B08 Dynamic characteristics of flywheel energy storage system using SMB and PMB including damper

Abstract

Many serious damages may occur if any momentary voltage drop or blackout suddenly happens, especially in data centers, hospitals, railroads, and telecommunication systems. Therefore, the energy storage systems are required to affect the power system by a momentary voltage drop. Our experimental machine uses a superconducting magnetic bearing (SMB) and a permanent magnet bearing (PMB). To have more damping coefficient, the PMB including damper was proposed. This paper shows prototype flywheel energy storage system using PMB including damper and SMB. Furthermore, this paper also shows evaluation of vibration on this prototype.