NDLI: Robust sliding mode control for axial AMB systems

Content Provider	IEEE Xplore Digital Library
Author	Nan-Chyuan Tsai Chao Wen Chiang Chien Hsien Kuo
Copyright Year	2004
Description	Author affiliation: Dept. of Mech. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan (Nan-Chyuan Tsai; Chao Wen Chiang; Chien Hsien Kuo)
Abstract	Axial motion of a rotor in AMB (active magnetic bearing) systems is modeled and controlled by the sliding mode control law. A prefilter is embedded to provide the integral action so that the steady state error of position regulation can be eliminated. Computer and experimental simulation are both reported to verify the validity of the hybrid design of the SMC (sliding mode controller) cascaded with the prefilter. A test rig of unbalanced beam is implemented to be appropriately real-time controlled, exhibiting satisfied performance and robustness with respect to the system parameter uncertainties. The magnetic force is generated by a DSP-based digital microprocessor. In comparison, a counter example of conventional PI (proportional and integral) controller that is mostly employed in axial rotor motion, is presented to illustrate potential instability.
Starting Page	64
Ending Page	69
File Size	910570
Page Count	6
File Format	PDF
ISBN	0780388739
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-07-20
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	ASCC
Subject Keyword	Robust control Real time systems System testing Computational modeling Computer simulation Computer errors Steady-state Motion control Sliding mode control Magnetic levitation
Content Type	Text
Resource Type	Article

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