Development of a fuzzy PID controller of air-conditioning unit

摘要

This paper considers the current domestic and international air-conditioning control and temperature characteristics of the respective physical parameters of large inertia and time delay of the characteristics of central air conditioning system on thermal engineering modeling, and the establishment of air-conditioned room and a temperature control valve circuit mathematical model. The Matlab simulation tool experiments show that in the pure PID control, pure fuzzy control and fuzzy PID control of three control methods, the fuzzy PID control makes the system faster response to time, smaller overshoot and less steady state error, has better control quality, which are fuzzy control and PID control of the combined method of air conditioning units can greatly enhance control performance, and has good dynamic and static characteristics, and easy to realize conclusions.