摘要
以播种机作业速度为研究对象,通过分析播种机排种轴转速与播种机行进作业速度的匹配性,建立了播种机作业速度与排种器转轴之间的数学关系,设计了一种能够根据播种农艺和播种机作业速度需求,进行排种轴转速精确调节的PID转速控制系统,并利用积分不等式对系统的鲁棒稳定性进行判断。试验结果表明:随着播种机作业速度的提升,排种器主轴转速随之变大,播种作业开始时,排种器主轴转速迅速上升,达到期望目标值;排种器主轴实际运行转速与理论期望转速之间存在一定的偏差,作业速度越高,二者之间的偏差越高。
This paper takes the operation speed of the seeder as the research object,through the analysis of the matching between the rotation speed of the seeder metering shaft and the traveling operation speed of the seeder,establishes the mathematical relationship between the operation speed of the seeder and the rotation axis of the seeder,designs a PID speed control system that can accurately adjust the rotation speed of the metering shaft according to the sowing demand and the operation speed of the seeder,and uses the integral inequality the robust stability of the system is judged by the formula.The experimental results show that with the increase of the operation speed of the seeder,the rotation speed of the main shaft of the seeder also increases.At the beginning of the seeding operation,the rotation speed of the main shaft of the seeder increases rapidly,reaching the expected target value;there is a certain deviation between the actual operation speed and the theoretical expected speed of the main shaft of the seeder,and the higher the operation speed,the higher the deviation between them.
作者
李萍
Li Ping(Harbin Normal University,Harbin 150080,China)
出处
《农机化研究》
北大核心
2023年第1期37-40,共4页
Journal of Agricultural Mechanization Research
基金
黑龙江省高等教育教学改革一般研究项目(SJGY20190364)。
