Flywheel Energy Storage System Description and Tests

Author

De Andrade, Rubens ; Sotelo, Guilherme G. ; Ferreira, Antonio C. ; Rolim, Luis G B ; Da Silva Neto, José L. ; Stephan, Richard M. ; Suemitsu, Walter I. ; Nicolsky, Roberto

Author_Institution

Federal Univ. of Rio de Janeiro, Rio de Janeiro

Volume

17

Issue

2

fYear

2007

fDate

6/1/2007 12:00:00 AM

Firstpage

2154

Lastpage

2157

Abstract

This paper presents test results of a flywheel energy storage system (FESS) prototype. The bearing system is composed of a superconducting magnetic thrust bearing (SMB) and a permanent magnet bearing (PMB). The SMB was built with Nd-Fe-B magnet and YBCO superconducting blocks. The PMB has the function of positioning radially the switched reluctance machine (SRM) used as motor/generator and reduce the load over the SMB. The SRM drive is responsible to convert electrical into mechanical energy, and vice versa. The prototype still operates at low speeds, but the dynamical simulations of the SRM drive showed that the system can work at high speed, supplying the required energy during disturbances. In the tests performed with the FESS prototype, the system took or delivered energy from/to the grid when requested.

Keywords

flywheels; high-temperature superconductors; magnetic bearings; superconducting magnet energy storage; bearing system; flywheel energy storage system; permanent magnet bearing; superconducting blocks; superconducting magnetic thrust bearing; switched reluctance machine; Energy storage; Flywheels; Magnetic levitation; Prototypes; Reluctance machines; Reluctance motors; Superconducting magnetic energy storage; Superconducting magnets; Superconducting transmission lines; System testing; Flywheels; high-temperature superconductors; superconducting magnetic bearings;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2007.899056

Filename

4277354