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Title: Time-delay stability analysis for hybrid energy storage system with hierarchical control in DC microgrids
Authors: Dong, Chaoyu
Jia, Hongjie
Xu, Qianwen
Xiao, Jianfang
Xu, Yan
Tu, Pengfei
Lin, Pengfeng
Li, Xiaomeng
Wang, Peng
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2017
Source: Dong, C., Jia, H., Xu, Q., Xiao, J., Xu, Y., Tu, P., . . . Wang, P. (2018). Time-delay stability analysis for hybrid energy storage system with hierarchical control in DC microgrids. IEEE Transactions on Smart Grid, 9(6), 6633-6645. doi:10.1109/TSG.2017.2717504
Journal: IEEE Transactions on Smart Grid
Abstract: Hybrid energy storage system (HESS) plays an important role in the operation of dc microgrids which have attracted significant research attention recently. The hierarchical control is widely adopted for the coordination of multiple energy storages in a HESS. As the hierarchical control comprises the centralized and the decentralized control levels, the time delays during signal transfer processes between two control levels may significantly affect HESS operation and may lead to instability. In this paper, considering the multiple delays in the hierarchical control processes, the maximum delayed time (MDT) is defined to assess the stability margin for a HESS. An accurate and effective method based on small signal stability model is then proposed to determine the MDT of a HESS to maintain its stability. The effectiveness and correctness of the proposed method are verified using a lab-scale dc microgrid.
ISSN: 1949-3053
DOI: 10.1109/TSG.2017.2717504
Schools: School of Electrical and Electronic Engineering 
Interdisciplinary Graduate School (IGS) 
Research Centres: Energy Research Institute @ NTU (ERI@N) 
Rights: © 2017 IEEE. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:ERI@N Journal Articles

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