Robust state feedback control of LTV systems: Nonlinear is better than linear

被引：24

作者：

Blanchini, F ^{[1
]}

Megretski, A

机构：

[1] Univ Udine, Dipartimento Matemat & Informat, I-33100 Udine, Italy

[2] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA

来源：

IEEE TRANSACTIONS ON AUTOMATIC CONTROL | 1999年 / 44卷 / 04期

关键词：

Lyapunov functions; nonlinear control; parametric uncertainties; robust stabilization; state feedback;

D O I：

10.1109/9.754822

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Examples of linear control systems with fast time-varying uncertain coefficients are given, which can be stabilized by a nonlinear memoryless state feedback, but cannot be stabilized by a linear time-invariant dynamic state feedback. By means of one of these examples the authors show that the closed-loop quadratic stability margin may be infinitely smaller than the actual stability margin.

引用

页码：802 / 807

页数：6

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