Temperature control system design for fresh air-conditioning based on fuzzy algorithm

Abstract:A fresh air system with solar energy and phase-change thermal storage is introduced in this paper. Through the heat of solar and the latent heat storage properties of phase change heat storage device, it provides indoor with certain temperature as the auxiliary heating system. This paper first investigates the principle and three modes of the fresh air system. Based on the analysis of operating characteristics of fresh air system, the fuzzy algorithm is proposed to apply to temperature control of fresh air system. Mamdani type fuzzy controller with multiple input single outputs (MISO) is designed, with which it realizes fresh air temperature control through automatic flow rate adjustment of heat water of fan coil. The results show that: the scheme of the fresh air control system design based on fuzzy algorithm is reasonable with high stability and high precision, small overshoot, and the system has the advantages of simple structure and convenient debugging.

Volume:36

Issue:SUPPL.2

Translation or Not:no