Title :
The Sliding Variable Structure Control of Mixed Magnetic Bearing System
Author :
Hua, Li ; Xiaolong, Chen
Author_Institution :
Coll. of Inf. Sci. & Eng., Northeastern Univ., Shenyang, China
Abstract :
Mixed magnetic bearing system (MMBS) has a complex non-linear. Firstly, this paper analyzes MMBS according to the principle and a mathematical model is established. And then a sliding mode variable structure control (SMVSC) method is presented, which bases on non-linear system. Compared with the traditional PID control method, SMVSC has good stability and robustness. At the same time, it can rapidly achieve system balance within a short time and has a strong inhibitory effect to interfering signals. Simulation results show the effectiveness and practicability of the algorithm.
Keywords :
machine bearings; magnetic bearings; magnetic levitation; magnetic variables control; nonlinear control systems; robust control; rotors; three-term control; variable structure systems; MMBS; PID control method; SMVSC; mathematical model; mixed magnetic bearing system; nonlinear system; sliding mode variable structure control; Control systems; Magnetic analysis; Magnetic levitation; Magnetic variables control; Mathematical model; Nonlinear control systems; Robust control; Robust stability; Sliding mode control; Three-term control; mixed magnetic bearing system (MMBS); robustness; sliding mode variable structure control (SMVSC);
Conference_Titel :
Intelligent Computation Technology and Automation (ICICTA), 2010 International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-4244-7279-6
Electronic_ISBN :
978-1-4244-7280-2
DOI :
10.1109/ICICTA.2010.672
