A Frequency-Domain Suboptimal Controller Design Methodology for Linear Time-Invariant Systems With Controller Structural Constraints

1992 ◽  
Vol 114 (3) ◽  
pp. 519-521
Author(s):  
Y. Lin
Keyword(s):  
Frequency Domain ◽  
Design Methodology ◽  
Controller Design ◽  
Linear Time ◽  
Structural Constraints ◽  
Linear Time Invariant ◽  
Linear Time Invariant Systems ◽  
Time Invariant

Nonfragile H∞ Output Feedback Controller Design for Linear Systems*

2003 ◽  
Vol 125 (1) ◽  
pp. 117-123 ◽  
Author(s):  
Guang-Hong Yang ◽  
Jian Liang Wang
Keyword(s):  
Output Feedback ◽  
Controller Design ◽  
Linear Time ◽  
Output Feedback Control ◽  
Disturbance Attenuation ◽  
Output Measurement ◽  
Linear Time Invariant ◽  
Measurement Feedback ◽  
Linear Time Invariant Systems ◽  
Time Invariant

This paper is concerned with the nonfragile H∞ controller design problem for linear time-invariant systems. The controller to be designed is assumed to have norm-bounded uncertainties. Design methods are presented for dynamic output (measurement) feedback. The designed controllers with uncertainty (i.e. nonfragile controllers) are such that the closed-loop system is quadratically stable and has an H∞ disturbance attenuation bound. Furthermore, these robust controllers degenerate to the standard H∞ output feedback control designs, when the controller uncertainties are set to zero.

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