Article (Scientific journals)
Design and real-time test of a hybrid energy storage system in the microgrid with the benefit of improving the battery lifetime
Li, Jianwei; Xiong, Riu; Mu, Hao et al.
2018In Applied Energy, 218, p. 470-478
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Keywords :
Battery lifetime extension; Hybrid energy storage system; Hardware in the loop; Real-time digital simulator
Abstract :
[en] This study proposes a hybrid energy storage system (HESS) composed of the superconducting energy storage system (SMES) and the battery. The system is designed to compensate power fluctuations within a microgrid. A novel control method is developed to share the instantaneous power between the SMES and the battery. The new control scheme takes into account the characteristics of the components of the HESS, and the battery charges and discharges as a function of the SMES current rather than directly to the power disturbances. In this way, the battery is protected from the abrupt power changes and works as an energy buffer to the SMES. An new hardware-in-loop experiment approach is introduced by integrating a real-time digital simulator (RTDS) with a control circuit to verify the proposed hybrid scheme and the new control method. This paper also presents a battery lifetime prediction method to quantify the benefits of the HESS in the microgrid. A much better power sharing between the SMES and the battery can be observed from the experimental results with the new control method. Moreover, compared to the battery only system the battery lifetime is quantifiably increased from 6.38 years to 9.21 years.
Disciplines :
Energy
Author, co-author :
Li, Jianwei ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Smart grids
Xiong, Riu
Mu, Hao
Cornélusse, Bertrand  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Smart-Microgrids
Vanderbemden, Philippe  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Capteurs et systèmes de mesures électriques
Ernst, Damien  ;  Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Smart grids
Yuan, Weijia
Language :
English
Title :
Design and real-time test of a hybrid energy storage system in the microgrid with the benefit of improving the battery lifetime
Publication date :
May 2018
Journal title :
Applied Energy
ISSN :
0306-2619
eISSN :
1872-9118
Publisher :
Elsevier, United Kingdom
Volume :
218
Pages :
470-478
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 28 April 2018

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