船舶六自由度转台电液伺服系统参数整定方法  

On the PID Parameters Tuning in the Electric-hydraulic Servo System

作　　者：李学斌[1] 黄利华[1] 

机构地区：[1]武汉第二船舶设计研究所,武汉430064

出　　处：《船海工程》2009年第3期19-22,共4页Ship & Ocean Engineering

摘　　要：针对船舶六自由度转台电液伺服系统的参数整定问题,提出一种基于多目标遗传算法和多属性决策的PID参数设计方法,综合考虑了系统超调量、稳定时间和ITAE指标,采用多目标遗传算法求出Pareto最优解。使用客观赋权的信息熵法对最优解的属性进行权值计算,然后采用逼近理想解的排序方法(TOP-SIS)进行多属性决策(MADM)研究。计算了转台电液伺服控制的数值算例,结果表明本文提出的联合方法通用性好,所设计的PID性能优异,适合工程实际应用。A new tuning hybrid method was present for PID parameters based on multi-objective optimization technique. Firstly, a non-dominated sorting genetic algorithm Ⅱ was employed to approximate the set of Pareto solution through an evolutionary optimization process. Then a multi-attribute decision making （MADM） approach was adopted to rank these solutions from best to worst and to determine the best solution in a deterministic environment with a single decision maker. A PID design example for 6-DOF simulator electric-hydraulic servo system was given to illustrate the analy- sis process in present study. The ranking of Pareto solution is based on entropy weight and TOPSIS method.

关 键 词：六自由度转台 PID调节器 遗传算法 多目标优化 多属性决策 TOPSIS 

分 类 号：U666.16[交通运输工程—船舶及航道工程] TP273[交通运输工程—船舶与海洋工程]