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Flywheel Energy Storage System with AMB’s and Hybrid Backup Bearings

Published By Calnetix

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Flywheel Energy Storage System with AMB’s and Hybrid Backup Bearings

Published By Calnetix

By Lawrence Hawkins, Patrick McMullen and Vinh Vuong
Published August 2006
6 Page(s)

An AMB supported, 140 kW energy storage flywheel has been developed to provide 15 seconds of ride-through power and UPS service in conjunction with a diesel generator set. The flywheel, which operates in a vacuum, is supported by AMB to minimize bearing losses, and has a high power motor/generator coupled to an efficient power conversion module. As part of the flywheel module a backup bearing system to the AMB was developed and tested.