Distributed hierarchical coordinated control for voltage and reactive power in islanded microgrid

	Distributed hierarchical coordinated control for voltage and reactive power in islanded microgrid
	Wu, Lizhen 1,2; Lei, Aihu 2; Hao, Xiaohong 2
刊名	Taiyangneng Xuebao/Acta Energiae Solaris Sinica
	2017-04-28
卷号	38 期号:4 页码:1045-1054
关键词	MATLAB Reactive power Time delay Co-ordinated control Consensus algorithms Micro grid Plug and play Secondary control
ISSN号	02540096
英文摘要	Due to the influence of line impedance and other factors in microgrid, the traditional sagging control is difficult to accurately distribute the reactive power according to the droop gain. A distributed hierarchical coordination control approach was presented to improve the sharing accuracy of reactive power. Based on the communication technology and hierarchical control theory, an architecture of distributed hierarchical control was constructed, which consisted of local control layer and distributed secondary control layer. The traditional droop control, virtual impedance control and PR voltage and current control were adopted in local control layer to achieve the power sharing. The distributed consensus algorithm was used in the secondary control to design the situation observer so as to get global average values and congruously adjust the deviation of voltage and reactive power, achieve the voltage without static error control and reactive power of the precise allocation, while reduce the system bandwidth requirements of the system, make the system have a higher reliability and scalability. Finally, the dynamic performance of distributed secondary control and the influence of delay on the system robustness were analyzed through Matlab/Simulink simulation and experiment, the validity and feasibility of the proposed method was further verified. © 2017, Editorial Board of Acta Energiae Solaris Sinica. All right reserved.
语种	中文
出版者	Science Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114626]
专题	电气工程与信息工程学院
作者单位	1.National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing; 100044, China 2.College of Electrical and Information Engineering of Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Wu, Lizhen,Lei, Aihu,Hao, Xiaohong. Distributed hierarchical coordinated control for voltage and reactive power in islanded microgrid[J]. Taiyangneng Xuebao/Acta Energiae Solaris Sinica,2017,38(4):1045-1054.
APA	Wu, Lizhen,Lei, Aihu,&Hao, Xiaohong.(2017).Distributed hierarchical coordinated control for voltage and reactive power in islanded microgrid.Taiyangneng Xuebao/Acta Energiae Solaris Sinica,38(4),1045-1054.
MLA	Wu, Lizhen,et al."Distributed hierarchical coordinated control for voltage and reactive power in islanded microgrid".Taiyangneng Xuebao/Acta Energiae Solaris Sinica 38.4(2017):1045-1054.