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An iterative algorithm for maximizing robust performance in H∞ loop-shaping design

delete2012-04-02
delete7
PRE
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M
M. Osinuga *
S
Sourav Patra
A
Alexander Lanzon
DOI:10.1002/rnc.2809delete
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Abstract

Abstract

En 中文
In this paper, an algorithm that gives the best achievable performance bound on a given control problem is proposed using the H loop-shaping design framework. In view of standard design requirements, the robust performance is maximized at low and high frequencies while keeping the robust stability margin above a specified level, and the robust stability margin is directly improved at mid frequencies (around crossover). The proposed frequency-dependent optimization problem is cast in an LMI framework. The resulting solution algorithm simultaneously synthesizes loop-shaping weights and a stabilizing controller that achieve the maximum performance for a given level of robust stability margin corresponding to sufficient gain and phase margins of the closed-loop system. Copyright (c) 2012 John Wiley & Sons, Ltd.
Keywords:
H-infinity loop-shaping
robust performance
robust stability margin
weight optimization
LMI
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Journal

International Journal of Robust and Nonlinear Control cover
International Journal of Robust and Nonlinear Control
IF:
3.2
Papers:
6.9K
Citations:
1.4W

Organization

I
indian institute of technology system (iit system)
Scholars:
9.5W
Papers: 9.9W
Citations: 93
U
University of Manchester
Scholars:
5.7W
Papers: 5.2W
Citations: 7.4W