A 50 Wh Open Core High-Speed Flywheel

Document Number: 1999-01-2615

Date Published: August 1999

Author(s):
Greg Walsh - University of Maryland
Kevin R. Kefauver - University of Maryland
Louis P. Hromada - Flywheel Systems Inc.
James A. Kirk - Fare Inc.
Ronald B. Zmood - Royal Melbourne Institute of Technology

Abstract:
In low earth orbit satellite applications, spacecraft power is provided by photovoltaic cells and batteries. Unfortunately, use of batteries present difficulties due to their poor energy density, limited cycle lifetimes, reliability problems, and the difficulty in measuring the state of charge. Flywheel energy storage offers a viable alternative to overcome some of the limitations presented by batteries.

FARE, Inc., has built a 50 Wh flywheel energy storage system. This system, called the Open Core Flywheel, is intended to be a prototype energy storage device for low earth orbit satellite applications. To date, the Open Core Flywheel has achieved a rotational speed of 26 krpm under digital control.

File Size: 95K
Product Status: In Stock

See other papers presented at 34th Intersociety Energy Conversion Engineering Conference, August 1999, Vancouver, BC, CANAD, Session: Storage Systems

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