Abstract

In modern times, the industrial automation level of industries has become an important symbol to measure the level of modernization. The automation level of central air-conditioning system can also impact on people's economic life and social standards of living. But since the central air conditioning system is a large-delay, nonlinear time-varying systems, affecting the control results of a simple fuzzy controller [1]. A specific design method of the fuzzy PID controller with parameters self-tuning is given in this article, and the simulation results show that fuzzy PID control with parameter self-tuning can achieve better control requirements. The paper also introduces the hardware and software design of the central air-conditioning temperature and humidity control system in detail. It is proved that using Fuzzy PID control algorithm to control indoor temperature and humidity can as well as conserves energy.

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