A basic model for evaluating a direct battery and supercapacitor parallel connection

Frederik Van Mulders, Jean-Marc Timmermans, Joeri Van Mierlo, Peter Van Den Bossche

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

Abstract

Ongoing research regarding the long-time effect of a supercapacitor-battery parallel connected system as compared to a battery only system, proved the usefulness of a model for such systems. The model, as created, enables evaluation of the direct response to a current load and as a consequence the dimensioning of the supercapacitors. The model does not predict the long term effect on the batteries in such a combination.
Integrated in a user friendly National Instruments LabVIEW program, which can import a current load profile, the model can calculate the response to such a demand for systems with different specifications. The model's response is then compared to the lab results using a simple practical test. For this test a supercapacitor pack with a capacitance of 50F and a maximal voltage of 56V and a battery setup with four series VRLA 12V batteries were used. The internal resistances of the supercapacitor and battery pack were measured and the battery and supercapacitor pack were connected in parallel and subjected to a single square load current. The same square load current was then applied to the model to evaluate it.
Original languageEnglish
Title of host publicationEET-2008, Geneva
Publication statusPublished - 15 Feb 2008
EventFinds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet - Stockholm, Sweden
Duration: 21 Sep 200925 Sep 2009

Publication series

NameEET-2008 European Ele-Drive Conference

Conference

ConferenceFinds and Results from the Swedish Cyprus Expedition: A Gender Perspective at the Medelhavsmuseet
CountrySweden
CityStockholm
Period21/09/0925/09/09

Keywords

  • super capacitor
  • ultra capacitor
  • battery
  • modeling

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