An Optimal Hybrid Control Method for Energy-Saving of Chilled Water System in Central Air Conditioning
Joint Authors
Liu, Yongqiang
Zhang, Yan
Chu, Xiaoli
Source
Journal of Control Science and Engineering
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-12-27
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Electronic engineering
Information Technology and Computer Science
Abstract EN
Chilled water system of central air conditioning is a typical hybrid system; variable frequency behavior with amplitude limited of pumps reflects continuous and discrete dynamic characteristics.
The way of energy-saving is variable water volume, via variable frequency behavior of pumps to gain adjustment of power consumption.
Facing the situation of the variable frequency pumps with parallel operation, single continuous or discrete modeling cannot reflect the hybrid features.
Thus, the control method will have some questions, such as bad energy-saving effect, difficult accurate adjustment of cold capacity, and low running energy efficiency.
However, hybrid system modeling can reflect hybrid dynamic behavior of pumps, which is combining continuous and discrete features.
The questions of nonlinear and multiparameters can be solved by control method based on hybrid system.
Here, an optimum control method is proposed with the principle of the minimum, by setting the minimum power consumption as the performance function in fixed time, which realizes variable control of pumps and accurate adjustment of temperature inside room.
At last, it shows the system characteristics and energy-saving affection by hybrid system modeling and the optimum control method.
American Psychological Association (APA)
Zhang, Yan& Chu, Xiaoli& Liu, Yongqiang. 2018. An Optimal Hybrid Control Method for Energy-Saving of Chilled Water System in Central Air Conditioning. Journal of Control Science and Engineering،Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1182967
Modern Language Association (MLA)
Zhang, Yan…[et al.]. An Optimal Hybrid Control Method for Energy-Saving of Chilled Water System in Central Air Conditioning. Journal of Control Science and Engineering No. 2018 (2018), pp.1-9.
https://search.emarefa.net/detail/BIM-1182967
American Medical Association (AMA)
Zhang, Yan& Chu, Xiaoli& Liu, Yongqiang. An Optimal Hybrid Control Method for Energy-Saving of Chilled Water System in Central Air Conditioning. Journal of Control Science and Engineering. 2018. Vol. 2018, no. 2018, pp.1-9.
https://search.emarefa.net/detail/BIM-1182967
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1182967