【作者】 苏涛； 王鹏新； 邢雅娟；

【Author】 SU Tao,WANG Peng-xing,XING YA-juan(College of Information and Electrical Engineering,China Agricultural University,Beijing 100083,China)

【机构】 中国农业大学信息与电气工程学院；

【摘要】 对温室温度的控制方法进行综述。由于温室环境是大滞后、大惯性、非线性的复杂系统,用传统的方法进行控制很难达到理想的技术指标。为了提高控制精度,改善系统的动态、稳态性能,提出了基于Fuzzy-PI的双模控制方法,并在MATLAB语言的SIMULINK平台下对Fuzzy-PI、Fuzzy和反馈等方法进行仿真比较。通过仿真比较可得:Fuzzy-PI控制具有更小的超调,无振荡,平稳性好,达到稳定状态的时间短,稳态误差小,其动态特性和静态特性令人满意。更多还原

【Abstract】 Temperature control in greenhouse apparatus was introduced.The greenhouse is a big-lag,big-inertia and non-linear system,ideal target is not gained by traditional way.Fuzzy-PI two-model control system was designed,which improved the dynamic and static performance and the control precision of system.This system used MATLAB SIMULINK to simulate.The results were compared between the Fuzzy-PI,Fuzzy and feedback ways.It is shown that the Fuzzy-PI two-model control can achieve better results.This system is very easy to control,and has no shaking,fine fixity,short time to reach the stable state,little error of the stable state.更多还原