Abstract:
Flywheel Energy Storage System (FESS) are
being considered as a promising solution for energy storage in
Electric Vehicles (EVs). However, usage of conventional bearings
for such high speed rotors will cause high noise level in the
vehicle. On the other hand, Active Magnetic Bearings (AMBs)
can offer contactless suspension for the flywheel rotor system,
thereby, resulting in noiseless operation of the FESS. Owing to
the irregular road conditions, the AMB-FESS system will be
subject to parametric excitation, which is known to cause
instability in a system. This work therefore tests the performance
of AMBs for FESS, in the case of a EV subject to harmonic base
pitch, roll and heave motion with different frequencies.
