基于模糊PID的变量施用液体肥控制系统研究  

Study of Variable Rate Liquid Fertilizer Applicator Control System Based on Fuzzy PID Controller

作　　者：梁春英[1] 衣淑娟[1] 

机构地区：[1]黑龙江八一农垦大学信息技术学院,黑龙江大庆163319

出　　处：《农机化研究》2010年第7期41-44,共4页Journal of Agricultural Mechanization Research

基　　金：黑龙江省重点攻关项目(GB04B703);黑龙江省重大攻关项目(GB06B601)

摘　　要：根据变量施用液体肥控制系统的流量特性,采用模糊PID控制算法对液体肥流量进行自动控制,并利用MATLAB的Simulink和Fuzzy工具对模糊PID控制过程进行了仿真。仿真结果表明:与常规PID控制相比,模糊PID控制算法降低了系统超调,缩短了调整时间,增强了抗干扰性,使施肥量更有效地保持在给定范围,表明了模糊PID的优越性。According to flow characteristics of variable rate liquid fertilizer applicator control system,the amount of fertilizer application was automatically controlled by the fuzzy-PID control algorithm,and the fuzzy-PID progress control system was simulated by Simulink and Fuzzy of MATLAB.Its application in actual device shows that,comparing normal PID control,the method has effectively kept the amount of fertilizer application range,which decreased system overshoot,shortened adjustment time and enhancing the anti interference performance,and displayed the fuzzy PID merit.

关 键 词：变量施肥 控制系统 模糊PID 仿真 

分 类 号：TP273.5[自动化与计算机技术—检测技术与自动化装置]