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Limits of the frequency response for the analysis of ripple-based controllers
Citation
Cortés, Jorge, Svikovic, Vladimir, Alou Cervera, Pedro 
ORCID: https://orcid.org/0000-0002-2985-1330, Oliver Ramírez, Jesús Angel ORCID: https://orcid.org/0000-0002-5286-5378, Cobos Márquez, José Antonio ORCID: https://orcid.org/0000-0003-4542-2656 and Wisniewski, Rafael
(2013).
Limits of the frequency response for the analysis of
ripple-based controllers.
In: "Applied Power Electronics Conference and Exposition (APEC), 2013 Twenty-Eighth Annual IEEE", 17/03/2013 - 21/03/2013, Long Beach (California, USA). ISBN 978-1-4673-4355-8/13. pp. 1702-1708.
Description
| Title: | Limits of the frequency response for the analysis of ripple-based controllers |
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| Author/s: |
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| Item Type: | Presentation at Congress or Conference (Article) |
| Event Title: | Applied Power Electronics Conference and Exposition (APEC), 2013 Twenty-Eighth Annual IEEE |
| Event Dates: | 17/03/2013 - 21/03/2013 |
| Event Location: | Long Beach (California, USA) |
| Title of Book: | Applied Power Electronics Conference and Exposition (APEC), 2013 Twenty-Eighth Annual IEEE |
| Date: | 2013 |
| ISBN: | 978-1-4673-4355-8/13 |
| Subjects: | |
| Faculty: | E.T.S.I. Industriales (UPM) |
| Department: | Automática, Ingeniería Electrónica e Informática Industrial [hasta 2014] |
| Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
Abstract
Advanced control techniques like V2, Vout hysteresis or V2Ic can strongly reduce the required output apacitance in PowerSoC converters. Techniques to analyze power converters based on the analysis of the frequency response are not suitable for ripple-based controllers that use fast-scale dynamics to control the power stage. This paper proves that the use of discrete modeling together with Floquet theory is a very powerful tool to model the system and derive stable region diagrams for sensitivity analysis. It is applied to V 2Ic control, validating experimentally that Floquet theory predicts accurately subharmonic oscillations. This method is applied to several ripplebased controllers, providing higher accuracy when it is compared with other techniques based on the frequency response. The paper experimentally validates the usefulness of the discrete modeling and the Floquet theory on a 5 MHz Buck converter with a V 2Ic control.
More information
| Item ID: | 29688 |
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| DC Identifier: | https://oa.upm.es/29688/ |
| OAI Identifier: | oai:oa.upm.es:29688 |
| Official URL: | http://ieeexplore.ieee.org/xpl/articleDetails.jsp?... |
| Deposited by: | Memoria Investigacion |
| Deposited on: | 12 May 2015 15:20 |
| Last Modified: | 10 Feb 2023 10:05 |
