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Economic power dispatch in smart grids: a framework for distributed optimization and consensus dynamics
Yu, Wenwu1,5; Li, Chaojie2; Yu, Xinghuo2; Wen, Guanghui1; Lu, Jinhu3,4
2018
Source PublicationSCIENCE CHINA-INFORMATION SCIENCES
ISSN1674-733X
Volume61Issue:1Pages:16
AbstractBy using the distributed consensus theory in multi-agent systems, the strategy of economic power dispatch is studied in a smart grid, where many generation units work cooperatively to achieve an optimal solution in a local area. The relationship between the distributed optimization solution and consensus in multi-agent systems is first revealed in this paper, which can serve as a general framework for future studies of this topic. First, without the constraints of capacity limitations, it is found that the total cost for all the generators in a smart grid can achieve the minimal value if the consensus can be reached for the incremental cost of all the generation units and the balance between the supply and demand of powers is kept. Then, by designing a distributed consensus control protocol in multi-agent systems with appropriate initial conditions, incremental cost consensus can be realized and the balance for the powers can also be satisfied. Furthermore, the difficult problem for distributed optimization of the total cost function with bounded capacity limitations is also discussed. A reformulated barrier function is proposed to simplify the analysis, under which the total cost can reach the minimal value if consensus can be achieved for the modified incremental cost with some appropriate initial values. Thus, the distributed optimization problems for the cost function of all generation units with and without bounded capacity limitations can both be solved by using the idea of consensus in multi-agent systems, whose theoretical analysis is still lacking nowadays. Finally, some simulation examples are given to verify the effectiveness of the results in this paper.
Keywordpower dispatch strategy consensus incremental cost capacity limitations distributed protocol multi-agent systems
DOI10.1007/s11432-016-9114-y
Language英语
Funding ProjectNational Key Research and Development Program of China[2016YFB0800401] ; National Natural Science Foundation of China[61673107] ; National Natural Science Foundation of China[61673104] ; National Natural Science Foundation of China[61621003] ; National Natural Science Foundation of China[61532020] ; National Ten Thousand Talent Program for Young Top-notch Talents ; Cheung Kong Scholars Programme of China for Young Scholars ; Six Talent Peaks of Jiangsu Province of China[2014-DZXX-004] ; Fundamental Research Funds for the Central Universities of China[2242016K41058]
WOS Research AreaComputer Science
WOS SubjectComputer Science, Information Systems
WOS IDWOS:000409915100011
PublisherSCIENCE PRESS
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.amss.ac.cn/handle/2S8OKBNM/26407
Collection系统科学研究所
Affiliation1.Southeast Univ, Sch Math, Nanjing 210096, Jiangsu, Peoples R China
2.RMIT Univ, Sch Engn, Melbourne, Vic 3001, Australia
3.Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.King Abdulaziz Univ, Fac Sci, Dept Math, NAAM Res Grp, Jeddah 21589, Saudi Arabia
Recommended Citation
GB/T 7714
Yu, Wenwu,Li, Chaojie,Yu, Xinghuo,et al. Economic power dispatch in smart grids: a framework for distributed optimization and consensus dynamics[J]. SCIENCE CHINA-INFORMATION SCIENCES,2018,61(1):16.
APA Yu, Wenwu,Li, Chaojie,Yu, Xinghuo,Wen, Guanghui,&Lu, Jinhu.(2018).Economic power dispatch in smart grids: a framework for distributed optimization and consensus dynamics.SCIENCE CHINA-INFORMATION SCIENCES,61(1),16.
MLA Yu, Wenwu,et al."Economic power dispatch in smart grids: a framework for distributed optimization and consensus dynamics".SCIENCE CHINA-INFORMATION SCIENCES 61.1(2018):16.
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