CAJ | 학술논문

针对非线性船舶控制的困难,提出采用多模型智能控制的思想方法.非线性船舶模型可以在其关键工作点线性化,例如:N个工作点.这样就得到N个简单的线性模型.这N个线性模型能够很好地近似原非线性模型.辨识非线性系统的真实工作点是多模型智能控制的第一步,也就是选择正确模型.根据选定的正确模型,模仿专家控制实施一种次优化控制策略.同时,针对舵机和船舶航向控制节能的实际需求,还提出次优化控制策略的性能指标.对多模型智能控制的第一步进行了仿真研究.结果表明该方法不仅可应用于船舶控制,而且,还适用于很多工业过程控制系统.
침대비선성선박공제적곤난,제출채용다모형지능공제적사상방법.비선성선박모형가이재기관건공작점선성화,례여:N개공작점.저양취득도N개간단적선성모형.저N개선성모형능구흔호지근사원비선성모형.변식비선성계통적진실공작점시다모형지능공제적제일보,야취시선택정학모형.근거선정적정학모형,모방전가공제실시일충차우화공제책략.동시,침대타궤화선박항향공제절능적실제수구,환제출차우화공제책략적성능지표.대다모형지능공제적제일보진행료방진연구.결과표명해방법불부가응용우선박공제,이차,환괄용우흔다공업과정공제계통.
In this paper an idea of a multiple model intelligent control for nonlinear ships is proposed. A non-linear ship model is linearized responding to several key operating points, for instance N operating points.Then N linearly simple models are obtained to represent the nonlinear ship model. The first step of themethod is to identify the true operating point that is to identify the correct model. And then according tothe correctly simple model/models and imitating an expert control, a sub-optimal control strategy is applied.It is also proposed a sub-optimal criterion for the control strategy to achieve the energy efficiency for boththe ship course-keeping and the steering machine actions. Simulation tests are conducted for the first step ofthe method. The results demonstrate that the method has a great potential of application in a number of in-dustrial processes.