Files in this item



application/pdf9953079.pdf (6MB)Restricted to U of Illinois
(no description provided)PDF


Title:Robust Repetitive Control and Its Application
Author(s):Li, Jianwu
Doctoral Committee Chair(s):Tsao, Tsu-Chin
Department / Program:Mechanical Engineering
Discipline:Mechanical Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Engineering, System Science
Abstract:Both OPRRC and TPRRC are successfully applied to an electrohydraulic actuator for non-circular machining of camshaft to show their effectiveness. A dual stage actuator using an electrohydraulic actuator and a piezoelectric actuator is developed to further reduce cam profile tracking errors. The design, modeling, analysis and preliminary control design of the dual stage actuator are presented. The experimental results are also presented to demonstrate the effectiveness of dual stage actuator. Finally, TPRRC is also applied to a disk drive read-write head following tracking servo control problem to reject both repeatable runout (RRO) and non-repeatable runout (NRRO) simultaneously. Simulation results show that the position error signal (PES) of a disk drive is reduced by three folds. The initial response of the TPRRC as well as most other repetitive control systems typically takes one period (of the periodic exogenous signal) to converge. A feedforward control is proposed and shown to increase the transient convergence rate for the TPRRC when switching from one data track to another.
Issue Date:1999
Description:176 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1999.
Other Identifier(s):(MiAaPQ)AAI9953079
Date Available in IDEALS:2015-09-25
Date Deposited:1999

This item appears in the following Collection(s)

Item Statistics