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Liquid air energy storage for ancillary services in an integrated hybrid renewable system
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Kheshti, Mostafa, Zhao, Xiaowei, Liang, Ting, Nie, Binjian, Ding, Yulong and Greaves, Deborah (2022) Liquid air energy storage for ancillary services in an integrated hybrid renewable system. Renewable Energy, 199 . pp. 298-307. doi:10.1016/j.renene.2022.09.010 ISSN 0960-1481.
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Official URL: http://dx.doi.org/10.1016/j.renene.2022.09.010
Abstract
High shares of intermittent renewable sources cause volatile frequency movements that could jeopardize the continuous operation of the grid. Liquid Air Energy Storage (LAES) is an emerging technology that not only helps with decarbonisation of energy sectors, but also has potentials for reliable ancillary services. In this paper, a hybrid LAES, wind turbine (WT), and battery energy storage system (BESS) is used to investigate their contributions in fast frequency control. The inertial control, droop control and combined inertial and droop terms are applied on each source of the hybrid renewable system and a comprehensive analysis is conducted to study their impacts on the frequency nadir improvement. The analysis shows that LAES with combined inertial and droop control terms along with inertial control of WT and BESS provide reliable frequency control. To further improve the frequency nadir, a Fuzzy control is proposed and applied on the LAES. The proposed control system provides a more adaptive performance against disturbances. Also, experimental tests are conducted to validate the proposed control method using a real-time hardware-in-the-loop test rig. The simulation and experimental results show that LAES in a hybrid renewable system can significantly contribute to the frequency control when variable gain control schemes are implemented.
Item Type: | Journal Article | |||||||||
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Subjects: | T Technology > TJ Mechanical engineering and machinery | |||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | |||||||||
Library of Congress Subject Headings (LCSH): | Renewable energy sources, Wind power, Electric utilities -- Energy conservation | |||||||||
Journal or Publication Title: | Renewable Energy | |||||||||
Publisher: | Elsevier Ltd. | |||||||||
ISSN: | 0960-1481 | |||||||||
Official Date: | November 2022 | |||||||||
Dates: |
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Volume: | 199 | |||||||||
Page Range: | pp. 298-307 | |||||||||
DOI: | 10.1016/j.renene.2022.09.010 | |||||||||
Status: | Peer Reviewed | |||||||||
Publication Status: | Published | |||||||||
Access rights to Published version: | Open Access (Creative Commons) | |||||||||
Date of first compliant deposit: | 25 October 2022 | |||||||||
Date of first compliant Open Access: | 25 October 2022 | |||||||||
RIOXX Funder/Project Grant: |
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