Title :
An averaged large-signal modeling method for resonant converters
Author :
Castilla, M. ; De Vicuña, L. Garcia ; López, M. ; Barcons, V.
Author_Institution :
Dept. d´´Enginyeria Electronica, Univ. Politecnica de Catalunya, Barcelona, Spain
Abstract :
An averaged large-signal modelling method for resonant converters is presented, which is based on the classification of the state variables according to their dynamic behaviour. The modelling technique is applied to a series-parallel resonant converter, which is controlled for switching at zero-resonant current. Based on the averaged model, a sliding mode controller for this resonant converter is proposed, which provides robustness in relation to external disturbances and a good dynamic response of the output voltage
Keywords :
dynamic response; resonant power convertors; robust control; switching circuits; variable structure systems; averaged large-signal modeling method; averaged model; dynamic behaviour; dynamic response; external disturbances; modelling technique; output voltage; resonant converters; series-parallel resonant converter; sliding mode controller; state variables classification; zero-resonant current switching; Equations; Frequency conversion; Resonance; Robust control; Sliding mode control; Steady-state; Switches; Switching converters; Voltage control; Wave functions;
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1997. IECON 97. 23rd International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-3932-0
DOI :
10.1109/IECON.1997.671775
