Title :
Robust active magnetic bearing control using stabilizing dynamical compensators
Author :
Duan, G.-R. ; Wu, Z.Y. ; Bingham, C.M. ; Howe, D.
Author_Institution :
Dept. of Electron. & Electr. Eng., Sheffield Univ., UK
Abstract :
The robust control of active magnetic bearings, based on a linearised interval model, is considered. Through robust stability analysis, all the first-order robust stabilizing dynamical compensators for the interval system are obtained. Disturbance attenuation and minimum control effort are also addressed. The approach is applied to a high-speed flywheel supported by two active and two passive magnetic bearings. Simulation and experimental results both show that it is simple, effective, and robust
Keywords :
compensation; flywheels; machine bearings; machine control; magnetic bearings; robust control; active magnetic bearings; disturbance attenuation; first-order robust stabilizing dynamical compensators; high-speed flywheel; interval system; linearised interval model; minimum control effort; passive magnetic bearings; robust active magnetic bearing control; robust control; robust stability analysis; stabilizing dynamical compensators; Attenuation; Control systems; Electromagnets; Flywheels; Magnetic levitation; Mathematical model; Robust control; Robust stability; Robustness; Velocity control;
Conference_Titel :
Electric Machines and Drives, 1999. International Conference IEMD '99
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-5293-9
DOI :
10.1109/IEMDC.1999.769156
