摘要
自动播种机是农业机械现代化的重要装备,为了提高播种机的工作性能和自动化水平,对播种机执行机构的电控系统进行了分析与控制研究;针对我国各地区耕作土壤参数相差较大所带来的不便于自动播种机大范围内推广的问题,结合双圆盘开沟器土壤力学模型基于最小二乘法进行了土壤力学的参数识别研究,设计了基于土壤参数识别实时地优化调整执行机构的播种机电控系统自适应控制策略,并进行了仿真。仿真结果表明,所提出的控制策略可以根据不同耕地土壤来调节开沟器入土深度。
Automobile drill is one of the major equipments of agricultural machinery modernization.Electronics control system of drill＇s actuator is analyzed and researched in order to improve the drill＇s working performance and automatic level.In allusion to the problem of automatic drill difficulty to be generalized in large range,dual disk coulter is modeled and soil mechanics parameters are identified by least square method.A self-adaptation control strategy is presented for actuators optimization control based on the results of soil parameters＇ recognition.Simulation results show that the self-adaptation control effect is correct and effective for drill depth control.
出处
《农机化研究》
北大核心
2012年第12期162-165,205,共5页
Journal of Agricultural Mechanization Research
基金
中央高校基本科研业务费专项资金资助(N090403008))
关键词
自动播种机
电控系统
土壤
参数识别
自适应控制
automatic drill
electronic control
soil
parameter identification
self-adaption control
