scholarly journals Design of Lyapunov Theory based State Feedback Controller for Time-Delay Systems

2013 ◽  
Vol 62 (1) ◽  
pp. 95-100
Author(s):  
Hyun Cheol Cho ◽  
Chan Bai Shin
Keyword(s):  
Time Delay ◽  
State Feedback ◽  
Lyapunov Theory ◽  
Feedback Controller ◽  
Delay Systems ◽  
Time Delay Systems ◽  
State Feedback Controller

Design of Observer-Based Feedback Control for Time-Delay Systems With Application to Automotive Powertrain Control

2009 ◽  
Author(s):  
Sun Yi ◽  
Patrick W. Nelson ◽  
A. Galip Ulsoy
Keyword(s):  
Time Delay ◽  
Feedback Control ◽  
State Feedback ◽  
Feedback Controller ◽  
State Feedback Control ◽  
Delay Systems ◽  
Lambert W Function ◽  
Actual State ◽  
Time Delay Systems ◽  
New Approach

A new approach for observer-based feedback control of time-delay systems is developed. Time-delays in systems lead to characteristic equations of infinite dimension, making the systems difficult to handle with classical control methods. In this paper, a recently developed approach, based on the Lambert W function, is used to address this difficulty and to control time-delay systems by designing an observer-based state feedback controller via eigenvalue assignment. The designed observer provides estimation of the state, which converges asymptotically to the actual state, and is then used for state feedback control. The feedback controller and the observer take simple linear forms and, thus, are easy to implement when compared to nonlinear methods. This new approach is applied, for illustration, to the control of a diesel engine to achieve improvement in fuel efficiency and reduction in emissions. The simulation results show excellent closed-loop performance.

Fault Control for a Class of Nonlinear System with Input Delay

2012 ◽  
Vol 482-484 ◽  
pp. 1801-1804
Author(s):  
Yang Yu ◽  
Wei Wang
Keyword(s):  
Control System ◽  
Nonlinear System ◽  
State Feedback ◽  
Fuzzy Model ◽  
Lyapunov Theory ◽  
Feedback Controller ◽  
Input Delay ◽  
State Feedback Controller ◽  
The Stability ◽  
Delay Dependent

The paper studies fuzzy fault control for a class of nonlinear system with input delay based on T-S fuzzy model. The state feedback controller that ensures the stability of fuzzy tolerant control system is given via Lyapunov theory and derived in terms of LMI and the results are delay-dependent. Simulation examples are given to illustrate the effectiveness of the approach.

Sign in / Sign up

Export Citation Format

Share Document