A diamagnetically stabilized magnetically levitated flywheel battery

Author

Sabihuddin, S. ; Kiprakis, A. ; Mueller, Matthias

Author_Institution

Inst. for Energy Syst., Univ. of Edinburgh, Edinburgh, UK

fYear

2013

fDate

27-30 March 2013

Firstpage

1

Lastpage

5

Abstract

Flywheel energy storage (FES) provides high density storage. Traditional systems relied on mechanical bearings. Bearings can be replaced by electromagnetic variations. Modern FES systems levitate inertial mass on electromagnetic cushions. Levitation consumes energy, so FES systems are confined to short-term power quality applications. An FES system that uses passive levitation is presented. Passive systems consume no energy. Utilizing diamagnetic materials, it´s possible to stabilize unstable levitation. A vacuum-enclosed switched reluctance electric machine (SRM) designed around this stabilized levitation is proposed. The reduced friction and energy consumption is expected to extend the range of FES systems from short-term to medium-term storage applications.

Keywords

diamagnetic materials; electromagnetic devices; energy consumption; flywheels; machine bearings; magnetic levitation; power supply quality; reluctance machines; stability; FES; SRM; diamagnetic material; diamagnetically stabilized magnetically levitated flywheel battery; electromagnetic cushion; electromagnetic variation; energy consumption; flywheel energy storage; friction reduction; inertial mass levitation; mechanical bearing; medium-term storage application; passive levitation; short-term power quality application; short-term storage application; unstable levitation stability; vacuum-enclosed switched reluctance electric machine; Damping; Flywheels; Magnetic fields; Magnetic levitation; Reluctance motors; FES; bearing; diamagnet; energy; flywheel; levitation; magnetic; passive; reluctance; storage;

fLanguage

English

Publisher

ieee

Conference_Titel

Ecological Vehicles and Renewable Energies (EVER), 2013 8th International Conference and Exhibition on

Conference_Location

Monte Carlo

Print_ISBN

978-1-4673-5269-7

Type

conf

DOI

10.1109/EVER.2013.6521621

Filename

6521621