CONTROL PERFORMANCE OF A TURRET-MOORED VESSEL ASSISTED BY DYNAMIC POSITIONING SYSTEM

摘要

This paper presents a nonlinear motion simulation and a controller disign for a turret-moored vessel assisted by applying Green function method. A dynamic positioning controller, robust to uncertainties brought about by time-varying environmental loads, has been designed applying H_infinity control syntheisi. A two degree of freedom control system is adopted for tracking mode. Numerical simulations show that the controller works satisfactorily.