Research on Rudder Roll Stabilization System Based on Fuzzy Sliding Mode Adaptive Control

With the development of Marine navigation, a variety of anti-roll devices have been invented, and rudder anti-roll is one of them. Steering rudder is a nonlinear system with strong coupling, and it is a difficult problem for the controller design to reduce roll and control course through rudder. This paper is based on fuzzy sliding mode control theory. By taking the switching function and the derivative of the switching function of the sliding mode controller as the input of the fuzzy controller, the output of the fuzzy controller as the input instruction of the actuator, the purpose of reducing roll of the rudder is realized, and the chattering phenomenon in the sliding mode control is improved at the same time. A fuzzy sliding mode adaptive control is proposed, which only takes the attitude information of the ship as the input signal of the control system. Rudder angle as actuator output signal, can achieve course maintenance and roll stability at the same time. The simulation results show that the fuzzy sliding mode controller can achieve good anti-roll effect when the travel of the ship