The kinetic energy of rapid transit trains that is normally dissipated as heat during braking can be converted to potential energy. The use of a flywheel energy storage system is an old idea that has recently been revived. A competitive idea being advanced is the thyristor inverter-recuperative system. While extensive operational experience is not yet available for either, both are currently being tested. The flywheel system is being tested on the New York Transit Authority and the regenerative system on the Sao Paulo, Brazil, Metro. It appears that the regenerative system is more efficient and requires less maintenance, thereby justifying the additional capital investment.

Media Info

  • Features: Figures; References;
  • Pagination: p. 63-66
  • Serial:
    • IEEE Spectrum
    • Volume: 12
    • Issue Number: 5
    • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
    • ISSN: 0018-9235

Subject/Index Terms

Filing Info

  • Accession Number: 00095867
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 24 1981 12:00AM