智能混肥控制系统水肥浓度控制策略研究  

Study on Water and Fertilizer Concentration Control Strategy of Intelligent Mixed Fertilizer Control System

作　　者：赵景波 张文彬 朱敬旭辉 邱腾飞 刘信潮 Zhao Jingbo;Zhang Wenbin;Zhu Jingxuhui;Qiu Tengfei;Liu Xinchao(School of Information and Control Engineering,Qingdao University of Technology,Qingdao 266520,China)

机构地区：[1]青岛理工大学信息与控制工程学院

出　　处：《农机化研究》2020年第5期236-242,共7页Journal of Agricultural Mechanization Research

基　　金：国家自然科学基金项目(51475251);山东省西部经济隆起带基层科技人才支持计划项目(XB2018CX023);山东省自然科学基金项目(ZR 2013FM014);山东省高等学校科技计划项目(J12LN37)

摘　　要：如今中国农业正处在由传统的粗放型农业向现代化农业转型的关键时期,现代的物联网、大数据、智能控制等技术的发展为农业的转型提供了坚实的技术支撑。中国作为世界最大的农产品生产国,设施农业种植面积位列世界第一,但设施和设备的技术含量不足且尚未实现规模量产,严重影响了农业现代化的推进。为此,基于智能水肥控制技术,针对智能水肥一体机混肥浓度非线性问题,提出了一种变论域模糊控制算法VFPID,结合传统PID控制器后,在混肥过程中水肥耦合液浓度控制超调量变小、调节时间短,控制效果显著。变论域模糊控制器经过论域调整,在线自整定输出变量ΔK_p、ΔK_i、ΔK_d,同时作为PID控制器输入量,并运用在线自整定功能的控制器,实现了控制过程中浓度调解时间更短、控制精度更高的目标。At present,China’s agriculture is in a critical period of transformation from traditional extensive agriculture to modern agriculture,and the development of modern Internet of things,big data,intelligent control and other technologies provides solid technical support for the transformation of agriculture.Facilities in China,the world’s largest producer of agricultural products,agricultural planting area in the world first,but the facilities and equipment and technical content has not yet realize scale production,seriously affected the advancement of agricultural modernization,in the context of this reality,this article is based on intelligent control technology,water with smart all-in-one mixed fertilizer concentration nonlinear problem,this paper proposes a VFPID variable universe fuzzy control algorithm,combined with the traditional PID controller,in the process of mixed fertilizer solution concentration control overshoot small quantity,short setting time,the control effect is remarkable.

关 键 词：智能水肥一体机 变论域模糊控制 VFPID 正态云发生器 

分 类 号：S224.2[农业科学—农业机械化工程] TP273[农业科学—农业工程]