Decentralized control for parallel operation of distributed generation inverters in microgrids using resistive output impedance

被引:0
作者
Guerrero, Josep M. [1 ]
Berbel, Nestor [2 ]
Matas, Jose [2 ]
Garcia de Vicuna, Luis [2 ]
Miret, Jaume [2 ]
机构
[1] Sch Univ Engn Tech Ind Barcelona, Sustainable Distributed Generat & Renewable Energ, Dept Automat Control Syst & Comp Engn, Barcelona, Spain
[2] Sch Univ Engn Tech Ind Barcelona, Sustainable Distributed Generat & Renewable Energ, Dept Elect Engn, Barcelona, Spain
来源
IECON 2006 - 32ND ANNUAL CONFERENCE ON IEEE INDUSTRIAL ELECTRONICS, VOLS 1-11 | 2006年
关键词
distributed generation (DG); inverters; droop method; microgrids;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper, a novel wireless load-sharing controller for islanding parallel inverters in an ac-distributed system is proposed. The paper explores the resistive output impedance of the parallel-connected inverters in an island microgrid. The control loops are devised and analyzed taking into account the special nature of a low voltage microgrid, in which the line impedance is mainly resistive and the distance between the inverters makes the control intercommunication between them difficult. In contrast with the conventional droop control method, the proposed controller uses resistive output impedance, and as a result a different control law is obtained. The controller is implemented by using a DSP board, which only uses local measurements of the unit, thus increasing the modularity, reliability, and flexibility of the distributed system. Experimental results are provided from two 6 kVA inverters connected in parallel, showing the features of the proposed wireless control.
引用
收藏
页码:5172 / +
页数:2
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