REGENERATIVE FLYWHEEL ENERGY STORAGE SYSTEM. VOLUME III. LIFE-CYCLE AND COST-BENEFIT ANALYSIS OF A BATTERY-FLYWHEEL ELECTRIC CAR

This report describes the development, fabrication, and test of a regenerative flywheel energy storage and recovery system for a battery/flywheel electric vehicle of the 3000-lb class. The vehicle propulsion system was simulated on a digital computer in order to determine the optimum system operating strategies and to establish a calculated range improvement over a nonregenerative, all-electric vehicle. Fabrication of the inductor motor, the flywheel, the power conditioner, and the system control is described. Test results of the system operating over the SAE J227a Schedule D driving cycle are given and are compared to the calculated value. The flywheel energy storage system consists of a solid rotor, synchronous, inductor-type, flywheel drive machine electrically coupled to a d-c battery electric propulsion system through a load-commutated inverter. The motor/alernator unit is coupled mechanically to a small steel flywheel which provides a portion of the vehicle's accelerating energy and regenerates the vehicle's braking energy. Laboratory simulation of the electric vehicle propulsion system includes a 108-volt, lead-acid battery bank and a separately excited d-c propulsion motor coupled to a flywheel and generator which simulate the vehicle's inertia and losses. This volume presents the life-cycle and cost-benefit analyses of the proposed battery/flywheel electric vehicle.

  • Corporate Authors:

    General Electric Corporate Research & Development

    Schenectady, NY  USA 

    Department of Energy

    1000 Independence Avenue, SW
    Washington, DC  USA  20585
  • Publication Date: 1980-6-27

Media Info

  • Pagination: 194 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00328396
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: SRD-79-148-3
  • Contract Numbers: W-7405-ENG-48
  • Files: TRIS
  • Created Date: Apr 15 1981 12:00AM