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Heating control strategy for variable refrigerant flow air conditioning system with multi-module outdoor units
Tu, Qiu1,2; Feng, Ziping1,2; Mao, Shoubo3; Dong, Kaijun1,2; Xiao, Rui1,2; Song, Wenji1,2
2010-11-01
Source PublicationENERGY AND BUILDINGS
ISSN0378-7788
Volume42Issue:11Pages:2021-2027
Contribution Rank[Tu, Qiu; Feng, Ziping; Dong, Kaijun; Xiao, Rui; Song, Wenji] Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China; [Tu, Qiu; Feng, Ziping; Dong, Kaijun; Xiao, Rui; Song, Wenji] Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China; [Mao, Shoubo] Haier Air Conditioning Elect Co LTD, Qingdao 266510, Peoples R China
Corresponding Authortuqiuky@163.com
AbstractThe heating control strategy is key technology for stable and reliable heating operation of variable refrigerant flow air conditioning system with multi-module outdoor units. The synoptic control strategy is that the host module coordinates the system operation and adjusts the operation frequency of every module based on equal frequency allocation principle for suction pressure balance among modules. The heating control model including heating frequency adjustment, module switching condition and frequency allocation model has been built. Considering the discharge pressure disturbance, a certain discharge pressure region is taken as the control objective to adjust the frequency. And considering the lag between pressure and frequency, the restriction condition of discharge pressure and a certain judgment time are introduced into the model to avoid frequent module switching. Furthermore, different frequency allocation models have been built for increase and decrease of module number. In the model, when the module number increases and evenly allotted frequency to every module is less 70 Hz, one or two certain frequencies 70 Hz are distributed to the pre-existing thermo-on module(s) and the remaining frequency is distributed to ensuing thermo-on module so as to avoid sharp frequency fluctuation and inferior heating effect. Experiments demonstrate the feasibility of the control strategy. (C) 2010 Elsevier B.V. All rights reserved.
SubtypeArticle
Other AbstractThe heating control strategy is key technology for stable and reliable heating operation of variable refrigerant flow air conditioning system with multi-module outdoor units. The synoptic control strategy is that the host module coordinates the system operation and adjusts the operation frequency of every module based on equal frequency allocation principle for suction pressure balance among modules. The heating control model including heating frequency adjustment, module switching condition and frequency allocation model has been built. Considering the discharge pressure disturbance, a certain discharge pressure region is taken as the control objective to adjust the frequency. And considering the lag between pressure and frequency, the restriction condition of discharge pressure and a certain judgment time are introduced into the model to avoid frequent module switching. Furthermore, different frequency allocation models have been built for increase and decrease of module number. In the model, when the module number increases and evenly allotted frequency to every module is less 70 Hz, one or two certain frequencies 70 Hz are distributed to the pre-existing thermo-on module(s) and the remaining frequency is distributed to ensuing thermo-on module so as to avoid sharp frequency fluctuation and inferior heating effect. Experiments demonstrate the feasibility of the control strategy.
KeywordVariable Refrigerant Flow Inverter Heating Control Strategy Frequency
Subject AreaConstruction & Building Technology ; Energy & Fuels ; Engineering
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.enbuild.2010.06.010
WOS Subject ExtendedConstruction & Building Technology ; Energy & Fuels ; Engineering
URL查看原文
Indexed BySCI
Language英语
Funding OrganizationHaier Air-Conditioning Electronic Co. LTD
WOS SubjectConstruction & Building Technology ; Energy & Fuels ; Engineering, Civil
WOS IDWOS:000282404800008
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/8476
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Guangdong, Peoples R China
2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
3.Haier Air Conditioning Elect Co LTD, Qingdao 266510, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Tu, Qiu,Feng, Ziping,Mao, Shoubo,et al. Heating control strategy for variable refrigerant flow air conditioning system with multi-module outdoor units[J]. ENERGY AND BUILDINGS,2010,42(11):2021-2027.
APA Tu, Qiu,Feng, Ziping,Mao, Shoubo,Dong, Kaijun,Xiao, Rui,&Song, Wenji.(2010).Heating control strategy for variable refrigerant flow air conditioning system with multi-module outdoor units.ENERGY AND BUILDINGS,42(11),2021-2027.
MLA Tu, Qiu,et al."Heating control strategy for variable refrigerant flow air conditioning system with multi-module outdoor units".ENERGY AND BUILDINGS 42.11(2010):2021-2027.
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