农机化研究2024，Vol.46Issue(2)：97-102,6.
基于PID调控的割台仿形高度控制系统的设计
Design of Header Profiling Height Control System Based on PID Regulation
摘要
Abstract
In order to reduce the grain loss caused by inappropriate header height during the harvest operation of grain combine harvester,and reduce the impact of too high stubble height on subsequent sowing links.In this paper,the sen-sor is used to monitor the fluctuation of the ground,and a header height adaptive control system based on PID regulation is designed.The ground profiling monitoring mechanism and header height feedback mechanism based on angle sensor are designed,and the linear relationship between header height and sensor voltage signal is calibrated and fitted.Install an integrated electromagnetic proportional valve to replace the original header control electronic directional valve,and con-duct PWM control test.The structure and electro-hydraulic control principle of the whole adaptive control system are an-alyzed,and several groups of field control experiments are carried out.Experiments show that the designed header height adaptive control system based on ground profiling has stable response speed and good control effect.When working in plain area,it has obvious advantages compared with the traditional manual control of header,and can meet the require-ments of 5-11km/h harvesting speed in plain terrain environment.This study provides a theoretical basis for the control strategy of header device for the research and design of unmanned grain combine harvester.关键词
谷物收获机/割台/PID控制/液压系统Key words
grain harvester/harvester header/PID control/hydraulic system分类
农业科技引用本文复制引用
王志超,杨然兵,陈栋泉,王婕,李晓波..基于PID调控的割台仿形高度控制系统的设计[J].农机化研究,2024,46(2):97-102,6.基金项目
山东省泰山产业领军人才工程高效生态农业创新类项目(LJNY201804) （LJNY201804）
