基于模糊控制技术的中央空调控制器的仿真研究

A simulation study of a central air-conditioning controller based on the fuzzy control technology

针对常规模糊控制技术的不足,从模糊控制的本质出发,分析了现有改善模糊控制器性能的方法。在此基础上,提出了一种变论域模糊控制加PID控制器的方案,设计了相应的控制器,并以中央空调系统为控制对象进行了仿真实验。仿真结果表明,该模糊控制比常规模糊控制的超调量小,稳态精度高,抗干扰性较好,模糊控制器的性能得到了较大的提高,而且简单易行,适合于硬件实现。

In view Of the fuzzy insufficiency of the conventional fuzzy control technology and proceeding from the fuzzy control essence, the toothed has been analyzed about the existing improvement of the fuzzy control performance,thus proposing a conception of fuzzy control with the variable universe of discourse plus the PID controller and by taking disigning a corresponding controller. A simulation experiment is made an air-conditioning system as a controlled object. The sumulation result indicates that this fuzzy control has a smaller overshoot than the conventional one along with high-accuracy stability and better anti-jamming performance. The fuzzy control performance has got much improved, which are helpful to realizing the hardware.