Trade-offs in Sampled-data Control: a DC-DC Buck Converter Example

Aratrik Sarkar, Brent Wallace, Armando A. Rodriguez

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

DC-DC power converters are often used with closed-loop control in order to be robust to signal and parametric uncertainty. Most modern control systems implement the controller digitally because of implementation and redesign flexibility. Provided the switching frequency is sufficiently high, traditional digital control methods yield acceptable designs; however, a high switching frequency is associated with higher power loss. With a view to developing more efficient power converters in the future, this paper quantifies how much we can reduce the switching frequency and still obtain acceptable performance from traditional digital control design methods and provides an alternative (based on modern "lifting"techniques) when the switching frequency is so small that the traditional methods do not yield an acceptable controller.

Original languageEnglish (US)
Title of host publication2022 American Control Conference, ACC 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages3820-3825
Number of pages6
ISBN (Electronic)9781665451963
DOIs
StatePublished - 2022
Event2022 American Control Conference, ACC 2022 - Atlanta, United States
Duration: Jun 8 2022Jun 10 2022

Publication series

NameProceedings of the American Control Conference
Volume2022-June
ISSN (Print)0743-1619

Conference

Conference2022 American Control Conference, ACC 2022
Country/TerritoryUnited States
CityAtlanta
Period6/8/226/10/22

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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