Flywheel Energy Storage Systems Compared to Competing Technologies for Grid Load Mitigation in EV Fast-Charging Applications

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


The transition from fossil fuel-based transportation to clean, electric mobility has to be considered one of the crucial steps towards decarbonization. However, along with the strong projected increase of electric vehicles, a number of new challenges arise. Especially the continuously rising charge power in combination with an increasing supply by volatile sources result in high loads on the grid, which may cause instabilities and - in the worst case - even blackouts. Within this paper, the possibility of integrating a flywheel energy storage system (FESS) into a photovoltaic-assisted fast-charging station to stabilize the grid is discussed and compared to competing technologies. By introducing energy storage, even with only a low-voltage distribution grid at hand, high charge-power can be provided while at the same time stabilizing the grid. Superior cycle life of the flywheel energy storage, the ability to feed power back into the grid as well as easy transportability are further advantages of FESS for EV fast charging. Several use-cases ranging from the private home user to public transportation are evaluated based on analytical calculations. Characterization of FESS was performed based on real prototype measurements and field tests.

Original languageEnglish
Title of host publicationProceedings - 2018 IEEE 27th International Symposium on Industrial Electronics, ISIE 2018
PublisherInstitute of Electrical and Electronics Engineers
Number of pages7
ISBN (Print)9781538637050
Publication statusPublished - 10 Aug 2018
Event27th IEEE International Symposium on Industrial Electronics: ISIE 2018 - Cairns, Australia
Duration: 13 Jun 201815 Jun 2018


Conference27th IEEE International Symposium on Industrial Electronics
Abbreviated titleISIE 2018
Internet address


  • EV fast charging
  • flywheel energy storage
  • grid stability
  • load averaging

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Control and Systems Engineering

Fields of Expertise

  • Mobility & Production


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