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The paper reports on the investigation and developed of flywheel device as energy storage prototype. The FESS is designed to run in vacuum and is supported on low energy controlled active magnetic bearings (AMBs). The goal was to design and experimental verification of the self integrated flywheel conception with smart control of energy flow and accumulation. The low power control, with reduced bias current, approach of the flywheel active magnetic bearings is used. The weighting functions are designed in order to meet robust control conditions. The laboratory investigations of the flywheel with high gyroscopic effects operated at low speed meet the control and energy performances requirements.

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Booktitle: Proceedings of ISMB12