模糊自适应PI法控制空调系统温度的研究

Research of Fuzzy Self-adaptive PI Control in the Air Conditioning Systems

针对空调系统控制对象多变量、非线性、大滞后、时变性的特点,将PI控制和模糊控制结合起来,提出了模糊自适应PI控制,并进行了仿真。仿真结果表明这种方法的控制效果优于常规的PI控制,并消除了模糊控制稳态误差较大的缺点,具有响应时间短、控制精度高、稳定性好等优点。

According to the characters of control objects of air conditioning systems such as multi variable, nonlinearity,time lag and time variation,fuzzy self-adaptive PI control which combines fuzzy control and PI control were proposed and simulated. The results of simulation indicate that the control effect of this method is better than PI control, and avoid larger steady state error of fuzzy control. The method has advantages of shorter time response, higher precision and better stability.