Majlesi Journal of Electrical Engineering Robust Stability and Robust H2 and H-infinity Output-Feedback Control of a Magnetic Bearing System via LMI Optimization Volume 3 (2009) Issue 4, March 2009 2024 02 28 Robust Stability and Robust H2 and H-infinity Output-Feedback Control of a Magnetic Bearing System via LMI Optimization 10.1234/mjee.v3i4.248 EN MohammadReza Davoodi Fatemeh Jamshidi Journal Article 2024 02 28 This paper offers a design procedure for robust stability, robust H-infinity control and robust H2 control via dynamic output feedback for a class of uncertain linear systems. The uncertainties are of norm bounded type. Then in order to support a high-speed energy storage flywheel, these procedures are applied to an active radial magnetic bearing system. The state space matrices of this controller are the solution of some linear matrix inequalities (LMIs).