scholarly journals Inverse Nyquist Criterion for Retarded Time-Delay Systems

1991 ◽  
Vol 27 (2) ◽  
pp. 239-241
Author(s):  
Naoto ABE ◽  
Kenko UCHIDA ◽  
Etsujiro SHIMEMURA
Keyword(s):  
Time Delay ◽  
Delay Systems ◽  
Time Delay Systems ◽  
Retarded Time ◽  
Nyquist Criterion

scholarly journals Stability and Robust Stabilisation Through Envelopes for Retarded Time-Delay Systems

2018 ◽  
Vol 51 (25) ◽  
pp. 1-6
Author(s):  
Caetano B. Cardeliquio ◽  
André R. Fioravanti ◽  
Catherine Bonnet ◽  
Silviu-Iulian Niculescu
Keyword(s):  
Time Delay ◽  
Delay Systems ◽  
Time Delay Systems ◽  
Retarded Time

scholarly journals Quasipolynomial Approach to Simultaneous Robust Control of Time-Delay Systems

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Nikolaj Semenič ◽  
Andrej Sarjaš ◽  
Amor Chowdhury ◽  
Rajko Svečko
Keyword(s):  
Time Delay ◽  
Closed Loop ◽  
Algebraic Method ◽  
Delay Systems ◽  
Control Law ◽  
Time Delay Systems ◽  
Robust Performance ◽  
Simultaneous Stabilization ◽  
Retarded Time ◽  
Spectrum Assignment

A control law for retarded time-delay systems is considered, concerning infinite closed-loop spectrum assignment. An algebraic method for spectrum assignment is presented with a unique optimization algorithm for minimization of spectral abscissa and effective shaping of the chains of infinitely many closed-loop poles. Uncertainty of plant delays of a certain structure is considered in a sense of a robust simultaneous stabilization. Robust performance is achieved using mixed sensitivity design, which is incorporated into the addressed control law.

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