基于遗传算法的PID控制器设计及仿真  

Design and simulation of GA-based PID controller

作　　者：傅晓云[1] 方旭[1] 杨钢[1] 李宝仁[1] 

机构地区：[1]华中科技大学机械科学与工程学院,湖北武汉430074

出　　处：《华中科技大学学报（自然科学版）》2012年第5期1-5,共5页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目(50975102)

摘　　要：分析了浮力调节装置实验系统的功能和结构,建立了数学模型.为了使控制器参数能够适应系统模型的改变,设计了基于遗传算法的自整定PID控制器,针对其液压系统中的多余压力提出了基于结构不变性原理的控制策略.对实验系统的控制模型进行仿真分析,结果表明:所设计的控制系统能够克服多余压力和模型参数时变2大控制难点,在不同的工况下能够始终保持良好的控制性能.The function and construction of a buoyancy regulation device experiment system were analyzed to establish its mathematical description.To make controller parameters follow the system change,the adaptive GA（genetic algorithm）-based PID controller was designed.To eliminate the surplus pressure,based on construction invariance principle a control strategy was presented.According to the simulation analysis,the problems of surplus pressure and time-varying system parameters were solved and the control performance of the system was improved in different condition.

关 键 词：浮力调节 压力伺服控制 遗传算法 多余压力 自整定比例积分微分 

分 类 号：TH137[机械工程—机械制造及自动化]