摘要
针对传统农业机械存在种肥同播作业方式粗放、利用率低、生产成本高等问题,设计1种基于MCGS的变量播种施肥控制系统。基于电学原理与动力学原理,对控制系统中伺服电动机、机械式无级变速器等关键部件建立数学模型,在MATLAB/Simulink中搭建系统控制模型并仿真,获得控制系统性能曲线。仿真结果表明:所设计的变量播种施肥控制系统从零开始达到稳态,用时小于0.2s;在外界干扰情况下,控制系统曲线波动小,鲁棒性和跟踪性能较好,可实现变量播种施肥。该项研究成果可为变量播种施肥控制系统优化提供参考。
The seeding and fertilizing control system based on MCGS was designed in order to improve the traditional agricultural machinery situation of seed-fertilizer simultaneous broadcasting mode of operation and reduce the cost of production. The mathematical model including the servomotor and the continuously variable transmission of the control system was established based on the electricity and dynamics principle. The establishment and simulation of control model were achieved in MATLAB/Simulink software, which obtained the curve changing laws of the system performance. The simulation results showed that the control system reaching to stable performance can be less than 0.2s. The output response of the control system was quick and stable in the case of interference, which can realize variable precision seeding and fertilization. The research will provide a basis for the optimization of the variable seeding and fertilization control system.
作者
张伏
陈天华
陈建
王亚飞
滕帅
ZHANG Fu;CHEN Tianhua;CHEN Jian;WANG Yafei;TENG Shuai(College of Agricultural Equipment Engineering, Henan University of Science and Technology, Luoyang 471003,China)
出处
《河北农业大学学报》
CAS
CSCD
北大核心
2019年第4期117-121,共5页
Journal of Hebei Agricultural University
基金
“十三五”国家重点研发计划项目（2017YFD0301106）
河南省高等学校青年骨干教师培养计划项目（2017GGJS062）
关键词
变量播种施肥
MCGS
数学模型
PID控制
优化
variable sowing and fertilization
MCGS
mathematical model
PID control
optimization
