Enhanced proportional power sharing strategy based on adaptive virtual impedance in low-voltage networked microgrid

doi:10.1049/iet-gtd.2018.0051

	Enhanced proportional power sharing strategy based on adaptive virtual impedance in low-voltage networked microgrid
	Zhang, Jiyuan 1,2; Shu, Jie 1,2; Ning, Jia 1,2; Huang, Lei 2; Wang, Hao 2
刊名	IET GENERATION TRANSMISSION & DISTRIBUTION
	2018-06-19
卷号	12 期号:11 页码:2566-2576
关键词	distributed power generation power generation control reactive power control enhanced proportional power sharing strategy adaptive virtual impedance loop low-voltage networked microgrid electrical distance variation electric network complexity feeder impedances variations distributed generation units load points mismatched impedance improved R-L type droop control real powers reactive powers integral controllers virtual inductive components virtual resistive components MATLAB Simulink
ISSN号	1751-8687
DOI	10.1049/iet-gtd.2018.0051
通讯作者	Shu, Jie(shujie@ms.giec.ac.cn)
英文摘要	The variation of the electrical distance and the complexity of the electric network lead to the variations of feeder impedances between distributed generation units and load points. It is determined that conventional droop control has drawbacks in achieving accurate power sharing due to the effects of mismatched impedance. Therefore, this study proposes an enhanced proportional power sharing strategy based on adaptive virtual impedance in a low-voltage networked microgrid. The improved R-L type droop control can effectively prevent the coupling between real and reactive powers. Furthermore, an adaptive virtual impedance loop is introduced to counteract the feeder voltage drop. The method utilises real and reactive power mismatching which were fed into integral controllers, and then generates the virtual inductive and resistive components, respectively. This proposed strategy is able to enhance power sharing accuracy without requiring the knowledge of feeder impedance, and it is more adaptive to the complex impedance. The simulation experiments carried out under the environment of MATLAB/Simulink, and results verify the effectiveness of the proposed strategy.
资助项目	National Key Research and Development Program[2017YFB093401] ; Guangzhou Innovation Platform and Sharing Project[201509010018]
WOS关键词	ISLANDED MICROGRIDS ; AC MICROGRIDS ; INVERTERS ; PARALLEL ; DESIGN ; ELECTRONICS ; ALGORITHM ; SYSTEM
WOS研究方向	Engineering
语种	英语
出版者	INST ENGINEERING TECHNOLOGY-IET
WOS记录号	WOS:000434679200008
资助机构	National Key Research and Development Program ; Guangzhou Innovation Platform and Sharing Project
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/23599]
专题	中国科学院广州能源研究所
通讯作者	Shu, Jie
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jiyuan,Shu, Jie,Ning, Jia,et al. Enhanced proportional power sharing strategy based on adaptive virtual impedance in low-voltage networked microgrid[J]. IET GENERATION TRANSMISSION & DISTRIBUTION,2018,12(11):2566-2576.
APA	Zhang, Jiyuan,Shu, Jie,Ning, Jia,Huang, Lei,&Wang, Hao.(2018).Enhanced proportional power sharing strategy based on adaptive virtual impedance in low-voltage networked microgrid.IET GENERATION TRANSMISSION & DISTRIBUTION,12(11),2566-2576.
MLA	Zhang, Jiyuan,et al."Enhanced proportional power sharing strategy based on adaptive virtual impedance in low-voltage networked microgrid".IET GENERATION TRANSMISSION & DISTRIBUTION 12.11(2018):2566-2576.