A hierarchical control scheme with bi-level communication networks for the interconnected DC microgrids cluster

doi:10.1016/j.ijepes.2022.108342

	A hierarchical control scheme with bi-level communication networks for the interconnected DC microgrids cluster
	Li, Li 2; Dong, Mi 2; Chen, Xiaojiao 1; Yi, Feng 2; Chen, Guo 2; Song, Dongran 2; Yang, Jian 2
刊名	INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS
	2022-11-01
卷号	142
关键词	Hierarchical control DC microgrids cluster Alternating direction multiplier method Fast second-order distributed average consensus algorithm Voltage control without droop
ISSN号	0142-0615
DOI	10.1016/j.ijepes.2022.108342
通讯作者	Dong, Mi(mi.dong@csu.edu.cn)
英文摘要	This paper proposes a hierarchical control scheme based on distributed alternating direction method of multipliers (ADMM) for the interconnected DC microgrids cluster. This scheme is fully distributed and consists of three coordinated control levels through bi-level distributed communication networks. The constraints of the economic dispatch problem are decoupled for tertiary control and decomposed into global and local optimization problems using the ADMM framework. To realize parallel computing of ADMM, we designed a fast second-order distributed average consensus algorithm to estimate the global average exchanged value and the average output power of a single microgrid, thus removing the coupling within the microgrids cluster and individual microgrid. Considering the voltage deviation caused by the traditional droop control, voltage control without droop based on the distributed algorithm is proposed to realize voltage restoration and power distribution among dispatchable generators for individual microgrid, combined with traditional primary and secondary control. Numerical simulations of an off-grid microgrids cluster are designed to validate the effectiveness of the proposed control method. Results show that the proposed hierarchical control scheme can ensure the independence and privacy of information, which is beneficial to solve technical and economic challenges brought by centralized optimization. In addition, the proposed algorithm can be applied to more realistic scenarios, such as conditions for time-varying loads and cost functions.
资助项目	National Natural ScienceFoundation of China[51777217] ; Natural Science Foundation of Hunan-Province[2020JJ4744]
WOS关键词	DISTRIBUTED SECONDARY CONTROL ; ENERGY MANAGEMENT ; VOLTAGE RESTORATION ; COOPERATIVE CONTROL ; STABILITY ANALYSIS ; MULTIAGENT SYSTEM ; DROOP CONTROL ; STRATEGY ; DELAY
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000809796300012
资助机构	National Natural ScienceFoundation of China ; Natural Science Foundation of Hunan-Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/131275]
专题	中国科学院合肥物质科学研究院
通讯作者	Dong, Mi
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Cent South Univ, Sch Automation, Changsha 410083, Peoples R China
推荐引用方式 GB/T 7714	Li, Li,Dong, Mi,Chen, Xiaojiao,et al. A hierarchical control scheme with bi-level communication networks for the interconnected DC microgrids cluster[J]. INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS,2022,142.
APA	Li, Li.,Dong, Mi.,Chen, Xiaojiao.,Yi, Feng.,Chen, Guo.,...&Yang, Jian.(2022).A hierarchical control scheme with bi-level communication networks for the interconnected DC microgrids cluster.INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS,142.
MLA	Li, Li,et al."A hierarchical control scheme with bi-level communication networks for the interconnected DC microgrids cluster".INTERNATIONAL JOURNAL OF ELECTRICAL POWER & ENERGY SYSTEMS 142(2022).