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A dual-window DC bus interacting method for DC microgrids hierarchical control scheme

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journal contribution
posted on 27.06.2019 by Fulong Li, Zhengyu Lin, Zhongnan Qian, Jiande Wu, Wei Jiang
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 setup, and a simple Master-Slave control scheme is 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.

Funding

EPSRC-UKRI Innovation Fellowship scheme under grant No. EP/S001662/1, and the European Union’s Horizon 2020 research and innovation programme under grant agreement No. 734796

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

IEEE Transactions on Sustainable Energy

Volume

11

Issue

2

Pages

652 - 661

Citation

LI, F. ... et al., 2020. A dual-window DC bus interacting method for DC microgrids hierarchical control scheme. IEEE Transactions on Sustainable Energy, 11 (2), pp.652-661.

Publisher

© IEEE

Version

AM (Accepted Manuscript)

Publication date

2019-02-20

Notes

© IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

ISSN

1949-3029

eISSN

1949-3037

Language

en

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