Intelligent sea transportation system postoptimal analysis

A procedure for the ship dynamic positioning postoptimal analysis in Intelligent Sea Transportation System Optimization is proposed. The dynamic positioning control system design is based on the optimal constrained covariance control (OC3). In that way some disadvantages of the classical optimal control technique are avoided. When the sensitivity of solutions to desired system performances is performed, then it can be shown that under particular circumstances, a slight change of desired system performances could significantly improve the optimal solution value. Namely, a slight relaxation of desired system position accuracy could result with significant energy savings. The presented numerical example illustrates some benefits of the proposed approach.

[1]  Pertti M. Mäkilä,et al.  Computer-aided design procedure for multiobjective LQG control problems , 1989 .

[2]  Robert Skelton,et al.  A covariance control theory , 1985, 1985 24th IEEE Conference on Decision and Control.

[3]  Tapio Westerlund,et al.  Constrained linear quadratic gaussian control with process applications , 1984, Autom..

[4]  Richard M. Stanley.  Optimal Estimation With an Introduction to Stochastic Control , 1988 .

[5]  Urmila M. Diwekar,et al.  Introduction to Applied Optimization , 2020, Springer Optimization and Its Applications.

[6]  Ivan Bošnjak,et al.  Postoptimal analysis in intelligent sea transportation system optimization , 2009 .

[7]  Sadko Mandžuka,et al.  An Experimental Method Of Real Human Motions Measurments , 2004 .

[8]  R. Fletcher.  Practical Methods of Optimization , 1988 .

[9]  Michael J. Grimble,et al.  The design of dynamic ship positioning control systems using stochastic optimal control theory , 1980 .

[10]  Amir Nassirharand.  Controller design for highly nonlinear systems , 2006 .

[11]  Michael J. Grimble,et al.  Optimal control and stochastic estimation , 1988 .

[12]  Zoran Vukic,et al.  Use of Optimal Constrained Covariance Control (OC 3 ) in Dynamic Positioning of Floating Vessels , 1995 .

[13]  Max J. Morgan.  Dynamic Positioning of Offshore Vessels , 1978 .

[14]  Thor I. Fossen,et al.  Guidance and control of ocean vehicles , 1994 .

[15]  Dimitri P. Bertsekas,et al.  Constrained Optimization and Lagrange Multiplier Methods , 1982 .

[16]  Michael J. Grimble,et al.  Optimal Control and Stochastic Estimation: Theory and Applications , 1988 .

[17]  Jens G. Balchen.  Ship Positioning: Adaptive Control , 1991 .