Analysis of battery lifetime extension in a SMES-battery hybrid energy storage system using a novel battery lifetime model

Jianwei Li, Anthony M. Gee, Min Zhang and Weijia Yuan

Energy, 2015, vol. 86, issue C, 175-185

Abstract: In off-grid wind energy systems, batteries often undergo frequent charge/discharge cycles, which reduce battery service life. In addition, due to motor start and other high ‘inrush current’ loads batteries undergo high rates of discharge which also degrade battery life. In this paper, a superconducting magnetic energy storage and battery hybrid energy storage system is proposed, which is beneficial in reducing battery short term power cycling and high discharge currents. To demonstrate system performance, a representative off-grid wind power system model is described in detail which incorporates turbulent wind variations, load variations and energy storage systems. To estimate battery lifetime improvement, a novel battery lifetime model is described, which quantifies the impact of both the number of charge/discharge cycles and also the effect rate of discharge. The model is validated using previously reported data. This work advances previous studies by describing the estimated improvement in terms of battery life in a wind energy conversion application by use of superconducting energy storage and by presenting a novel method for doing so. In addition, the proposed battery lifetime model can be potentially used in other applications.

Keywords: SMES (superconducting magnetic energy storage); Battery; Off-grid wind power system; Battery lifetime model; Discharge rate (search for similar items in EconPapers)
Date: 2015
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (39)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S0360544215004843
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:86:y:2015:i:c:p:175-185

DOI: 10.1016/j.energy.2015.03.132

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().