Active vibration control for ship pipeline system based on PI-LQR state feedback

被引：26
|
作者：
Zhang, Shuo [1 ]
Liu, Lu [2 ,3 ]
Zhang, Xiaomeng [2 ]
Zhou, Yukang [1 ]
Yang, Qi [4 ]
机构：
[1] Northwestern Polytech Univ, Sch Math & Stat, Xian 710072, Peoples R China
[2] Northwestern Polytech Univ, Sch Marine Sci & Technol, Xian 710072, Peoples R China
[3] Northwestern Polytech Univ, Res & Dev Inst, Shenzhen 518057, Peoples R China
[4] Shenyang Ligong Univ, Dept Med Engn, Shenyang 110000, Peoples R China
来源：
OCEAN ENGINEERING | 2024年 / 310卷
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
Active vibration control; PI-LQR; Ship pipeline system;
D O I：
10.1016/j.oceaneng.2024.118559
中图分类号：
U6 [水路运输]; P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
An active vibration control method based on PI-LQR (Proportional Integral-Linear Quadratic Regulator) state feedback is studied to suppress the vibration of ship pipeline systems. LQR is a common optimal calculation method of proportional active control. However, PI active control may cause the uncontrollability of the extended system, which leads to the failure of combination of PI and LQR. To solve this problem, a PI-LQR controller is designed and proposed in this paper. Firstly, an arrangement method of sensors and controllers is introduced according to the Gramian theory of observability and controllability. Then, Based on a modified system matrix, the revised extended system achieves to be controllable, such that LQR becomes available to the quick calculation of the approximate control gains. Moreover, the proof and example simulations of the provided method are given. Compared with the classical LQR-based proportional control in the example simulation, PI-LQR control makes the vibration acceleration levels of the sensors decrease 0.29 dB on average and 2.00 dB maximally, which verifies the effectiveness and superiority of the obtained results.
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收藏
页数：7
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