文献类型： 外文期刊

作者： Liu, Yanbin ¹ ; Li, Yaoming ¹ ; Ji, Kuizhou ¹ ; Yu, Zhiwu ¹ ; Ma, Zheng ² ; Xu, Lizhang ² ; Niu, Changhe ³ ;

作者机构： 1.Jiangsu Univ, Coll Agr Engn, Zhenjiang 212013, Jiangsu, Peoples R China

2.Jiangsu Univ, Key Lab Theory & Technol Intelligent Agr Machinery, Zhenjiang 212013, Jiangsu, Peoples R China

3.Xinjiang Acad Agr Sci, Res Inst Agr Mechanisat, Urumqi 830000, Xinjiang, Peoples R China

关键词： Adaptive contracting-expanding factor; Variable universe; Threshing gap; Feeding rate; Grain entrainment loss rate

期刊名称：BIOSYSTEMS ENGINEERING （ 影响因子：5.3； 五年影响因子：5.9 ）

ISSN： 1537-5110

年卷期： 2025 年 254 卷

页码：

收录情况： SCI

摘要： It is important to adjust the diameter of the hydraulic variable-diameter threshing drum adaptively according to the change of feeding rate for the combine harvester. To solve the problem that the drum diameter cannot be adaptively controlled, the variable universe fuzzy PID (VUFPID) controller with adaptive contracting-expanding factor was developed and its field performance was verified. The VUFPID controller with adaptive contracting-expanding factor and the fuzzy PID controller were established using MATLAB, and the simulation was compared and analysed. The simulation results showed that the VUFPID controller with adaptive contracting-expanding factor had better control characteristics. Field experiment results showed that the adaptive control system can adjust the drum diameter to change the threshing gap in real time according to the change of feeding rate. When the adaptive control system was turned on, the average grain entrainment loss rate was reduced by 8.72 % compared with that without the adaptive control system.