Controllers Permanent magnets 5 Synchronous motors 3 'current 2 Active disturbance rejection 2 Active disturbance rejection controller 2 Active disturbances rejection controls 2 Anti-interference 2 Anti-interference performance 2 Bearing-rotor system 2 Currents distributions 2 Disturbance rejection 2 Dynamic models 2 Energy conservation 2 Energy conversion 2 Inverse problems 2 Magnetic bearings 2 Magnetism 2 Performance 2 Redundant structure 2 Torque 2 Wind power 2 active disturbance rejection controller 2 anti-interference performance 2 magnetic bearings 2 redundant structures 2 Concurrency control 1 Control methods 1 Control schemes 1 Conventional-PI controller 1