Title :
Robust control for carriage drum printer
Author :
Knight, Richard E. ; Kolodziej, Wojtek J.
Author_Institution :
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
Abstract :
A dynamic controller is developed for a nonlinear carriage drum printer model. The nonlinearities include static and Coulomb friction. A change in operating points also introduces other nonlinearities which can be modeled as perturbation feedbacks. Frequency weighting on the input is used to achieve decoupling between the carriage and drum systems. The H2 suboptimal control theory is the basis for calculation of the proposed dynamic controller. The H2 controller design theory is modified by parameterizing the state matrix by the operating point parameter variation which is realized by a table lookup routine. Another approach using the H∞ optimal criteria is developed as a comparison to the H2 based controller
Keywords :
H∞ control; control system synthesis; feedback; friction; printers; robust control; state-space methods; suboptimal control; Coulomb friction; H∞ optimal criteria; H2 controller design theory; H2 suboptimal control theory; carriage drum printer; dynamic controller; frequency weighting; nonlinearities; operating points; perturbation feedbacks; robust control; state matrix; static friction; H-infinity control; Mechanical factors; Output feedback; Printers; Robustness; State space methods; Suboptimal control;
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.1994.381201
