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Coordinating Control for a Fleet of Underactuated Ships

In English

Författare

Summary, in English

We consider design of coordinating controllers for a fleet of underactuated ships. Each ship is modeled as a mechanical system with 3 degrees of freedom and 2 control inputs, which are the propeller thrust and the angle of the rudder; presence of lumped environmental forces is assumed. The proposed motion planning procedure relies. on properties of an auxiliary explicitly constructed second order dynamical system. We propose a procedure for motion planning for the whole fleet and for design of a coordinating feedback controller, which stabilizes the motion. In the case when geometric paths for ship motions are given, following our approach, we obtain a description of all feasible motions of the fleet along these paths. In addition, it is shown how to design controllers to counteract environmental forces while remaining on the paths. As a side result, we provide some modifications and give some insights into the weather optimal positioning control design, introduced in [1] for a fully actuated ship model.

Publiceringsår

2006

Språk

Engelska

Sidor

233-250

Publikation/Tidskrift/Serie

Group Coordination and Cooperative Control (Lecture Notes in Control and Information Sciences)

Volym

336

Dokumenttyp

Del av eller Kapitel i bok

Förlag

Springer

Ämne

  • Control Engineering

Status

Published

Projekt

  • LU Robotics Laboratory

ISBN/ISSN/Övrigt

  • ISSN: 0170-8643
  • ISBN: 978-3-540-33468-2