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Title: A decentralized automatic load power allocation strategy for hybrid energy storage system
Authors: Wang, Zhishuang
Wang, Ping
Jiang, Wentao
Wang, Peng
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2021
Source: Wang, Z., Wang, P., Jiang, W. & Wang, P. (2021). A decentralized automatic load power allocation strategy for hybrid energy storage system. IEEE Transactions On Energy Conversion, 36(3), 2227-2238.
Journal: IEEE Transactions on Energy Conversion
Abstract: A decentralized improved I-V droop control strategy for battery-supercapacitor (SC) hybrid energy storage system (HESS) is proposed in this paper. The dynamic power sharing between battery and SC is realized by replacing the constant droop coefficient in I-V droop control with virtual impedance, i.e. virtual inductance for battery side converter and virtual resistance for SC side converter. Besides, by injecting the virtual inductance in the battery side converter, negligible DC bus voltage deviation can be achieved without extra voltage compensator. Moreover, the state-of-charge (SoC) recovery is also considered to extend the service life of the HESS. Furthermore, in the proposed regulated power system, since the power allocation, DC bus stability and SoC recovery are decoupled from each other, the design of control parameters is simple. The corresponding design guideline is demonstrated in this paper. Finally, to verify the accuracy and feasibility of the theoretical analyses, hardware in the loop simulations have been conducted.
ISSN: 0885-8969
DOI: 10.1109/TEC.2020.3038476
Schools: School of Electrical and Electronic Engineering 
Research Centres: Energy Research Institute @ NTU (ERI@N) 
Rights: © 2020 IEEE. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:EEE Journal Articles
ERI@N Journal Articles

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