Title :
Design principles for a flywheel energy store for road vehicles
Author :
Acarnley, Paul P. ; Mecrow, Barrie C. ; Burdess, James S. ; Fawcett, J. Neville ; Kelly, J.G. ; Dickinson, Philip G.
Author_Institution :
Newcastle upon Tyne Univ., UK
Abstract :
This paper introduces a flywheel energy storage device capable of enhancing the fuel economy of a hybrid-type road vehicle. A number of possible drive types are considered and the permanent magnet machine drive is shown to provide the best solution. Reasons for selecting a device using an axial-field configuration with single-rotor and double-stator sections are described. Electrical, magnetic, and mechanical design data are presented for a full-scale prototype device with 240 kJ of usable energy storage and 25 kW of power transfer, operating at speeds up to 50 000 r/min, with a 10% duty cycle
Keywords :
AC motor drives; electric vehicles; flywheels; permanent magnet motors; 240 kJ; 25 kW; axial-field configuration; double-stator; drive types; electrical design; flywheel energy store; magnetic design; mechanical design; permanent magnet machine drive; power transfer; road vehicles; single-rotor; usable energy storage; Electric vehicles; Electromagnetic devices; Energy storage; Flywheels; Fuel economy; Hybrid electric vehicles; Industry Applications Society; Permanent magnet machines; Road vehicles; Wheels;
Journal_Title :
Industry Applications, IEEE Transactions on
