Stability and performance robustness analysis with highly structured uncertainties: necessary and sufficient test

1990 ◽  
Vol 35 (3) ◽  
pp. 350-352 ◽  
Author(s):  
K.Y. Foo
Keyword(s):  
Robustness Analysis ◽  
And Performance ◽  
Necessary And Sufficient ◽  
Sufficient Test ◽  
Performance Robustness

Robustness of Adaptive Rotor Vibration Control to Structured Uncertainty

1997 ◽  
Vol 119 (2) ◽  
pp. 243-250 ◽  
Author(s):  
C. R. Knospe ◽  
S. M. Tamer ◽  
S. J. Fedigan
Keyword(s):  
Robustness Analysis ◽  
Stability Margin ◽  
Singular Values ◽  
Open Loop ◽  
Worst Case ◽  
Loop Control ◽  
Structured Uncertainty ◽  
Analysis Of Stability ◽  
And Performance ◽  
Performance Robustness

Recent experimental results have demonstrated the effectiveness of adaptive open-loop control algorithms for the suppression of unbalance response on rotors supported in active magnetic hearings. Herein, tools for the analysis of stability and performance robustness of this algorithm with respect to structured uncertainty are derived. The stability and performance robustness analysis problems are shown to be readily solved using a novel application of structured singular values. An example problem is presented which demonstrate the efficacy of this approach in obtaining tight bounds on stability margin and worst case performance.

Robustness of adaptive discrete-time LQG control for first-order systems

2010 ◽  
Vol 58 (1) ◽  
pp. 89-97
Author(s):  
A. Królikowski ◽  
D. Horla
Keyword(s):  
Control System ◽  
Discrete Time ◽  
Point Of View ◽  
Constrained Control ◽  
Certainty Equivalence ◽  
First Order ◽  
Lqg Control ◽  
Self Tuning ◽  
And Performance ◽  
Performance Robustness

Robustness of adaptive discrete-time LQG control for first-order systemsThe discrete-time adaptive LQG control of first-order systems is considered from robustness point of view. Both stability and performance robustness are analyzed for different control system structures. A case of amplitude-constrained control is presented, and application of certainty equivalence for self-tuning implementation is also discussed.

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