多联变频空调电子膨胀阀的模糊PID控制

Fuzzy-PID control for electronic expanded valve of multi-interrelated frequency-conversion air conditioner

空调制冷系统具有滞后大、非线性等特点,采用普通控制方式时效果不佳。采用模糊PID控制器对系统电子膨胀阀开度进行控制,并设计了模糊控制器,选取了PID控制参数。实践结果表明,该控制方法简单有效,很好地满足了用户的实际需要。

The ordinary control way can not meet requirement because of the time delay and non - linear of an air conditioner system. The fuzzy - PID controller was selected to adjust the electronic expanded valve so as to control air conditioner system. Experimental results show that PID control way is simple and effective, and meet the consumers.