基于PSO算法的增氧灌溉TDF-IMC-PID控制研究  

Research on TDF-IMC-PID control of oxygenated irrigation based on PSO algorithm

作　　者：刘德 马月虹 刘娜[1,2] 王彦 LIU De;MA Yuehong;LIU Na;WANG Yan(College of Mechanical and Electrical Engineering,Xinjiang Agricultural University,Urumqi 830052,China;Agricultural Mechanization Institute,Xinjiang Academy of Agricultural Science,Urumqi 830091,China)

机构地区：[1]新疆农业大学机电工程学院,新疆乌鲁木齐830052 [2]新疆农业科学院农业机械化研究所,新疆乌鲁木齐830091

出　　处：《中国测试》2021年第7期84-91,共8页China Measurement & Test

基　　金：新疆自治区科技支疆项目(2017E0255)。

摘　　要：传统的灌溉方式会产生水氧矛盾,从而造成根部不同程度的缺氧,改善作物根部的呼吸环境可提高农作物产量。此次试验地点在新疆农科院乌鲁木齐的试验日光温室中进行,由温室蓄水池供水。以通气量和通气含氧量以及进出水量为影响因素进行单因素试验,试验结果得出:提高气液混合泵的通气量,通气含氧量以及减少进出水量,均会缩短曝气水箱中的氧浓度达到饱和值的时间。结合可行性分析,选择进出水量为控制输入量,并结合相关优化算法对控制器参数进行优化整定,在Matlab平台的仿真结果和相关验证均表明:PSO-TDF-IMC-PID控制器具有较好的控制能力,较常规PID控制,能缩短系统达到稳态的响应时间,增加系统鲁棒性,减少超调量。Traditional irrigation methods will produce water oxygen contradiction,which will cause different degrees of root hypoxia,improve the respiratory environment of crop roots,and increase crop yield.The experiment was carried out in the greenhouse in Urumqi,Xinjiang Academy of Agricultural Sciences.The results show that the time of reaching saturation value of oxygen concentration in the aeration tank can be shortened by increasing the ventilation capacity,aeration oxygen content and reducing the water inflow and outflow of the gas-liquid mixing pump.Combined with the feasibility analysis,the inlet and outlet water is selected as the control input,and the parameters of the controller are optimized and adjusted with the relevant optimization algorithm.The simulation results and relevant verification on Matlab platform show that the PSO-TDF-IMC-PID controller has better control ability.Compared with the conventional PID control,PSO-TDF-IMC-PID controller can shorten the steady-state response time of the system,increase the robustness of the system and reduce the overshoot.

关 键 词：灌溉增氧 PSO-TDF-IMC-PID 粒子群算法 参数优化 

分 类 号：S607[农业科学—园艺学]