Enhancing Low-Throttle-Operation Robustness of ICE-Based APU by Supercapacitor-Realized Virtual Inertia

Gal Geula, Svetlana Bronshtein, Moshe Averbukh, Alon Kuperman

Research output: Contribution to journalLetterpeer-review

2 Scopus citations

Abstract

Low throttle operation of internal combustion engine-based auxiliary power units is desirable under light load to decrease specific fuel consumption. Unfortunately, sudden load increase may lead to voltage collapse and consequent stability lost due to limited total inertia and slow prime mover dynamics. This letter demonstrates that connecting a supercapacitor across auxiliary power unit output terminals is equivalent to increasing total inertia and may enhance low throttle operational robustness. Proposed findings are validated by experimental results.

Original languageEnglish
Article number7827019
Pages (from-to)1344-1346
Number of pages3
JournalIEEE Transactions on Sustainable Energy
Volume8
Issue number3
DOIs
StatePublished - 1 Jul 2017

Keywords

  • Auxiliary power unit
  • inertia
  • internal combustion engine
  • specific fuel consumption
  • supercapacitor

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment

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