A decentralized, model-free, global optimization method for energy saving in heating, ventilation and air conditioning systems
| Autor: | Jianchun Xing, Jiang Ziyan, Shiqiang Wang, Dai Yunchuang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
business.industry
020209 energy 02 engineering and technology Building and Construction 010501 environmental sciences Model free 01 natural sciences Automotive engineering law.invention law HVAC Ventilation (architecture) 0202 electrical engineering electronic engineering information engineering Environmental science business Global optimization Energy (signal processing) 0105 earth and related environmental sciences |
| Zdroj: | Building Services Engineering Research and Technology. 41:414-428 |
| ISSN: | 1477-0849 0143-6244 |
| DOI: | 10.1177/0143624419862707 |
| Popis: | To solve the challenges of high labour and maintenance cost while saving energy in engineering, a decentralized agent-based model-free global optimization method for heating, ventilation and air conditioning systems is proposed. In this novel optimization method, each updated smart equipment is connected according to the physical relationships, such that it can communicate and collaborate with adjacent nodes. Furthermore, to achieve the overall optimal operation of heating, ventilation and air conditioning systems, a decentralized evolutionary algorithm is developed. With the decentralized algorithm executed in all smart nodes in parallel with the feedback of sensor measurements instead of accurate device models, the system can achieve optimal coordination and avoid conflicts between correlated devices. The equivalence between the centralized and decentralized methods is proven. This method is confirmed to be effective through hardware testing based on actual engineering. Practical application: The traditional optimization methods for heating, ventilation and air conditioning are based on a centralized structure with a series of deficiencies, such as high maintenance and labour costs, link congestion and operational lag. This study presents a novel decentralized structure constructed using basic physical relations and a model-free method that possesses the advantages of plug-and-play, rapid development, great flexibility and convenience for engineering implementation without having to build a central monitor. The case study results validate the efficiency and effectiveness of the proposed method. |
| Databáze: | OpenAIRE |
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