模糊逻辑在舰船航向自动控制系统中的应用

Implementation autopilot system for ship course control the coarse by using principles of fuzzy logic

分析了设计舰船航向自动控制系统时面临的问题,建立了描述舰船运动的六自由度模型,给出了以模糊逻辑为基础的舰船航向模糊控制系统框图,研究在随机变化的外部扰动作用下,考虑舰船数学模型复杂动态过程与非线性时,以航向误差和误差变化率为输人变量,以舵面位置变化为控制量的二维模糊控制器构成问题,给出了模糊调节器运行参数计算方法,针对舰船摇摆和保持航向最危险的情况给出了仿真结果。

This article analyses the issue of implementation autopilot system to control the course and gives the block diagram of fuzzy control system by using principles of fuzzy logic and establishes six degree of freedom model.It contemplates the problems taking into account complexity of ships mathematical model dynamic and its nonlinearity as a control object under randomly changing conditions of system operation.This method seems the course error and rate of change as input variable and sets the two-dimensional fuzzy controller as a problem.It lists the calculation method of fuzzy controller parameter.This paper reaches the simulation results of ship rocking and the most dangerous situation of keeping the course.