CEAI_LOGO

QFT Autopilot Design For Robust Control Of Ship Course-Keeping And Course-Changing Problems

Authors
  • Viorel Nicolau

    "Dunarea de Jos" University of Galati, Department of Electronics and Telecommunications

  • Constantin Miholca

    "Dunarea de Jos" University of Galati, Department of Electronics and Telecommunications

  • Dorel Aiordachioaie

    "Dunarea de Jos" University of Galati, Department of Electronics and Telecommunications

  • Emil Ceanga

    "Dunarea de Jos" University of Galati, Research Center in Advanced Process Control Systems

Abstract
This paper describes the design steps of robust QFT autopilot for the course-keeping and course-changing control of a ship, in the presence of disturbances. The ship model has parametric uncertainties, caused by the variations of hydrodynamic coefficients with the speed of the ship. Knowing the variation ranges of the model parameters, the QFT method (Quantitative Feedback Theory) can be used to design the ship autopilot with certain performance specifications. The autopilot must satisfy the robust stability, tracking performance and disturbance rejection conditions, for all ship models generated by the parameter variations within the uncertainty ranges.
References
Downloads
Published
2006-03-31
Section
Articles