A prototype of a flywheel system with auto stable high temperature superconducting bearings was built and tested. The bearings offered good vertical and lateral stability. A metallic flywheel disk, ~ 190 mm x 30 mm, was safely rotated at speeds up to 15000 rpm. The disk was driven by a 3 phase synch
Concept of Cold Energy Storage for Superconducting Flywheel Energy Storage System
β Scribed by Lee, Jisung; Jeong, Sangkwon; Han, Young Hee; Park, Byung Jun
- Book ID
- 111877124
- Publisher
- IEEE
- Year
- 2011
- Tongue
- English
- Weight
- 622 KB
- Volume
- 21
- Category
- Article
- ISSN
- 1051-8223
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π SIMILAR VOLUMES
High-speed flywheel systems have been studied as compensators of voltage sags and momentary interruptions of energy. Besides the complexity of these systems, the main concerns are bearing losses. This work is part of the development of a superconducting high-speed flywheel energy storage prototype.
The ability of high-temperature superconducting (HTS) bearings to exhibit low rotatlonal loss makes possible high-efficiency flywheel energy storage (FES). In this paper, we discuss the general benefit of high-efficiency FES and a possible route to develop the HTS bearings required to achieve it. We