Robust performance in dynamic positioning systems

被引:1
|
作者
Johannessen, E
Egeland, O
机构
[1] Dept. of Engineering Cybernetics, Norwegian Institute of Technology
关键词
dynamic positioning; surface vessels; robust performance; structured singular value; multivariable frequency analysis;
D O I
10.4173/mic.1996.2.1
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Robust performance of dynamic positioning of surface vessels is considered. The structured singular value, mu, is used as a robustness measure. A tight uncertainty description of the wave disturbance model and performance weight matrices based on physical insight is presented. Two controllers are analysed: a decentralized PD controller with notch filters and an LQG based controller. Performance of the control systems is shown to be sensitive with respect to changes in the dominating wave frequency, omega(0).
引用
收藏
页码:75 / 86
页数:12
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