变论域模糊自适应PID控制在池塘溶解氧中的应用  

Application of variable domain fuzzy adaptive PID control in pond dissolved oxygen

作　　者：曾德斌 许江淳[1] 李玉慧 张矿伟[1] 陆万荣 杨杰超 Zeng Debin;Xu Jiangchun;Li Yuhui;Zhang Kuangwei;Lu Wanrong;Yang Jiechao(Kunming University of Science and Technology,Faculty of Information Engineering and Automation,Kunming,650500,China)

机构地区：[1]昆明理工大学信息工程与自动化学院,昆明市650500

出　　处：《中国农机化学报》2018年第10期50-53,共4页Journal of Chinese Agricultural Mechanization

基　　金：国家自然科学基金项目资助(61363043);云南省教育厅科学研究基金项目(2016ZZX201)

摘　　要：针对池塘溶解氧变化具有非线性、时变性、大惯性等特点以及常规模糊PID控制器自适应能力差等问题,设计一种基于变论域的模糊PID控制器与增氧机转速PID调节器构成的池塘溶解氧控制系统。文中采用20组数据数据样本进行喂食量与溶解氧的关系和光照强度与溶解氧的关系进行实验,喂食量与溶解氧的R2为0.947 4优于光照强度与溶解氧的R2为0.933 9,并用10组数据样本验证,验证数据表明喂食量与溶解氧更适用于池塘溶解氧系统模型,有较好的应用价值。Aiming at the problems of non-linear,time-varying,large inertia and adaptive capacity of conventional fuzzy PID controller,apond dissolved oxygen control system based on variable domain fuzzy PID controller and resolver speed PID controller is designed.In this paper,using 20 groups of data samples data to feed intake and the relationship between dissolved oxygen and light intensity and the relationship between dissolved oxygen and experiment,the feeding of dissolved oxygen and R2 is 0.947 4 is better than that of light intensity and dissolved oxygen R2 is 0.933 9,and 10 samples of data verification,validation data show that feeding and dissolved oxygen dissolved oxygen system is more suitable for pond model,has good application value.

关 键 词：溶解氧 增氧机 模糊控制 变论域 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]