On power losses in switched supercapacitor circuits

Alexander Kushnerov, Fedor Bukashev

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

6 Scopus citations

Abstract

Based on the Westerlund-Ekstam model, the paper presents an estimation of power losses in an elementary switched supercapacitor circuit. The power losses are found analytically and represented in the form of equivalent resistance. It is shown that as compared to an ideal capacitor, the use of supercapacitor is preferred at low switching frequency, f <1/(5RC). In addition, a straightforward method to obtain the parameters of the lumped element model of supercapacitor is proposed. The theoretical results were verified by simulations. Possible applications of the obtained results include characterization of the supercapacitors in the time-domain and equalizing the voltages across serially connected supercapacitors.

Original languageEnglish
Title of host publication16th International Power Electronics and Motion Control Conference and Exposition, PEMC 2014
PublisherInstitute of Electrical and Electronics Engineers
Pages1100-1103
Number of pages4
ISBN (Electronic)9781479920600
DOIs
StatePublished - 9 Dec 2014
Event16th International Power Electronics and Motion Control Conference and Exposition, PEMC 2014 - Antalya, Turkey
Duration: 21 Sep 201424 Sep 2014

Publication series

Name16th International Power Electronics and Motion Control Conference and Exposition, PEMC 2014

Conference

Conference16th International Power Electronics and Motion Control Conference and Exposition, PEMC 2014
Country/TerritoryTurkey
CityAntalya
Period21/09/1424/09/14

Keywords

  • Electrochemical capacitor
  • Fractional derivative
  • Lumped element model
  • Ultracapacitor

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology

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