Title :
A MISO sliding mode control for a high speed EMS MAGLEV-vehicle using disturbance estimation
Author :
Kozek, Martin ; Puchhammer, Gregor ; Jorgl, Hanns Peter
Author_Institution :
Inst. fur Maschinen- und Prozessautomatisierung, Univ. of Technol. Vienna, Austria
Abstract :
The levitation system of high speed electromagnetic system (EMS) MAGLEV-vehicles has been successfully controlled by sliding mode control (SMC). This nonlinear control method is robust with respect to parameter variations and force disturbances but fails to compensate guideway disturbances just like linear controllers. To maintain the desired robustness and minimize the effect of guideway disturbances SMC is combined with a linear disturbance observer whose weighted output is added to the set point. Various simulations using an extensive nonlinear model show the excellent performance of the new approach
Keywords :
magnetic levitation; multivariable control systems; nonlinear control systems; railways; robust control; transport control; variable structure systems; MISO sliding mode control; disturbance estimation; electromagnetic system MAGLEV-vehicles; extensive nonlinear model; force disturbance robustness; guideway disturbance compensation; high-speed EMS MAGLEV-vehicle; linear disturbance observer; nonlinear control; parameter variation robustness; sliding mode control; Magnetic levitation; Multivariable systems; Nonlinear systems; Rail transportation control systems; Robustness; Variable structure systems;
Conference_Titel :
Control Applications, 1994., Proceedings of the Third IEEE Conference on
Conference_Location :
Glasgow
Print_ISBN :
0-7803-1872-2
DOI :
10.1109/CCA.1994.381401
