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Analysis and experiments of adaptive feedforward and combined vibration control system with variable step size and reference filter

机译：变步长和参考滤波器的自适应前馈和组合振动控制系统的分析与实验

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摘要

An adaptive feedforward and combined vibration control system with variable step size and reference filter is analyzed and implemented to suppress the vibration of a kind of thin-walled structure. The theoretical analysis and experiments of adaptive feedforward and combined vibration control algorithms are presented. The experimental setup of a flexible plate bonded PZT (Lead Zirconate Titanate) sensors/actuators is constructed. The control algorithm combines an adaptive feedforward controller and an adaptive feedback controller together, which has shown a superior control performance in the experiments. Considering the disadvantages of fixed step size used in the conventional filtered U least mean square (FULMS) control algorithm, a variable step-size (VSS) method is applied. Also, a reference filter is used to extract the desired signal from the positive feedback and measurement noise. A proportional derivative (PD) feedback control algorithm is also applied as comparison. The experimental results demonstrate that the adaptive combined control algorithm has better control performance than the adaptive feedforward and PD feedback control algorithms. (C) 2016 Elsevier Masson SAS. All rights reserved.
机译：分析并实现了具有可变步长和参考滤波器的自适应前馈和组合振动控制系统，以抑制一种薄壁结构的振动。提出了自适应前馈和组合振动控制算法的理论分析和实验。构建了柔性板键合PZT（锆钛酸铅）传感器/执行器的实验装置。该控制算法将自适应前馈控制器和自适应反馈控制器结合在一起，在实验中显示了优越的控制性能。考虑到常规滤波U最小均方（FULMS）控制算法中使用固定步长的缺点，应用了可变步长（VSS）方法。同样，参考滤波器用于从正反馈和测量噪声中提取所需信号。比例微分（PD）反馈控制算法也用作比较。实验结果表明，自适应组合控制算法比自适应前馈和PD反馈控制算法具有更好的控制性能。 （C）2016 Elsevier Masson SAS。版权所有。

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