升力/鳍角综合控制减摇鳍的研究

理论上升力反馈控制减摇鳍可屏蔽鳍角反馈控制减摇鳍在鳍角与升力计算中的映射误差,但在实际应用中,升力鳍系统的升力检测问题和传感器的安装问题存在一些技术难点,并不能达到理论上的减摇效果。升力/鳍角综合控制减摇鳍系统应用了信息融合技术,综合了升力和鳍角传感器所提供的局部信息,消除信息之间的冗余和矛盾,利用信息之间的互补来获得对升力信号的相对完整一致的描述。建立了系统的模型,并用该控制方法对系统的融合和减摇效果进行了仿真。结果表明,这种控制系统在各种海况下都能达到减摇要求,而且减摇性能也好于单独使用鳍角反馈和升力反馈的控制系统。     

Fuzzy-PID controlled lift feedback fin stabilizer

Conventional PID controllers are widely used in fin stabilizer control systems, but they have time-variations, nonlinearity, and uncertainty influencing their control effects. A lift feedback fuzzy-PID control method was developed to better deal with these problems, and this lift feedback fin stabilizer system was simulated under different sea condition. Test results showed the system has better anti-rolling performance than traditional fin-angle PID control systems.