穿浪艇喷水推进系统单、双变量智能控制的仿真比较研究  

Research on comparison between double variables and single variable intelligent control over water-jet propulsion system of WPC

作　　者：奚炜[1] 杨松林[1] 

机构地区：[1]江苏科技大学,江苏镇江212003

出　　处：《舰船科学技术》2005年第5期42-46,共5页Ship Science and Technology

摘　　要：以MATLAB为工作平台,应用其仿真软件S imu link对穿浪艇的喷水推进系统进行了运动数学建模,再利用其模糊推理工具箱Fuzzy建立了模糊控制子系统的模型,然后根据航速差的大小判断准则实时分级施控。仿真结果表明,较之常规普通的只调节主机功率Ps的推进控制,通过分级调节主机功率Ps和喷口直径Da,能实现对喷水推进型穿浪艇更有效的控制,尤其是在当所需调节的速度变化量较小时,双变量的控制超调量更小、稳定更快、经济性更高。In this paper, MATLAB is chosen to serves as the work-platform whose simulation soft-ware package--Simulink is applied to construct a mathematical model of the motion of water-jet propulsion subsystem of a WPC.Then, FIS--MATLAB＇s toolbox for fuzzy logic is employed to establish the model of fuzzy control subsystem. When realizing the intelligent control over the water-jet propulsion subsystem, it firstly calculate the difference between object speed and real-time actual speed, then, according to the size of speed difference,it automatically judges which variable to adjust--the power of engine machine Ps or the diameter of pump＇s water-outlet Da. In the course of simulating, this controller keeps judging between Ps and Da which variable to adjust according to the changing size of real-time speed difference.The simulation results show that compared with conventional single-variable control which adjusts Ps only, this double-variable control performs more efficiently and economically. Especially when the size of speed difference is relatively small, adjusting Da instead of adjusting Ps makes the speed steady more quickly with a smaller amount of excess control.

关 键 词：穿浪船 喷水推进 模糊控制 双变量 MATLAB 仿真 

分 类 号：U664.34[交通运输工程—船舶及航道工程]