Control scheme of adaptive feedforward cancellation considering of Bode’s integral theorem for synchronous vibration suppression in rotating machineries
Control scheme of adaptive feedforward cancellation considering of Bode’s integral theorem for synchronous vibration suppression in rotating machineries
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DOI：
10.1177/1077546320962593
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发表时间：
2020-09
影响因子：
2.8
通讯作者：
S. Yabui;H. Inoue;T. Inoue
中科院分区：
文献类型：
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作者：
S. Yabui;H. Inoue;T. Inoue
同步振动是旋转机械稳定运行的主要障碍。在以前的研究中，主动控制方法被用来利用执行器来补偿同步振动，例如主动磁轴承或压电执行器。自适应前馈抵消是另一种著名的控制方法，用于补偿实际系统中的同步振动。控制方法可以补偿同步振动，但由于波德积分原理，水床效应会使其他频率范围内的振动幅值增大。因此，同步振动的补偿和其他振动的负面影响之间存在权衡。为了消除水床效应带来的负面影响，提出了一种新的自适应前馈抵消控制方案。该方法在自适应前馈抵消中控制自适应算法的输入信号，实现了理想的前馈控制器独立于反馈回路工作。利用试验台对该方法的有效性进行了实验验证。
Synchronous vibration is a major obstacle to the stable operation of rotating machineries. In previous studies, active control methods were developed to compensate for synchronous vibration using actuators, such as an active magnetic bearing or a piezo actuator. Adaptive feedforward cancellation is another well-known control method and is used to compensate for the synchronous vibration in the actual system. The control methods can compensate for the synchronous vibration; however, the amplitude of the vibration in other frequency ranges can be increased by the waterbed effect due to Bode’s integral theorem. Therefore, there is a trade-off between the compensation of the synchronous vibration and the negative impact of other vibration. In this article, a novel control scheme for the adaptive feedforward cancellation is proposed to eliminate the negative impact due to the waterbed effect. The proposed method controlled the input signal of the adaptive algorithm in the adaptive feedforward cancellation and realized an ideal feedforward controller worked independently from the feedback loop. The effectiveness of this method was verified experimentally using a test rig.