Title :
Improving the dynamics of a flywheel energy storage system with superconducting magnetic bearings
Author :
Komori, Mochimitsu ; Kawashima, Toru
Author_Institution :
Dept. of Appl. Sci. for Integrtaed Syst. Eng., Kyushu Inst. of Technol., Fukuoka, Japan
fDate :
6/1/2004 12:00:00 AM
Abstract :
This paper describes a new method for improving the dynamics of a flywheel energy storage system using superconducting magnetic bearings (SMBs). The SMBs are composed of a ring-shaped superconductor and some permanent magnets (PM). Changes in stiffness and damping coefficient of the SMBs were investigated. Forced displacements are given to the SMBs to improve the stiffness and the damping coefficient. The stiffness and the damping coefficient are also evaluated by using the energy storage flywheel system.
Keywords :
flywheels; high-temperature superconductors; magnetic bearings; magnetic flux; superconducting magnet energy storage; superconducting magnets; vibration control; damping coefficient; energy storage flywheel system; forced displacements; permanent magnets; ring-shaped superconductor; stiffness coefficient; superconducting magnetic bearings; vibration suppression; Damping; Energy storage; Flywheels; High temperature superconductors; Magnetic flux density; Magnetic levitation; Permanent magnets; Power engineering and energy; Shafts; Superconducting magnets; Energy storage; flywheel; superconducting magnetic bearing; vibration suppression;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2004.831026
