Robust Fuzzy Control of an Active Magnetic Bearing with Delayed Feedback

This paper presented a robust fuzzy logic-base control scheme for a nonlinear magnetic bearing system with delayed feedback. A proper Takagi-Sugeno fuzzy model was chosen to represent the nonlinear magnetic bearing. A fuzzy-model-based PDC controller was designed in terms of a proposed delay-dependent stability criterion which guarantees the asymptotic stability of the fuzzy model. The results of simulation verified the effectiveness and superiority of the proposed method.