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International Journal of Frontiers in Engineering Technology, 2023, 5(9); doi: 10.25236/IJFET.2023.050910.

Design Method of Intelligent Control of Central Air Conditioning through PLC

Author(s)

Li Mingxi, Zhang Qingsi, Li Fuyun, Li Qi

Corresponding Author:
Zhang Qingsi
Affiliation(s)

University of Science and Technology Liaoning, Anshan, China

Abstract

The air-conditioning industry has more and more strict control requirements on the use of electrical power consumption, but the energy consumption of the existing central air-conditioning system is always high. Taking full advantage of the load uncertainty of central air conditioning, this paper designs a central air conditioning system with high automatic control function by using PLC, frequency converter and other devices. In this system, the motor is equipped with frequency converter to realize speed control, and variable air volume control and variable flow control are adopted for different loads to reduce invalid energy consumption. The software control flow and configuration monitoring interface are designed, so as to realize the variable frequency operation control of central air conditioning and finally realize the purpose of variable frequency energy saving.

Keywords

Central air conditioning; Control system; PLC; Frequency converter

Cite This Paper

Li Mingxi, Zhang Qingsi, Li Fuyun, Li Qi. Design Method of Intelligent Control of Central Air Conditioning through PLC. International Journal of Frontiers in Engineering Technology (2023), Vol. 5, Issue 9: 53-57. https://doi.org/10.25236/IJFET.2023.050910.

References

[1] Yang Zhongxing. PLC control system design of 400t single-arm hydraulic press [J]. Automation Application, 2016(12), 45-46

[2] Yong Yang, Wei Rui. Application of simulation software in the design of PLC control system [J]. Computer Knowledge and Technology, 2008(15), 102-107. 

[3] Guo Jiahai, Zhang Wenhui. Design of stepless speed control system based on PLC [J]. Information and Communication, 2014(04), 213-222. 

[4] Lv Wei. Design of automatic PLC control system for 265m ~ 2 sintering machine [J]. Shanxi Metallurgy, 2017(03), 45-47

[5] Peng Kunli, Qin Wenbin, Song Yu, Wang Zhiyong. Design of PLC control system for traffic lights [J]. Industrial Control Computer, 2009(03). 88-89

[6] Xiao Nan. Design of automatic batching control system for production line based on PLC [J]. Electronic Manufacturing, 2022(05). 99-103

[7] Yang Jun. Design of combined control system for communication system based on PLC and touch screen [J]. Information and Computer (Theoretical Edition), 2021(04), 33-37. 

[8] Xu Bo. Design and Research of Blast Furnace Automation Control System Based on PLC [J]. Computer, 2017(08), 45-48

[9] Shang Wenbin. Design of control system of heat exchange station based on embedded PLC [J]. New Industrialization, 2022(08)3-4

[10] Zhang Wenjian, He Zhengjun, Zhang Jinhui. control system design of pipe bender based on PLC [J]. Coal  Mining Machinery, 2013(01), 110-112.