DocumentCode :
3450196
Title :
Design and analysis of ripple-based controllers for buck converters based on discrete modeling and Floquet theory
Author :
Cortes, Jorge ; Svikovic, Vladimir ; Alou, Pedro ; Oliver, Jesus A. ; Cobos, Jose A.
Author_Institution :
Centro de Electron. Ind., Univ. Politec. de Madrid, Madrid, Spain
fYear :
2013
fDate :
23-26 June 2013
Firstpage :
1
Lastpage :
9
Abstract :
Ripple-based controls can strongly reduce the required output capacitance in PowerSoC converter thanks to a very fast dynamic response. Unfortunately, these controls are prone to sub-harmonic oscillations and several parameters affect the stability of these systems. This paper derives and validates a simulation-based modeling and stability analysis of a closed-loop V2Ic control applied to a 5 MHz Buck converter using discrete modeling and Floquet theory to predict stability. This allows the derivation of sensitivity analysis to design robust systems. The work is extended to different V2 architectures using the same methodology.
Keywords :
closed loop systems; control system synthesis; discrete systems; dynamic response; power convertors; robust control; sensitivity analysis; system-on-chip; Floquet theory; PowerSoC converter; buck converters; closed-loop control; discrete modeling; ripple-based controllers; robust systems design; sensitivity analysis; simulation-based modeling; stability analysis; subharmonic oscillations; very fast dynamic response; Analytical models; Capacitors; Matrix converters; Stability criteria; Switches; Voltage control; Control of DC/DC converters; Floquet theory; Ripple based; V2; V2Ic;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Control and Modeling for Power Electronics (COMPEL), 2013 IEEE 14th Workshop on
Conference_Location :
Salt Lake City, UT
ISSN :
1093-5142
Print_ISBN :
978-1-4673-4914-7
Type :
conf
DOI :
10.1109/COMPEL.2013.6626474
Filename :
6626474
Link To Document :
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