Robust Control of Magnetic Bearing Systems Using μ-Synthesis with Descriptor Form

Abstract

This paper is concerned with robust control for actual milling AMB spindle. We apply a method of μ-Synthesis based on the descriptor form representation to magnetic bearing system. The unmodeled dynamics and the sensitivity performance are also taken into consideration. By using this method physical uncertainties are independently treated with and a controller is designed to achieve not only robust performance but also robust disturbance suppressions.