Abstract

Taking a super large twin-propeller twin-rudder container ship as research object, according to mechanism of MMG modeling, a mathematical model of ship motion for a super large ship with twin-propeller and twin-rudder is established. The validity of the ship model is verified by completing turning test. The maneuverability of the ship is discussed under several working conditions when left propeller and right propeller have the same speed and different speed. The active disturbance rejection control algorithm is adopted in the design of ship course controller and simulation calculation is accomplished. Fuzzy control algorithm is used to improve conventional active disturbance rejection controller (ADRC), which is applied to above ship course control. The simulation results show that the improved ADRC has better control performance, fast response and better control accuracy obtained.

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