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Basic design and dynamic analysis of the small-sized flywheel energy storage system - application of Lorentz force type magnetic bearing -

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3 Author(s)
Kurita, N. ; Dept. of Electron. Eng., Gunma Univ., Kiryu, Japan ; Ishikawa, T. ; Matsunami, M.

Lead batteries are used mainly for energy storage. However, they are using chemicals and heavy materials, which will affect to environment badly. Therefore, clean energy storage systems are under development using magnetic bearing. However, eddy current causes serious rotational loss for energy storage. Therefore, Lorentz force type magnetic bearing is proposed. Rotational losses are expected to be negligible due to constant flux in airgap. To confirm operation of proposed magnetic bearing, an experimental setup is fabricated and basic characteristics are measured. Rotor could run-up to 3000 min-1. Moreover, new 5 DOF control type small sized energy storage flywheel is designed circumstantially.

Published in:

Electrical Machines and Systems, 2009. ICEMS 2009. International Conference on

Date of Conference:

15-18 Nov. 2009