Development of Voltage Regulation Plan by Composing Subsystem with the SFES for DC On-line Electric Vehicle

S. Jung, J. H. Lee, M. Yoon, H. Lee, G. Jang

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


The study of the application process of the relatively small size 'Superconducting Flywheel Energy Storage (SFES)' system is conducted to regulate voltage fluctuation of the DC On-Line Electric Vehicle (OLEV) system, which is designed by using DC power system network. It is recommended to construct the power conversion system nearby the substation because the charging system is under the low voltage. But as the system is usually built around urban area and it makes hard to construct the subsystems at every station, voltage drop can occur in power supply inverter that is some distance from the substation. As the alternative of this issue, DC distribution system is recently introduced and has possibility to solve the above issue. In this paper, SFES is introduced to solve the voltage drop under the low voltage distribution system by using the concept of the proposed DC OLEV which results in building the longer distance power supply system. The simulation to design the SFES by using DC power flow analysis is carried out and it is verified in this paper.

Original languageEnglish
Pages (from-to)295-298
Number of pages4
JournalPhysics Procedia
Publication statusPublished - 2015
Event27th International Symposium on Superconductivity, ISS 2014 - Tokyo, Japan
Duration: 2014 Nov 252014 Nov 27

Bibliographical note

Funding Information:
This work was supported by the NRF grant (No. 2013H1A2A1034289) and by Human Resources Development of KETEP grant (No. 20114010203010) funded by the Korea government.

Publisher Copyright:
© 2015 The Authors.


  • Contactless power transfer system
  • DC distribution network
  • Electric vehicles
  • SFES voltage regulation
  • Wireless charging

ASJC Scopus subject areas

  • General Physics and Astronomy


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