基于自适应GPC的舵和水舱联合减摇系统研究  

Research on Rudder-tank Joint Antirolling System Based on Adaptive GPC strategy

作　　者：官英双[1] 彭秀艳[1] 赵希人[1] 

机构地区：[1]哈尔滨工程大学自动化学院,黑龙江哈尔滨150001

出　　处：《微计算机信息》2012年第10期14-16,共3页Control & Automation

摘　　要：在研究了舵和水舱联合减横摇控制方法的基础上,建立了广义预测控制(GPC)的预测模型,用递推最小二乘法在线估计预测模型参数,求出使船舶横摇角广义稳态方差最小的控制律,用传统的开关式气阀控制,使水舱产生对抗海浪干扰的力矩;接着运用kalman滤波算法在线估计参数,用LQG方法使航向舵控制减摇。仿真结果表明,这种控制策略能够在较宽的频率范围内对船舶有效减摇。The prediction model of Generalized Predictive Control （GPC） is built based on the study of the rudder-tank joint an- tirolling control method. By the method of recursive least squares, the prediction model parameters can be estimated online. Also, the generalized minimum variance steady-state control law of ship roll angle can be got. Using switching valve control, the resistance of tank can be produced. Then, the required parameters are calculated by kalman filtering algorithm. At last, we use rudder to reduce ship roll angle by the method of LQG. Simulation studies show that this control strategy can achieve good stahilization in a wide fre- quency range.

关 键 词：联合减摇 舵/可控被动式减摇水舱 自适应GPC LQG控制 随机最优控制 

分 类 号：TP391.1[自动化与计算机技术—计算机应用技术]