Title :
Experiments on the H∞ disturbance attenuation control of a magnetic suspension system
Author :
Fujita, Masayuki ; Matsumura, Fumio ; Uchida, Kenko
Author_Institution :
Dept. of Electr. & Comput. Eng., Kanazawa Univ., Japan
Abstract :
An H∞ disturbance attenuation controller is experimentally demonstrated on a magnetic suspension system with a flexible beam. The apparatus utilized is a simplified model of magnetic bearings with an elastic rotor. A simple mathematical model of the apparatus is derived by taking all the disturbances into consideration. An H∞ disturbance attenuation control problem where the augmented plant is constructed with a frequency weighting function is set up. An iterative computing environment, MATLAB, is then employed to calculate the central controller. Finally, the controller is implemented using a digital signal processor, μPD77230, with 12-b A/D and D/A converters. Experimental results show that the designed system is robustly stable against various parameter changes and uncertainties
Keywords :
control system CAD; control system analysis computing; stability; μPD77230; H∞ disturbance attenuation control; MATLAB; control system CAD; control system analysis computing; digital signal processor; elastic rotor; flexible beam; frequency weighting function; iterative computing environment; magnetic bearings; magnetic suspension system; stability; Attenuation; Centralized control; Control systems; Digital signal processors; Frequency; MATLAB; Magnetic levitation; Mathematical model; Robustness; Uncertainty;
Conference_Titel :
Decision and Control, 1990., Proceedings of the 29th IEEE Conference on
Conference_Location :
Honolulu, HI
DOI :
10.1109/CDC.1990.203283
