Abstract

This paper describes an application of sliding mode control to an active magnetic bearing (AMB) system. A sliding mode control is robust to model uncertainties and external disturbances. To ensure the authority of sliding mode control, model parameter uncertainties caused from linearization of electro-magnetic attractive force are analyzed and a domain of parameter uncertainties in which reachability to sliding surface is guaranteed is derived. The validity of the analysis is illustrated along with some simulation examples.

• Keywords: Active Magnetic Bearing(능동자기베어링),Sliding Mode Control(슬라이딩모드제어),Linearized Error(선형화 오차),Sliding Surface(슬라이딩 평면),Reachability(도달성)