Title :
A new perspective on ℋ2 controller reduction
Author :
Lili Kong ; Kemin Zhou
Author_Institution :
Dept. of Electr. & Comput. Eng., Louisiana State Univ., Baton Rouge, LA, USA
Abstract :
This paper considers ℋ2 or LQG controller reduction from all (suboptimal) stabilizing ℋ2 controller parametrization. It is shown that the closed-loop stability is guaranteed and performance degradation is limited if certain weighted controller reduction errors are small.
Keywords :
H2 control; approximation theory; closed loop systems; linear quadratic Gaussian control; stability; ℋ2 controller parametrization stabilization; ℋ2 controller reduction; LQG controller reduction; closed-loop stability; performance degradation; weighted controller reduction errors; Approximation methods; Equations; Frequency control; Mathematical model; Reduced order systems; Stability criteria; ℋ2 performance; controller reduction; frequency-weighted balanced approximation;
Conference_Titel :
Decision and Control (CDC), 2012 IEEE 51st Annual Conference on
Conference_Location :
Maui, HI
Print_ISBN :
978-1-4673-2065-8
Electronic_ISBN :
0743-1546
DOI :
10.1109/CDC.2012.6427003
