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.
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收藏
页码：802 / 807
页数：6
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