DocumentCode :
2819167
Title :
Controller synthesis with guaranteed closed-loop phase constraints
Author :
Haddad, Wassim M. ; Chellaboina, VijaySekhar ; Gholami, Behnood
Author_Institution :
Georgia Inst. of Technol., Atlanta
fYear :
2007
fDate :
12-14 Dec. 2007
Firstpage :
3757
Lastpage :
3761
Abstract :
In this paper, we present an analysis and synthesis framework for guaranteeing that the phase of a single-input, single-output closed-loop transfer function is contained in the interval [-alpha, alpha] for a given alpha>0 at all frequencies. Specifically, we first derive a sufficient condition involving a frequency domain inequality for guaranteeing a given phase constraint. Next, we use the Kalman-Yakubovich-Popov theorem to derive an equivalent time domain condition. In the case where alpha=pi/2, we show that frequency and time domain sufficient conditions specialize to the positivity theorem. Furthermore, using linear matrix inequalities, we develop a controller synthesis framework for guaranteeing a phase constraint on the closed-loop transfer function. Finally, we extend this synthesis framework to address mixed gain and phase constraints on the closed-loop transfer function.
Keywords :
Popov criterion; closed loop systems; control system synthesis; linear matrix inequalities; time-domain analysis; transfer functions; Kalman-Yakubovich-Popov theorem; closed-loop phase constraints; closed-loop transfer function; controller synthesis; equivalent time domain condition; frequency domain inequality; linear matrix inequalities; positivity theorem; single-output closed-loop transfer function; time domain; Constraint theory; Frequency domain analysis; Frequency synthesizers; Linear matrix inequalities; Robust stability; State-space methods; Sufficient conditions; Symmetric matrices; Transfer functions; Uncertainty;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Decision and Control, 2007 46th IEEE Conference on
Conference_Location :
New Orleans, LA
ISSN :
0191-2216
Print_ISBN :
978-1-4244-1497-0
Electronic_ISBN :
0191-2216
Type :
conf
DOI :
10.1109/CDC.2007.4434291
Filename :
4434291
Link To Document :
بازگشت