制器(RC)。 50 Hz正弦和三角形轨迹的实验表明,所提出的控制器将最大跟踪误差减小到58 nm和43 nm,分别比常规PID控制器小88%和87%。显然,该实验证明了所设计的控制器在纳米定位应用中的效率。

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