A Dual-Window DC Bus Interacting Method for DC Microgrids Hierarchical Control Scheme


Hierarchical control schemes have been commonly employed in dc microgrid controls, which combine local control, dc bus voltage coordination, and communication links to guarantee smart operation of dc microgrids. Conventional dc bus voltage regulation cannot conduct signal exchange. Therefore, external communication links are usually needed for hierarchical control schemes. However, once the communication link fails, the hierarchical control system will lose its ability to coordinate the distributed power smartly. This paper proposed a dual-window dc bus interacting (DBI) method to exchange information between the distributed energy sources, for the situations where communication link fails or is not available. A small-scale dc microgrid experimental system was set up, and a simple master-slave control scheme was implemented without communication link to demonstrate the feasibility of the proposed DBI method for dc microgrid controls. The expandability and immunity of the proposed DBI method were also evaluated.

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Publication ISSN: 1949-3029
Last Modified: 29 Nov 2023 12:13
Date Deposited: 07 Mar 2019 10:16
Full Text Link: 10.1109/TSTE.2019.2900617
Related URLs: https://ieeexpl ... cument/8645723/ (Publisher URL)
http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2020-04-01
Published Online Date: 2019-02-20
Accepted Date: 2019-02-01
Authors: Li, Fulong
Lin, Zhengyu
Qian, Zhongnan
Wu, Jiande
Jiang, Wei



Version: Accepted Version

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