Title :
A VSS disturbance observer and its applications
Author :
Chen, Xinkai ; Guo, Shuxiang ; Fukuda, Toshio
Author_Institution :
Dept. Electr. & Electron. Eng., Mie Univ., Tsu, Japan
Abstract :
Presents a disturbance observer based on VSS theory for minimum-phase (with respect to the relation between the disturbance and output) dynamical systems with arbitrary relative degrees. The model uncertainties, the nonlinear parts of the system are merged into the disturbance term, and are regarded as a part of the disturbances. The upper bound of the disturbances is assumed to be known as a priori information. Simulation results are presented to show the robustness and effectiveness of the new disturbance observer. To show the practicality of the proposed design method, it is employed to control a linear motor
Keywords :
linear motors; machine control; observers; transfer functions; uncertain systems; variable structure systems; linear motor; minimum-phase dynamical systems; model uncertainties; robustness; variable structure system disturbance observer; Control systems; Filters; Frequency; Intelligent systems; Mechanical systems; Motion control; Robustness; Uncertainty; Upper bound; Variable structure systems;
Conference_Titel :
Control Applications, 1998. Proceedings of the 1998 IEEE International Conference on
Conference_Location :
Trieste
Print_ISBN :
0-7803-4104-X
DOI :
10.1109/CCA.1998.728469
