Autonomous power management for interlinked AC-DC microgrids

Ullah, I, Meegahapola, L, Chiang, A and Blaabjerg, F 2018, 'Autonomous power management for interlinked AC-DC microgrids', CSEE Journal of Power and Energy Systems, vol. 4, no. 1, pp. 11-18.


Document type: Journal Article
Collection: Journal Articles

Title Autonomous power management for interlinked AC-DC microgrids
Author(s) Ullah, I
Meegahapola, L
Chiang, A
Blaabjerg, F
Year 2018
Journal name CSEE Journal of Power and Energy Systems
Volume number 4
Issue number 1
Start page 11
End page 18
Total pages 8
Publisher Zhongguo Dianli Kexue Yanjiuyuan
Abstract The existing power management schemes for interlinked AC-DC microgrids have several operational drawbacks. Some of the existing control schemes are designed with the main objective of sharing power among the interlinked microgrids based on their loading conditions, while other schemes regulate the voltage of the interlinked microgrids without considering the specific loading conditions. However, the existing schemes cannot achieve both objectives efficiently. To address these issues, an autonomous power management scheme is proposed, which explicitly considers the specific loading condition of the DC microgrid before importing power from the interlinked AC microgrid. This strategy enables voltage regulation in the DC microgrid, and also reduces the number of converters in operation. The proposed scheme is fully autonomous while it retains the plug-nplay features for generators and tie-converters. The performance of the proposed control scheme has been validated under different operating scenarios. The results demonstrate the effectiveness of the proposed scheme in managing the power deficit in the DC microgrid efficiently and autonomously while maintaining the better voltage regulation in the DC microgrid.
Subject Industrial Electronics
Power and Energy Systems Engineering (excl. Renewable Power)
Electrical and Electronic Engineering not elsewhere classified
Keyword(s) Autonomous control
distributed control
droop control
hybrid microgrids
interlinked microgrids
power management
DOI - identifier 10.17775/CSEEJPES.2016.01510
Copyright notice © 2016 CSEE
ISSN 2096-0042
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