publication . Article . 2007

Design, Fabrication, and Test of a 5-kWh/100-kW Flywheel Energy Storage Utilizing a High-Temperature Superconducting Bearing

M. Strasik; P.E. Johnson; A.C. Day; J. Mittleider; M.D. Higgins; J. Edwards; J.R. Schindler; K.E. McCrary; C.R. McIver; D. Carlson; ...
Open Access
  • Published: 07 Aug 2007 Journal: IEEE Transactions on Applied Superconductivity, volume 17, pages 2,133-2,137 (issn: 1051-8223, Copyright policy)
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Abstract
The Boeing team has designed, fabricated, and is currently testing a 5-kWh/100-kW flywheel energy-storage system (FESS) utilizing a high-temperature superconducting (HTS) bearing suspension/damping system. Primary design features include: a robust rotor design utilizing a composite rim combined with a metallic hub to create a 164-kg rotor assembly without critical resonances within the normal operating range, a closed-loop passive HTS bearing suspension/damping system, and a brushless 100-kW motor/generator. The Boeing FESS provides true isolation for the critical load as the 3-phase 480-V AC input power is converted to 600-V DC and re-inverted to clean, 3-phase...
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