摘要
温度系统具有滞后现象严重等非线性特点,很难建立精确的数学模型,基于数学模型的控制方法很难实现高精度的温度控制。为此,本文提出了一种不依赖数学模型的基于模糊控制的PID温度控制方法。通过在MATLAB Simulink环境中利用Fuzzy工具箱建立仿真系统,并进行仿真实验研究,其结果表明采用模糊PID控制方法的系统的动、静态性能和精度得到明显提高。
The temperature system has some nonlinear characteristic such as the serious hysteresis phenomenon,it is very hard to control the process. In order to realizing high precision control,we give the controlled object the unit step signal and the constant signal,try to determine the dynamic characteristics and lmmunity characteristics of the system. Using Simulink and Fuzzy toolbox of MATLAB to achieve simulation,the result is that,after adding the Fuzzy PID controller,the static and dynamic performance of the system improved.
出处
《现代机械》
2014年第6期55-57,79,共4页
Modern Machinery
关键词
温度控制
模糊PID控制器
动态性能
精度
fuzzy PID controller
temperature control
dynamic performance
accuracy
simulation
