| Full text | |
| Author(s): |
Garcia, Jose Paulo F.
[1]
;
Garcia, Lizete Maria C. F.
[2]
;
Apolinario, Gisele C.
[3]
;
Rodrigues, Fernando B.
[3]
Total Authors: 4
|
| Affiliation: | [1] State Univ Sao Paulo, Dept Elect Engn, Ilha Solteira - Brazil
[2] State Univ Sao Paulo, Dept Math, Ilha Solteira - Brazil
[3] State Univ Sao Paulo, Lab Res Control, Ilha Solteira - Brazil
Total Affiliations: 3
|
| Document type: | Journal article |
| Source: | MATHEMATICS AND COMPUTERS IN SIMULATION; v. 80, n. 2, p. 449-465, OCT 2009. |
| Web of Science Citations: | 6 |
| Abstract | |
Computation time delay in digital control systems reduces its robustness as well as degrades its performance. In this paper, the computation time delay is assumed to be constant and smaller than the sampling time and is treated as a fault to be detected, using an appropriate controller to minimize its effects. Thus, a discrete-time sliding mode control that improves the systems' performance when a Computation time delay fault is found is proposed herein. A robust sliding mode observer-based is used to generate the residuals. Using the accumulated residual functions, a new scheme for fault detection and for controller adaptation is proposed. The technique is used to control a Rotary Motion Inverted Pendulum System to illustrate the design procedures and the effectiveness of the method. (C) 2009 IMACS. Published by Elsevier B.V. All rights reserved. (AU) | |
| FAPESP's process: | 06/58850-6 - Diagnosis, prognosis and fault accommodation for dynamical systems |
| Grantee: | Takashi Yoneyama |
| Support Opportunities: | Research Projects - Thematic Grants |