The flywheel system is designed to store 5 kWh as the usable energy with the maximum running speed of 18,000rpm. The rotor mass including the flywheel is 235 kg. Diameter of the flywheel is 716mm, and the axial length of the rotor is 778 mm including the thrust collar and the cap. [pdf]
[FAQS about Flywheel energy storage rotor weight]
To achieve a higher energy capacity, FESSs either include a rotor with a significant moment of inertia or operate at a fast spinning speed. Most of the flywheel rotors are made of either composite or metallic materials. [pdf]
[FAQS about Flywheel energy storage rotor speed]
To suppress the unbalanced response of FESS at critical speed, a damping ring (DR) device is designed for a hybrid supported FESS with mechanical bearing and axial active magnetic bearing (AMB). Initially, the dynamic model of the FESS with DR is established using Lagrange’s equation. [pdf]
[FAQS about Flywheel energy storage AMB damping]
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