Research Based on the Actual Project of Central Air Conditioning Intelligent Frequency Conversion System

Abstract:

At present, with the development of science and technology, central air conditioning systems had made great progress. Because of the earlier central air conditioning system have some shortcomings. Such as hunge energy consumption, water cycle equipment wear. Now engineer put forward a variety of solutions. One of the most mainstream solutions is technology of frequency conversion water cycle central air-conditioning system and the central air conditioning system of intelligent sending wind energy saving technology. This design is for central air conditioning system of a company's actual renovation project. It is equipped with technology of frequency conversion water cycle central air-conditioning system. Mainly consist of the control part, frequency converter part and the water cycle part. This paper firstly introduces the working principle of general frequency converter PID control central air conditioning system. And from the control cabinet part, motor start part, PLC control part, and the frequency converter set part introduces the design. And analyzed the operating results. Because of using negative feedback, the temperature of system become stable. Through PLC intelligent control, can also make the system more energy conservation and environmental protection. Through the analysis of the actual system running data, verified the system has a considerable energy saving ability.

• Periodical: Applied Mechanics and Materials (Volumes 672-674)
• Pages: 1688-1692
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.672-674.1688
• Online since: October 2014
• Authors: Yan Ling Lv*, Chong Teng, Wen Hai Chen
• Keywords: Energy Conservation, Frequency Converting Control, PLC

References

[1] Lin Zhicheng, Centrifugal compressor is analysed, Guangdong Science & Technology, vol. 8, 2008, pp.46-47. （in Chinese）.

[2] Zhou Meilan, Zhou Feng, Wang Yueyu, PLC electrical control and configuration design, science press, vol. 2, 2009, pp.1-2. （in Chinese）.

[3] Zhang Tao, Zhang Li, Shang Xi Control System Reform Design of Central Air Conditioning Based on PLC ＆ Frequency Conversion Technology, Electric Machines & Control Application, vol. 39, 2012, pp.55-56. （in Chinese）.

[4] ZHU Yi, OUYANG Xikuan, Development Trend and Control Methods of Energy Saving in Central Air Conditioning System, Energy Research and Management, vol. 1, 2014, pp.88-89（in Chinese）.

[5] Zheng Zhuo , Adaptive fuzzy control and the application of PLC in the central air conditioning control system, " , Journal of Gansu Lianhe University(Natural Science Edition), vol. 25, 2011, pp.74-75.