Online impedance spectroscopy estimation of a DC-DC converter connected battery using an earth leakage monitoring circuit

M. A. Varnosfaderani*, D. Strickland

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference publication

Abstract

Electrochemical Impedance Spectroscopy (EIS) techniques are useful tools for being able to look at the characterisation of batteries under different conditions and/or with different material components. However, EIS analysis is mostly undertaken offline with bespoke equipment. This paper describes a method of undertaking EIS measurement on-line without the use of additional equipment by manipulating the earth leakage monitoring circuit to generate low frequency excitation signals to analyse a battery system connected to a dc/dc converter. This paper describes the methodology and presents some experimental results compared with off line EIS results generated with more traditional EIS equipment under the same conditions to illustrate the concept.

Original languageEnglish
Title of host publication2017 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe
PublisherIEEE
Volume2017-January
ISBN (Electronic)9789075815276
DOIs
Publication statusPublished - 9 Nov 2017
Event19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe - Warsaw, Poland
Duration: 11 Sep 201714 Sep 2017

Conference

Conference19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe
CountryPoland
CityWarsaw
Period11/09/1714/09/17

Keywords

  • Batteries
  • DC/DC converters
  • Frequency Analysis
  • Impedance Spectroscopy

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    Varnosfaderani, M. A., & Strickland, D. (2017). Online impedance spectroscopy estimation of a DC-DC converter connected battery using an earth leakage monitoring circuit. In 2017 19th European Conference on Power Electronics and Applications, EPE 2017 ECCE Europe (Vol. 2017-January). [8098959] IEEE. https://doi.org/10.23919/EPE17ECCEEurope.2017.8098959