In this paper, 5 kWh class Superconductor Flywheel Energy Storage System (SFES) was constructed including motor/generator, superconductor magnetic bearing(SMB), composite rotor and electromagnetic damper(EMD) system. High speed rotation test was performed after levitating flywheel rotor only using EMD without SMB. the PD controller of EMD was designed. the control system is constructed using xPC which is real time digital control system. the results of high speed rotation test showed that proposed EMD system have sufficient damping in cylindrical mode and conical mode, and vibration of wheel was suppressed below 10 .
Keywords
Superconductor Flywheel Energy Storage System(SFES); EMD; SMB;
Measurement of Vibration Signals of a Gun Barrel Type Structure using Mechanical Filter/ [Ryu, Bong-Jo;Koo, Kyung-Wan;] / The Transactions of the Korean Institute of Electrical Engineers P
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Design and Construction of 10 kWh Class Flywheel Energy Storage System/ [Jung, S.Y.;Han, S.C.;Han, Y.H.;Park, B.J.;Bae, Y.C.;Lee, W.R.;] / Progress in Superconductivity