山东农业大学学报(自然科学版)
山東農業大學學報(自然科學版)
산동농업대학학보(자연과학판)
JOURNAL OF SHANDONG AGRICULTURAL UNIVERSITY(NATURAL SCIENCE)
2014年
4期
536-540
,共5页
变量喷雾控制系统%PL%模糊自整定PID控制
變量噴霧控製繫統%PL%模糊自整定PID控製
변량분무공제계통%PL%모호자정정PID공제
Variable spray control system%PLC%fuzzy self-tuning%PID control
变量喷雾控制系统具有非线性、时变性、大滞后等特点,常规PID控制不能满足变量喷雾控制系统在实际作业中理想的控制效果。因此提出了一种基于PLC控制的模糊自整定PID控制方法。PLC控制的模糊自整定PID控制结合了PLC控制灵活、多变和自适应模糊控制等特点,通过对变量喷雾控制系统的数学建模,建立了以电动PI调节阀为核心的模糊自整定PID控制系统。利用Matlab/Simulink 和模糊逻辑工具箱对普通模糊PID控制系统和基于PLC控制的模糊自整定PID控制系统进行Simulink仿真研究。实验结果表明,基于PLC控制的模糊自整定PID控制比常规PID控制在非线性、时变性、减小超调量的方面具有更好的控制品质。
變量噴霧控製繫統具有非線性、時變性、大滯後等特點,常規PID控製不能滿足變量噴霧控製繫統在實際作業中理想的控製效果。因此提齣瞭一種基于PLC控製的模糊自整定PID控製方法。PLC控製的模糊自整定PID控製結閤瞭PLC控製靈活、多變和自適應模糊控製等特點,通過對變量噴霧控製繫統的數學建模,建立瞭以電動PI調節閥為覈心的模糊自整定PID控製繫統。利用Matlab/Simulink 和模糊邏輯工具箱對普通模糊PID控製繫統和基于PLC控製的模糊自整定PID控製繫統進行Simulink倣真研究。實驗結果錶明,基于PLC控製的模糊自整定PID控製比常規PID控製在非線性、時變性、減小超調量的方麵具有更好的控製品質。
변량분무공제계통구유비선성、시변성、대체후등특점,상규PID공제불능만족변량분무공제계통재실제작업중이상적공제효과。인차제출료일충기우PLC공제적모호자정정PID공제방법。PLC공제적모호자정정PID공제결합료PLC공제령활、다변화자괄응모호공제등특점,통과대변량분무공제계통적수학건모,건립료이전동PI조절벌위핵심적모호자정정PID공제계통。이용Matlab/Simulink 화모호라집공구상대보통모호PID공제계통화기우PLC공제적모호자정정PID공제계통진행Simulink방진연구。실험결과표명,기우PLC공제적모호자정정PID공제비상규PID공제재비선성、시변성、감소초조량적방면구유경호적공제품질。
Variable spray control system has nonlinear, time-varying, big lag, etc. Conventional PID control can't satisfy the variable spray control system in the actual operation of the ideal control effect, so as to put forward a fuzzy self-tuning PID control based on PLC control method. PLC control of the fuzzy self-tuning PID control combined with PLC control flexible, changeable and adaptive fuzzy control, etc. through the mathematical modeling of variable spray control system, set up electric PI regulator for the core of the fuzzy self-tuning PID control system. Using Matlab/Simulink and fuzzy logic toolbox to general fuzzy PID control system and fuzzy self-tuning PID control based on PLC control system with Simulink simulation. The experimental results showed that fuzzy self-tuning PID control based on PLC control had the better quality than the conventional PID control in the nonlinear, time-varying and the reduce of the overshoot amount.