Comprehensive predictive control for vibration suppression based on piecewise constant input formulation
Comprehensive predictive control for vibration suppression based on piecewise constant input formulation
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DOI：
10.1177/1045389x211038703
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发表时间：
2021-08
影响因子：
2.7
通讯作者：
Ikuya Takamoto;Mizuki Abe;Y. Hara;Keisuke Otsuka;Kanjuro Makihara
中科院分区：
文献类型：
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作者：
Ikuya Takamoto;Mizuki Abe;Y. Hara;Keisuke Otsuka;Kanjuro Makihara
提出了一种基于模型预测控制（MPC）的半主动振动抑制方法。半主动振动抑制提供了优异的阻尼性能，能耗和稳定的控制过程。由于半主动控制输入通常是不连续的，因此可能难以预测。因此，我们将半主动振动抑制与MPC相结合，任意确定控制输入轨迹。提出的基于分段恒定输入的预测开关（PSPCI）方法，假设当控制电路处于开路状态时压电电荷保持恒定。在此假设下，可以预测系统的未来状态，实现半主动振动抑制，同时减少计算量。PSPCI方法预测了换能器未来的工作，有效地抑制了振动。通过仿真和实验验证了该方法的有效性和鲁棒性。提出的PSPCI方法能够预测半主动控制输入，并使控制输入的确定多样化，从而实现有效的半主动振动抑制。
We propose a novel semi-active vibration suppression method based on model predictive control (MPC). Semi-active vibration suppression provides excellent damping performance, energy consumption, and stability during control. As the semi-active control input is often discontinuous, it may be difficult to predict. Hence, we combine semi-active vibration suppression and MPC to determine the control input trajectory arbitrarily. The proposed method, called predictive switching based on piecewise constant input (PSPCI), assumes that the piezoelectric charge remains constant when the control circuit is in the open state. Under this assumption, the future system state can be predicted for semi-active vibration suppression while reducing the computational load. The PSPCI method predicts the future work done by the transducer and effectively suppresses vibrations. Its effectiveness and robustness are demonstrated through simulations and experiments. The proposed PSPCI method enables the prediction of the semi-active control input and diversifies the control input determination for effective semi-active vibration suppression.