Harmonic elimination by adaptive phase-shift optimization in interleaved converters

M.L.A. Caris, H. Huisman, J.L. Duarte

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

8 Citations (Scopus)
4 Downloads (Pure)

Abstract

Interleaving is a commonly used technique to reduce the output current ripple in parallel connected buck-stages. Harmonic cancellation is achieved by applying a phase-shift to the carrier waves of the pulse width modulator, resulting in a reduced output current ripple at a higher effective frequency. However, optimal interleaving is only achieved when switching cells are identical. When variations between switching cells are taken into account, subharmonic switching-frequency components will appear in the output current, resulting in a higher voltage ripple than designed for. In this paper an adaptive phase-shift control method is proposed which can solve the optimal phase-shift problem. Additionally, it will be shown that the phase-shift values can be determined by only measuring the output current. The proposed algorithm has also been verified on a experimental setup.
Original languageEnglish
Title of host publicationProceedings of the 2013 IEEE Energy Conversion Congress and Exposition (ECCE), 15-19 September 2013, Denver Colorado.
Place of PublicationDenver, Colorado
PublisherInstitute of Electrical and Electronics Engineers
Pages763-768
ISBN (Print)978-1-4799-0336-8
DOIs
Publication statusPublished - 2013
Event5th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2013) - "Colorado Convention Center", Denver, United States
Duration: 15 Sep 201319 Sep 2013
Conference number: 5
http://2015.ecceconferences.org/wp-content/uploads/2015/08/ecce13_program_book-FINAL.pdf

Conference

Conference5th Annual IEEE Energy Conversion Congress and Exposition (ECCE 2013)
Abbreviated titleECCE 2013
CountryUnited States
CityDenver
Period15/09/1319/09/13
Internet address

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