摘要
采用小型针阀、直流电动机及减速器设计了机电流量控制阀,解决了变量喷雾过程中药液微小流量的控制问题。构建了机电流量控制阀传递函数的数学模型,并为之设计了模糊控制算法。对该流量控制阀进行了模糊控制和PID控制的MATLAB仿真,结果表明:模糊控制在响应速度和超调量方面优于PID控制,稳态误差两者均在±3.0%以内。
To solve the control problem of micro-flow or low flow on pesticide in the course of variable rate spraying,an electromechanical flow control valve was developed with a miniature pin valve,a direct current(DC)motor,and gearset. A mathematical model of transfer function and arithmetic of fuzzy control were designed for the valve.The MATLAB simulation of the fuzzy controller and a PID controller was carried out on the electromechanical flow control valve.The results show that the fuzzy control is prior to PID...
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2009年第2期83-86,共4页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家“863”计划重大项目(2006AA10A307)
国家柑橘产业技术体系建设专项(农科教发[2007]14号)
广东省农业机械化科研课题(粤农函[2007]769号)
关键词
流量阀
模糊控制
计算机仿真
PID控制
变量喷雾
flow valves
fuzzy control
computer simulators
PID control
variable rate spraying
