Smith-immune predictive control for steel uncertain time-delay system

2013 ◽  
Vol 32 (10) ◽  
pp. 2956-2959
Author(s):  
Xue-song XU ◽  
Yao OUYANG
Keyword(s):  
Time Delay ◽  
Predictive Control ◽  
Delay System ◽  
Time Delay System ◽  
Uncertain Time

A Time-Delay Prediction Control Method Based on Immune Optimization

2011 ◽  
Vol 317-319 ◽  
pp. 1250-1254
Author(s):  
Xue Song Xu ◽  
Xing Bao Liu
Keyword(s):  
Time Delay ◽  
Predictive Control ◽  
Control Method ◽  
Clonal Selection ◽  
Delay System ◽  
Time Delay System ◽  
Immune Optimization ◽  
Process System ◽  
Prediction Control ◽  
Delay Prediction

A time-delay predictive control algorithm based on immune computational intelligences is proposed in this paper. The predictive control parameter was optimized through immune clonal selection. Which avoids calculate Diophantine equation and inverse matrix, reduces the input dimensions of the nonlinear map. Simulations were conducted on the time-delay system, non-minimum phase of the process system, divergent system illustrate that this approach is a feasibility and effectiveness way and demonstrate its rapid responds, small overshoot and high adaptability for time delay system.

scholarly journals Passivity analysis and synthesis for uncertain time-delay systems

2001 ◽  
Vol 7 (5) ◽  
pp. 455-484 ◽  
Author(s):  
Magdi S. Mahmoud ◽  
Lihua Xie
Keyword(s):  
Time Delay ◽  
Design Method ◽  
Delay System ◽  
Delay Systems ◽  
Linear Matrix ◽  
Time Delay Systems ◽  
Time Delay System ◽  
Passivity Analysis ◽  
Analysis And Synthesis ◽  
Uncertain Time

In this paper, we investigate the robust passivity analysis and synthesis problems for a class of uncertain time-delay systems. This class of systems arises in the modelling effort of studying water quality constituents in fresh stream. For the analysis problem, we derive a sufficient condition for which the uncertain time-delay system is robustly stable and strictly passive for all admissible uncertainties. The condition is given in terms of a linear matrix inequality. Both the delay-independent and delay-dependent cases are considered. For the synthesis problem, we propose an observer-based design method which guarantees that the closed-loop uncertain time-delay system is stable and strictly passive for all admissible uncertainties. Several examples are worked out to illustrate the developed theory.

scholarly journals Discrete-Time Sliding Mode Control for Uncertain Networked System Subject to Time Delay

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Saulo C. Garcia ◽  
Marcelo C. M. Teixeira ◽  
José Paulo F. Garcia ◽  
Uiliam N. L. T. Alves ◽  
Jean M. S. Ribeiro
Keyword(s):  
Time Delay ◽  
Sliding Mode Control ◽  
Discrete Time ◽  
Uncertain Systems ◽  
Sliding Mode ◽  
Delay System ◽  
Control Law ◽  
Time Delay System ◽  
Mode Control ◽  
Uncertain Time

We deal with uncertain systems with networked sliding mode control, subject to time delay. To minimize the degenerative effects of the time delay, a simpler format of state predictor is proposed in the control law. Some ultimate bounded stability analyses and stabilization conditions are provided for the uncertain time delay system with proposed discrete-time sliding mode control strategy. A numerical example is presented to corroborate the analyses.

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