Capacitor semi-active battery-ultracapacitor hybrid energy source

Chaim Lerman, Amiad Horosov, Alon Kuperman

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

9 Scopus citations

Abstract

Design of a battery-ultracapacitor semi-active hybrid energy source for powering a pulsed current load in presented in the paper. The energy source consists of a rechargeable LiFePO4 battery pack paired with an ultracapacitor pack, connected to the load via a DC-DC converter. The system is controlled such that battery supplies a nearly constant current, equal to the average load current, while the ultracapacitor supplies the dynamic component of the load current. Placing the DC-DC converter on the ultracapacitor, as opposed to placing it on the battery, decouples the ultracapacitor's voltage from the battery/load voltage. As a result, smaller and cheaper ultracapacitor can be employed, compared to a passive hybrid connection. Simulations of both passive and semi-active systems are presented in the paper and differences between the two systems are discussed thoroughly.

Original languageEnglish
Title of host publication2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2012
DOIs
StatePublished - 1 Dec 2012
Externally publishedYes
Event2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2012 - Eilat, Israel
Duration: 14 Nov 201217 Nov 2012

Publication series

Name2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2012

Conference

Conference2012 IEEE 27th Convention of Electrical and Electronics Engineers in Israel, IEEEI 2012
Country/TerritoryIsrael
CityEilat
Period14/11/1217/11/12

Keywords

  • DC-DC converter
  • Hybrid source
  • Li-ion battery
  • ultracapacitor

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