摘要
为了提高船舶航向/横摇控制系统的可靠性,改善系统故障情况下的容错控制效果,采用基于线性矩阵不等式(LMI)的鲁棒容错控制设计方法,对船舶航向/横摇系统进行容错控制研究。建立船舶航向/横摇耦合运动模型,分析故障导致的模型等效不确定性,通过定义广义干扰,将模型变换为适合于H 2/H∞鲁棒容错控制设计的标准模型。设计系统的性能评价指标,求解鲁棒容错控制器,并进行仿真验证。结果表明,船舶航向/横摇鲁棒容错控制系统具有良好的容错性能。
In order to improve the ship course / roll control system reliability and ameliorate the effectiveness of failure system fault-tolerant control,robust fault-tolerant control design method based on linear matrix inequalities（LMI） was used in the ship course / roll fault-tolerant control system.Ship course / roll coupled model was built and the failures caused by model equivalent uncertainty was analyzed.The model was transformed as the standard form that suitable for the design of H ^2 /H^∞ robust fault-tolerant control through the definition of generalized interference.The evaluation signal of the system performance was designed and the robust fault-tolerant controller was calculated.The system simulation was carried out.The result shows that the system designed has better fault-tolerance performance.
出处
《中国造船》
EI
CSCD
北大核心
2010年第2期155-161,共7页
Shipbuilding of China
基金
国家自然科学基金项目(编号:60704004)
