Title :
Stability of the Fast Voltage Control Loop in DC-DC Converters
Author :
Petru Dobra;Lehel Nagy-Kulcsar;Mirela Trusca;Daniel Moga;Radu Balan
Author_Institution :
Department of Automatic Control, Technical University of Cluj, Romania. Petru.Dobra@aut.utcluj.ro
fDate :
5/1/2006 12:00:00 AM
Abstract :
This paper describes a method for stability analysis and design of a fast voltage loop in DC-DC converters. The method is based on the Popov criterion, which unifies tools for nonlinear system analysis with frequency domain analysis tools used in linear systems. This study establishes sufficient conditions for absolute stability of time-varying control systems. The proposed conditions extend in a simple way the classical Popov criterion to time-varying memoryless nonlinearities, using previous results of Kharitonov. They are expressed in terms of linear matrix inequalities (LMIs). The controller design procedure is demonstrated and experimentally verified on a DC-DC converter
Keywords :
"Voltage control","DC-DC power converters","Stability analysis","Nonlinear systems","Frequency domain analysis","Linear systems","Sufficient conditions","Time varying systems","Control systems","Linear matrix inequalities"
Conference_Titel :
Automation, Quality and Testing, Robotics, 2006 IEEE International Conference on
Print_ISBN :
1-4244-0360-X
DOI :
10.1109/AQTR.2006.254507
