Networked hierarchical approach for voltage unbalance compensation in island microgrid

doi:10.16081/j.issn.1006-6047.2018.02.018

	Networked hierarchical approach for voltage unbalance compensation in island microgrid
	Wu, Lizhen 1,2; Wang, Xiaoting 1; Hao, Xiaohong 1; Yang, Xusheng 1
刊名	Dianli Zidonghua Shebei/Electric Power Automation Equipment
	2018-02-10
卷号	38 期号:2 页码:137-144
关键词	Compensation (personnel) Electric fault currents Reactive power Simulation platform Co-ordinated control Communication technologies Consensus algorithms Hierarchical control Hierarchical control systems Micro grid Three-phase voltage unbalance Voltage unbalance compensations
ISSN号	10066047
DOI	10.16081/j.issn.1006-6047.2018.02.018
英文摘要	Aiming at the problem of three-phase voltage unbalance caused by the integration of unbalance load at the PCC(Point of Common Coupling) in low voltage island microgrid with multiple parallel inverters, an optimal net-worked hierarchical coordinated control method is proposed. The networked hierarchical control system is built based on communication technology and hierarchical control theory, which includes local control layer and distributed secondary control layer. The local control layer adopts the droop control and virtual impedance to realize the distribution of active power and reactive power. In the secondary control, the dynamic consensus algorithm is adopted to obtain the global average value and adjust the deviations of voltage and reactive power for realizing astatic control of voltage and accurate distribution of power. Combined with optimization control strategy, the optimal coordinated compensation control of unbalance voltage for PCC and DG(Distributed Generator) is realized. The proposed method can well compensate voltage at PCC as well as ensure the voltage quality of each DG. The semi-physical simulation experimental platform is built to verify the effectiveness and feasibility of the proposed method. © 2018, Electric Power Automation Equipment Press. All right reserved.
语种	中文
出版者	Electric Power Automation Equipment Press
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/114503]
专题	电气工程与信息工程学院
作者单位	1.College of Electrical and Information Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 2.National Active Distribution Network Technology Research Center, Beijing Jiaotong University, Beijing; 100044, China
推荐引用方式 GB/T 7714	Wu, Lizhen,Wang, Xiaoting,Hao, Xiaohong,et al. Networked hierarchical approach for voltage unbalance compensation in island microgrid[J]. Dianli Zidonghua Shebei/Electric Power Automation Equipment,2018,38(2):137-144.
APA	Wu, Lizhen,Wang, Xiaoting,Hao, Xiaohong,&Yang, Xusheng.(2018).Networked hierarchical approach for voltage unbalance compensation in island microgrid.Dianli Zidonghua Shebei/Electric Power Automation Equipment,38(2),137-144.
MLA	Wu, Lizhen,et al."Networked hierarchical approach for voltage unbalance compensation in island microgrid".Dianli Zidonghua Shebei/Electric Power Automation Equipment 38.2(2018):137-144.