Second life battery energy storage systems:converter topology and redundancy selection


Battery energy storage systems have traditionally been manufactured using new batteries with a good reliability. The high cost of such a system has led to investigations of using second life transportation batteries to provide an alternative energy storage capability. However, the reliability and performance of these batteries is unclear and multi-modular power electronics with redundancy have been suggested as a means of helping with this issue. This paper reviews work already undertaken on battery failure rate to suggest suitable figures for use in reliability calculations. The paper then uses reliability analysis and a numerical example to investigate six different multi-modular topologies and suggests how the number of series battery strings and power electronic module redundancy should be determined for the lowest hardware cost using a numerical example. The results reveal that the cascaded dc-side modular with single inverter is the lowest cost solution for a range of battery failure rates.

Publication DOI:
Divisions: College of Engineering & Physical Sciences > School of Informatics and Digital Engineering > Electrical and Electronic Engineering
College of Engineering & Physical Sciences > Power Electronics, Machines and Power System (PEMPS)
Additional Information: This paper is a postprint of a paper submitted to and accepted for publication in IET Conference Publication and is subject to Institution of Engineering and Technology Copyright. The copy of record is available at IET Digital Library. Funding: EPSRC (EP/1008764/1)
Event Title: 7th IET international conference on Power Electronics, Machines and Drives
Event Type: Other
Event Dates: 2014-04-08 - 2014-04-10
Uncontrolled Keywords: battery failure rate,converter redundancy,multi-modular converters,second life battery energy storage system (SLBESS),Electrical and Electronic Engineering
ISBN: 978-1-84919-815-8
Full Text Link: http://digital- ... 49/cp.2014.0256
http://www.scop ... tnerID=8YFLogxK
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Conference contribution
Published Date: 2014
Authors: Mukherjee, N.
Strickland, D. (ORCID Profile 0000-0002-2979-4479)



Version: Accepted Version

Export / Share Citation


Additional statistics for this record