空调房间温度模糊分数阶PID控制器的设计

针对具有大时滞、大惯性和时变等动态特性的空调房间对象,综合模糊控制与分数阶PID控制理论,提出了模糊分数阶PID室温控制器的设计方法.首先,对于空调房间温度对象,进行数学建模.然后,运用模糊控制规则,获取相应的分数阶PID室温控制器的控制参数,从而构建出空调房间温度的模糊分数阶PID控制系统.并且,通过数值仿真对其进行验证.结果表明,该模糊分数阶PID室温控制器是可行的,与分数阶PID控制器相比,具有更好的控制性能.

Design of Fuzzy Fractional Order PID Controller for the Temperature in Air-conditioning Room

Aiming at the dynamic characteristic of air-conditioning room plant with large time delay,large inertia,and time-varying,this paper proposes a design method of the fuzzy fractional order PID controller for indoor temperature by synthesizing the control theories of fuzzy and fractional PID.Firstly,a mathematical model associated with the temperature plant of an air-conditioning room is established.Secondly,the control parameters of the fuzzy fractional order PID controller for indoor temperature are obtained by the fuzzy control rules.Accordingly,the fuzzy fractional order PID control system for the temperature in an air-conditioning room can be designed and be verified through numerical simulation.The results show that the proposed controller is feasible in theory.Moreover,its control performance is better than that of the corresponding fractional order PID control system.