船舶动力定位系统的复合抗干扰控制  

Composite Anti-disturbance Control for Ship Dynamic Positioning Systems

作　　者：于子文 魏新江 YU Ziwen;WEI Xinjiang(School of Mathematics and Statistics Science,Ludong University,Yantai 264039,China)

机构地区：[1]鲁东大学数学与统计科学学院,山东烟台264039

出　　处：《鲁东大学学报（自然科学版）》2023年第1期42-49,共8页Journal of Ludong University:Natural Science Edition

基　　金：国家自然科学基金(61973149);山东省自然科学基金(ZR2020KF029)。

摘　　要：针对带有未知时变干扰和推进器故障的动力定位船舶,本文提出一种复合抗干扰控制方法。通过设计随机干扰观测器和故障诊断观测器估计未知干扰和故障,利用线性矩阵不等式证明了船舶的位置和航向保持期望值,且动力定位系统的所有信号都是依均方渐近有界的。最后,以比例模型船进行仿真,验证所提策略的有效性。For dynamic positioning ships under unknown time-varying disturbances and thruster faults,a composite anti-disturbance control method is proposed in this paper.By designing a stochastic disturbance observer and a fault diagnosis observer to estimate unknown disturbances and faults simultaneously,it is proved that the ship s position and heading remain at the expected value by using Linear Matrix Inequality,and all signals of the dynamic positioning system are asymptotically mean-square bounded.Finally,a proportional model ship was simulated to verify the effectiveness of the proposed strategy.

关 键 词：动力定位 复合抗干扰控制 未知环境干扰 未知时变故障 线性矩阵不等式 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]