Economic power dispatch in smart grids: a framework for distributed optimization and consensus dynamics

doi:10.1007/s11432-016-9114-y

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	Economic power dispatch in smart grids: a framework for distributed optimization and consensus dynamics
	Yu, Wenwu 1,5; Li, Chaojie 2; Yu, Xinghuo 2; Wen, Guanghui 1; Lu, Jinhu3,4
刊名	SCIENCE CHINA-INFORMATION SCIENCES
	2018
卷号	61 期号:1 页码:16
关键词	power dispatch strategy consensus incremental cost capacity limitations distributed protocol multi-agent systems
ISSN号	1674-733X
DOI	10.1007/s11432-016-9114-y
英文摘要	By 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.
资助项目	National 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研究方向	Computer Science
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000409915100011
内容类型	期刊论文
源URL	[http://ir.amss.ac.cn/handle/2S8OKBNM/26406]
专题	系统科学研究所
通讯作者	Yu, Wenwu
作者单位	1.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
推荐引用方式 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.