全航速升力反馈减摇鳍控制策略研究

提出全航速减摇鳍控制策略，对低航速和中航速切换策略进行研究．采用升力反馈封装鳍角到升力的不确定性，避免在零航速和低航速下复杂的控制规律；同时，基于T-S模型将横摇非线性不确定系统转化为线性时变系统，并将控制中的约束非线性优化问题转化为二次规划问题，避免了预测控制中的非线性优化在线求解．以某船为例，给出了低中航速的切换控制策略，仿真结果表明了该方法可以使减摇鳍满足全航速减摇要求．

Study on control strategy for ship stabilizer with lift feedback at all speed

This paper presents a control strategy of all-speed fin stabilizer,and studies the switch principle between low speed and medium speed.To avoid the complicated control law in zero or low speed,lift force feedback is adopted to eliminate the uncertainty which exists during the transformation from fin angle to lift force.The ship rolling motion model,which is a nonlinear uncertain system,is linearized to time-varying system by T-S model.The constrained nonlinear optimizing problem is transformed to quadratic ...