Sunday 19th of November 2017
 

Application of Fuzzy Control in Central Air-conditioning Terminal Units Energy-saving


Yanqiu Zhao, Yingli Lv, Yong Gu and Shucheng Liu

After introducing the central air-conditioning terminal units system, established a fuzzy control system based on Lonworks. System focuses on the design of fuzzy controller with intelligent nodes, Input signal of fuzzy controller were the concentration and concentration rate of CO2, output signal was the volume of fresh air change, designed a two-dimension fuzzy controller. Based on the search results table, select adjust the fan speed or adjust fresh air valve opening, so as to minimize the amount of fresh air and meet the demands CO2 concentration indoor, so as to achieve the objective of reducing energy consumption and improve air quality. Finally, the fuzzy control algorithm which offline calculated was downloaded to intelligent node, and through experiment verification of the control effect is good.

Keywords: Keywords:fuzzy control, central air-conditioning system, terminal units, energy-saving

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ABOUT THE AUTHORS

Yanqiu Zhao
Yanqiu Zhao, received the Master degrees from Hebei institute of technology of department automation, Tangshan, China, in 2006. Currently she is an lectorate at the Hebei institute of Architecture and Civil Engineering, Zhangjiakou, China. Her current research interests include intelligent control, electrical automation system

Yingli Lv
Yingli Lv Currently she is an lectorate at the Hebei institute of Architecture and Civil Engineering, Zhangjiakou, China. Her current research electrical automation system

Yong Gu
Yong Gu Currently he is an lectorate at the Hebei institute of Architecture and Civil Engineering, Zhangjiakou, China. He current research electrical automation system

Shucheng Liu
Shucheng Liu Currently he work at the Administration of Work Safety Inspection, zhangjiakou, Hebei , China. He current research computer control system


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