On the instability of iterative learning control due to sampling delay

Author

Xu, Jian-Xin ; Dote, Yasuhiko ; Wang, Xiaowei ; Shun, Boming

Author_Institution

Dept. of Electr. Eng., Nat. Univ. of Singapore, Singapore

Volume

1

fYear

1995

fDate

6-10 Nov 1995

Firstpage

150

Abstract

The instability problem of iterative learning control schemes caused by sampling delay is explored and discussed analytically. The inherent instability is essentially due to the high sensitivity of iterative learning control methods to the stringent initial reset condition and sampling delay resulted from discretization. A modification is proposed for iterative learning control systems to overcome the instability problem. The effectiveness is demonstrated through comparative studies on numerical examples

Keywords

adaptive control; adaptive systems; control system analysis; delays; discrete systems; iterative methods; learning systems; sensitivity analysis; stability; control simulation; discretization; initial reset condition; instability; iterative learning control; modification; numerical examples; sampling delay; sensitivity; Algorithm design and analysis; Computer science; Control systems; Delay effects; Error correction; Iterative algorithms; Nonlinear systems; Open loop systems; Sampling methods; Systems engineering and theory;

fLanguage

English

Publisher

ieee

Conference_Titel

Industrial Electronics, Control, and Instrumentation, 1995., Proceedings of the 1995 IEEE IECON 21st International Conference on

Conference_Location

Orlando, FL

Print_ISBN

0-7803-3026-9

Type

conf

DOI

10.1109/IECON.1995.483349

Filename

483349