An Experimental Study on the Rolling Motion Control of a Ship Based on LMI Approach

J. Ocean Eng. Technol. 2003;17(2):60-66.

LMI를 이용한 선박 횡동요 제어에 관한 실험적 연구

채규훈,김영복

군산대학교 기관공학과,부경대학교 기계공학부

Keywords: Anti-Rolling System, Rolling Motion, LMI, Controller Design Problem, Control Performance

핵심용어: 횡동요 방지 장치, 횡동요, 선형행렬부등식, 제어기 설계문제, 제어성능

Abstract

In this paper, an actively controlled anti-rolling system is considered, in order to reduce the rolling motion of a ship. In this control system, a small auxiliary mass is installed on the upper area of the ship, and an actuator is connected between the auxiliary mass and the ship. The actuator reacts the auxiliary mass, applying inertial control forces to the ship to reduce the rolling motion in the desired manner. In this paper, we introduce LMI based H$_{infty}$ control approach to design the anti-rolling control system for the controlled ship. And the experimental results show that the desirable control performance can be achieved.