Online Impedance Spectroscopy Estimation of a Battery EPEv2.pdf (1.08 MB)
0/0

Online impedance spectroscopy estimation of a battery

Download (1.08 MB)
conference contribution
posted on 12.05.2017 by Mina Abedi Varnosfaderani, Dani Strickland
Electrochemical impedance spectroscopy (EIS) is a helpful tool to understand how a battery is behaving and how it degrades. One of the disadvantages is that it is typically an 'off-line' process. This paper investigates an alternative method of looking at impedance spectroscopy of a battery system while it is on-line and operational by manipulating the switching pattern of the dc-dc converter to generate low frequency harmonics in conjunction with the normal high frequency switching pattern to determine impedance in real time. However, this adds extra ripple on the inductor which needs to be included in the design calculations. The paper describes the methodology and presents some experimental results in conjunction with EIS results to illustrate the concept.

Funding

The authors would like to thank the EPSRC and Opal-RT for their contribution to this project.

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

EPE 2016 ECCE 2016 18th European Conference on Power Electronics and Applications, EPE 2016 ECCE Europe

Citation

VARNOSFADERANI, M.A. and STRICKLAND, D., 2016. Online impedance spectroscopy estimation of a battery. 18th European Conference on Power Electronics and Applications (EPE'16 ECCE Europe), Karlsruhe, Germany, 5th-9th September 2016.

Publisher

© IEEE

Version

AM (Accepted Manuscript)

Acceptance date

01/08/2016

Publication date

2016

Notes

© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

ISBN

9789075815245

Language

en

Location

Karlsruhe

Exports

Logo branding

Exports