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Open AccessArticle

A Decentralized, Flat-Structured Control System for Chiller Plants

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College of Automation, Chongqing University, Chongqing 400044, China
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TongFang Technovator Chongqing Co., Ltd, Chongqing 400044, China
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College of Software, Chongqing University, Chongqing 400044, China
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Clean Energy Research Institute, College of Engineering, University of Miami, Coral Gables, FL 33146, USA
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Building Energy Research Centre, Tsinghua University, Beijing 100084, China
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Authors to whom correspondence should be addressed.
This paper is an extended version of paper published in the 2017 International Conference on Future Buildings and Districts—Energy Efficiency from Nano to Urban Scale, CISBAT 2017 held in Lausanne, Switzerland, 6–8 September 2017.
Appl. Sci. 2019, 9(22), 4811; https://doi.org/10.3390/app9224811
Received: 19 September 2019 / Revised: 7 November 2019 / Accepted: 7 November 2019 / Published: 10 November 2019
This paper presents a novel control system for chiller plants that is decentralized and flat-structured. Each device in chiller plant system is fitted with a smart node. It is a smart agent, which collects, handles and sends out information to its neighbours. All the smart nodes form a network that can realize self-organization and self-recognition. Different kinds of control strategies can be converted into series of decentralized computing processes carried on by the smart nodes. The principle and mechanism of this decentralized, flat-structured control system for chiller plants are described in detail. Then a case study is presented to show how to build the decentralized, flat-structured control system actually. The measured data shows that the decentralized control method is energy efficiency. Moreover, it is much more flexible and scalable compared with the traditional centralized control method. View Full-Text
Keywords: chiller plants; decentralized control; smart device chiller plants; decentralized control; smart device
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MDPI and ACS Style

He, D.; Xiong, Q.; Zhang, X.; Dai, Y.; Jiang, Z. A Decentralized, Flat-Structured Control System for Chiller Plants. Appl. Sci. 2019, 9, 4811.

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