Robustness of the Smith predictor with respect to uncertainty in the time-delay parameter

被引：0

作者：

Adam, EJ ^{[1
]}

Latchman, HA ^{[1
]}

Crisalle, OD ^{[1
]}

机构：

[1] Univ Nacl Litoral, Fac Ingn Quim, Santa Fe, Argentina

来源：

PROCEEDINGS OF THE 2000 AMERICAN CONTROL CONFERENCE, VOLS 1-6 | 2000年

关键词：

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The robust stability of the Smith predictor scheme for time-delay compensation is analyzed with respect to uncertainty in the time-delay parameter. Appropriate definitions are introduced for the phase margin and complementary phase margin of nonminimum-phase systems, and are used to characterize the domains of stability for the closed loop using a Nyquist approach. Rigorous arguments are used to show that the stability domain is discontinuous when the nominal Nyquist function has more than one magnitude-crossover points. Robust stability results are given for the cases where the Nyquist plot has no magnitude-crossover points, and when it has a single or multiple crossover points. The results are illustrated through an example.

引用

页码：1452 / 1457

页数：6

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