| Cite this article: | 王永涛,刘坚,李家春,等.基于PSO优化Fuzzy PID的水肥装置Smith控制系统设计[J].灌溉排水学报,0,():-. |
| Wang Yongtao,Liu Jian,Li Jiachun,et al.基于PSO优化Fuzzy PID的水肥装置Smith控制系统设计[J].灌溉排水学报,0,():-. |
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| DOI： |
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| Design of Water and Fertilizer Integrated Control System Based on Smith PSO-Fuzzy PID |
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Wang Yongtao1, Liu Jian1, Li Jiachun2, Chen Bo2, Li Qing2
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1.Hunan University;2.Guizhou University
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| Abstract: |
| In this paper, a multi-channel water and fertilizer integrated device is designed, which is composed of seven parts: industrial aluminum profile frame, main pipeline system, fertilizer suction system, fertilizer mixing system, detection system, control system and fertilizer application system. Smith control system of water and fertilizer device (Smith PSO-Fuzzy PID). Taking the target EC value of 2mS/cm as an example, the traditional PID, fuzzy PID (Fuzzy PID) and Smith PSO-Fuzzy PID simulations were carried out by MATLAB. The simulation results show that: using the Smith PSO-Fuzzy PID control method, the steady-state time is about 47s, the overshoot is about 4.83%, and the system EC value is stable at 1.987mS/cm-2.080mS/cm, which is comparable to traditional PID and Fuzzy PID. than, with faster response speed and higher precision. |
| Key words: Smith; PSO; Fuzzy PID control; Water and fertilizer integration |
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