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Title: Design principles for a flywheel energy store for road vehicles

Journal Article · · IEEE Transactions on Industry Applications
DOI:https://doi.org/10.1109/28.556644· OSTI ID:442672

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.

OSTI ID:
442672
Journal Information:
IEEE Transactions on Industry Applications, Vol. 32, Issue 6; Other Information: DN: Presented at the 1995 IEEE Industry Applications Society annual meeting, October 8--12, Lake Buena Vista, FL (US); PBD: Nov-Dec 1996
Country of Publication:
United States
Language:
English