Convex optimization of thrust allocation in a dynamic positioning simulation system

被引:3
|
作者
Zalewski, Pawel [1 ]
机构
[1] Maritime Univ Szczecin, Fac Nav, Ctr Marine Traff Engn, 1-2 Waly Chrobrego St, PL-70500 Szczecin, Poland
来源
SCIENTIFIC JOURNALS OF THE MARITIME UNIVERSITY OF SZCZECIN-ZESZYTY NAUKOWE AKADEMII MORSKIEJ W SZCZECINIE | 2016年 / 48卷 / 120期
关键词
dynamic positioning; thrust allocation; convex optimization; configurations; programming; simulator;
D O I
10.17402/176
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
Vessels conducting dynamic positioning (DP) operations are usually equipped with thruster configurations that enable the generation of resultant force and moment in any direction. These configurations are deliberately redundant in order to reduce the consequences of thruster failures and increase the safety. On such vessels a thrust allocation system must be used to distribute the control actions determined by the DP controller among the thrusters. The optimal allocation of thrusters' settings in DP systems is a problem that can be solved by several convex optimization methods depending on criteria and constraints used. The paper presents linear programming (LP) and quadratic programming (QP) methods adopted in the DP control model which is being developed at the Maritime University of Szczecin for ship simulation purposes.
引用
收藏
页码:58 / 62
页数:5
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