A revisit to the gain and phase margins of linear quadratic regulators

被引：1
|
作者：
Holmberg, U [1 ]
机构：
[1] Univ Newcastle, Dept Elect & Comp Engn, Newcastle, NSW 2308, Australia
[2] Univ Melbourne, Dept Elect & Elect Engn, Parkville, Vic 3052, Australia
来源：
IEEE TRANSACTIONS ON AUTOMATIC CONTROL | 2001年 / 46卷 / 09期
关键词：
D O I：
10.1109/9.948488
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
In the above paper,(1) an example is given, showing that the LQ controller gives an arbitrary small gain margin with respect to variations of the open-loop plant. As a remedy, a dynamic-state feedback is proposed which is claimed to give an arbitrary large gain margin. This is incorrect. In fact, the proposed dynamic state feedback controller does not even stabilize the nominal system.
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页码：1508 / 1509
页数：2
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