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New strategy for 10 MWh class energy storage flywheel system supported by superconducting magnetic bearing is reported in this paper. From the results of vibration analysis, we had confirmed that there are two rigid modes and a flexible mode in the range of control. This paper reported the adaptive vibration control for passing over the flexible critical speed in the range of control. In order to improve the performance of 10 MWh class energy storage flywheel system while the system passing over it's critical speed, H∞ and a unbalance vibration control algorithm is used to control the system in this paper. From simulations, we can see the system can pass over it's critical speed with very small amplitude by H∞ and the unbalance vibration control algorithm. Lastly, the stability of system with and without gyroscopic effect is reported in this paper.

nihon kikai gakkai ronbunshū. c

Adaptive Vibration Control for Passing Over Flexible Critical Speed of 10 MWh Class Energy Storage Flywheel System Using Superconducting Magnetic Bearing