Robust adaptive control of time-varying linear plants using polynomial approximation

1993 ◽  
Vol 140 (2) ◽  
pp. 111 ◽  
Author(s):  
X.Y. Gu ◽  
C. Shao
Keyword(s):  
Adaptive Control ◽  
Polynomial Approximation ◽  
Robust Adaptive Control ◽  
Time Varying ◽  
Robust Adaptive

Robust Adaptive Control of Robotic Manipulator with Input Time-varying Delay

2019 ◽  
Vol 17 (9) ◽  
pp. 2193-2202 ◽  
Author(s):  
Saim Ahmed ◽  
Haoping Wang ◽  
Muhammad Shamrooz Aslam ◽  
Imran Ghous ◽  
Irfan Qaisar
Keyword(s):  
Adaptive Control ◽  
Robotic Manipulator ◽  
Robust Adaptive Control ◽  
Time Varying ◽  
Time Varying Delay ◽  
Input Time ◽  
Robust Adaptive ◽  
Varying Delay

Robust Adaptive Control of Mildly Nonlinear Systems With Time Varying Input/Output Delays

2012 ◽  
Author(s):  
James P. Nelson ◽  
Mark J. Balas ◽  
Richard S. Erwin
Keyword(s):  
Adaptive Control ◽  
Nonlinear Systems ◽  
Adaptive Controller ◽  
Robust Adaptive Control ◽  
Control Law ◽  
Time Varying ◽  
Robust Adaptive ◽  
Input Delays ◽  
Persistent Disturbances ◽  
Adaptive Control Law

Many systems must operate in the presence of delays both internal to the system and in its inputs and outputs. In this paper we present a robustness result for mildly nonlinear systems. We use this result to show that, for small unknown time varying input delays, a simple adaptive controller can produce output regulation to a neighborhood with radius dependent upon the size of an upper bound on the delay. This regulation occurs in the presence of persistent disturbances and the convergence is exponential. We conclude with an example to illustrate the behavior of this adaptive control law.

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