LAPSE:2018.1166
Published Article
LAPSE:2018.1166
Coordination Control Strategy for AC/DC Hybrid Microgrids in Stand-Alone Mode
Dwi Riana Aryani, Hwachang Song
November 28, 2018
Interest in DC microgrids is rapidly increasing along with the improvement of DC power technology because of its advantages. To support the integration process of DC microgrids with the existing AC utility grids, the form of hybrid AC/DC microgrids is considered for higher power conversion efficiency, lower component cost and better power quality. In the system, AC and DC portions are connected through interlink bidirectional AC/DC converters (IC) with a proper control system and power management. In the stand-alone operation mode of AC/DC hybrid microgrids, the control of power injection through the IC is crucial in order to maintain the system security. This paper mainly deals with a coordination control strategy of IC and a battery energy storage system (BESS) converter under stand-alone operation. A coordinated control strategy for the IC, which considers the state of charge (SOC) level of BESS and the load shedding scheme as the last resort, is proposed to obtain better power sharing between AC and DC subgrids. The scheme will be tested with a hybrid AC/DC microgrid, using the tool of the PSCAD/EMTDC software.
Keywords
battery energy storage system, droop control, hybrid AC/DC microgrid, interlink bidirectional AC/DC converter, power management
Suggested Citation
Aryani DR, Song H. Coordination Control Strategy for AC/DC Hybrid Microgrids in Stand-Alone Mode. (2018). LAPSE:2018.1166
Author Affiliations
Aryani DR: Department of Electrical and Information Engineering, Seoul National University of Science and Technology, Seoul 01811, Korea
Song H: Department of Electrical and Information Engineering, Seoul National University of Science and Technology, Seoul 01811, Korea [ORCID]
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Journal Name
Energies
Volume
9
Issue
6
Article Number
E469
Year
2016
Publication Date
2016-06-18
Published Version
ISSN
1996-1073
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PII: en9060469, Publication Type: Journal Article
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LAPSE:2018.1166
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doi:10.3390/en9060469
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Nov 28, 2018
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CC BY 4.0
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Nov 28, 2018
 
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Original Submitter
Calvin Tsay
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