Novel Active Disturbance Rejection Control of Self-Sensing Magnetic Bearings for Flywheel Energy Storage

B. X. S. Alexander, Richard Rarick, Lili Dong
Authors are with the Center for Research in Electronics and Aerospace Technology (CREATE), and Department of Electrical Engineering, Cleveland State Univ., Cleveland, OH 44115, USA

A linearized model of a self-sensing magnetic bearing used in a flywheel energy storage application is analyzed and an intrinsic feedback mechanism is identified. Based on the model, a cascaded-loop controller is designed using a novel control design technique which actively rejects external disturbances, taking advantage of the feedback mechanism. Simulation results of force-disturbance rejection performance are presented.


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