Power distribution control coordinating ultracapacitors and batteries for electric vehicles

Evren Ozatay, Ben Zile, Joel Robert Anstrom, Sean N. Brennan

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

57 Citations (Scopus)

Abstract

Electrical energy storage is a central element to any electric-drivetrain technology - whether hybrid-electric, fuel-cell, or all-electric. A particularly cost-sensitive issue with energy storage is the high replacement cost of depleted battery banks. One possibility to ease the power burden on batteries and fuel cells is to use ultra-capacitors as load-leveling devices. The high power density of ultra-capacitors allows a significant reduction in the power fluctuations imposed on the remaining electrical system; however, the same ultra-capacitors have a very low energy density and therefore must be used sparingly and with coordination. A control strategy for coordinated power distribution is a central issue for ultracapacitor-supported systems. Toward this end, several control methods are implemented on an electric vehicle equipped with a battery/ultracapacitor system with the goal of improving battery life and overall vehicle efficiency. A particular goal is to obtain both a peaking load control and a frequency-weighted coordination between capacitor and battery in order to mitigate transients in the battery current demand. A key control design issue is that the control objectives vary with respect to vehicle velocity, driver's power demand, and state-of-charge of both the batteries and ultracapacitors. Ultracapacitor, hybrid-electric vehicle, control.

Original languageEnglish (US)
Title of host publicationProceedings of the 2004 American Control Conference (AAC)
Pages4716-4721
Number of pages6
DOIs
StatePublished - Nov 30 2004
EventProceedings of the 2004 American Control Conference (AAC) - Boston, MA, United States
Duration: Jun 30 2004Jul 2 2004

Publication series

NameProceedings of the American Control Conference
Volume5
ISSN (Print)0743-1619

Other

OtherProceedings of the 2004 American Control Conference (AAC)
CountryUnited States
CityBoston, MA
Period6/30/047/2/04

Fingerprint

Electric vehicles
Capacitors
Fuel cells
Energy storage
Hybrid vehicles
Costs
Supercapacitor

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Ozatay, E., Zile, B., Anstrom, J. R., & Brennan, S. N. (2004). Power distribution control coordinating ultracapacitors and batteries for electric vehicles. In Proceedings of the 2004 American Control Conference (AAC) (pp. 4716-4721). (Proceedings of the American Control Conference; Vol. 5). https://doi.org/10.1109/ACC.2004.182697
Ozatay, Evren ; Zile, Ben ; Anstrom, Joel Robert ; Brennan, Sean N. / Power distribution control coordinating ultracapacitors and batteries for electric vehicles. Proceedings of the 2004 American Control Conference (AAC). 2004. pp. 4716-4721 (Proceedings of the American Control Conference).
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Ozatay, E, Zile, B, Anstrom, JR & Brennan, SN 2004, Power distribution control coordinating ultracapacitors and batteries for electric vehicles. in Proceedings of the 2004 American Control Conference (AAC). Proceedings of the American Control Conference, vol. 5, pp. 4716-4721, Proceedings of the 2004 American Control Conference (AAC), Boston, MA, United States, 6/30/04. https://doi.org/10.1109/ACC.2004.182697

Power distribution control coordinating ultracapacitors and batteries for electric vehicles. / Ozatay, Evren; Zile, Ben; Anstrom, Joel Robert; Brennan, Sean N.

Proceedings of the 2004 American Control Conference (AAC). 2004. p. 4716-4721 (Proceedings of the American Control Conference; Vol. 5).

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

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Ozatay E, Zile B, Anstrom JR, Brennan SN. Power distribution control coordinating ultracapacitors and batteries for electric vehicles. In Proceedings of the 2004 American Control Conference (AAC). 2004. p. 4716-4721. (Proceedings of the American Control Conference). https://doi.org/10.1109/ACC.2004.182697