An Efficiency Improved Active Power Decoupling Circuit with Minimized Implementation Cost

Research output: Contribution to book/anthology/report/conference proceedingArticle in proceedingResearchpeer-review

4 Citations (Scopus)

Abstract

Active power decoupling techniques are promising solutions for capacitance reduction in single-phase AC/DC or DC/AC systems. This paper proposes a novel circuit topology which can realize the power decoupling function without adding additional active switches into the circuit. Also, the proposed topology does not require additional passive component, e.g. inductors or film capacitors for ripple energy storage because this task can be accomplished by the dc-link capacitors themselves, and therefore its implementation cost can be minimized. Another unique feature of the proposed topology is that the current stress of power semiconductors can be reduced as compared to a conventional single-phase converter under high load operation. Therefore, the conversion efficiency can be improved and this is impossible for other existing active power decoupling circuits. The operational principle of the proposed circuit is discussed, and both simulation and experimental results are presented to show the effectiveness of the proposed circuit concept.
Original languageEnglish
Title of host publicationProceedings of the 2014 International Power Electronics and Application Conference and Exposition (PEAC2014)
Number of pages6
PublisherIEEE Press
Publication dateNov 2014
Pages864-869
ISBN (Print)978-1-4799-6767-4
DOIs
Publication statusPublished - Nov 2014
EventIEEE International Power Electronics and Application Conference and Exposition (IEEE PEAC'14) - Shanghai, China
Duration: 5 Nov 20148 Nov 2014

Conference

ConferenceIEEE International Power Electronics and Application Conference and Exposition (IEEE PEAC'14)
Country/TerritoryChina
CityShanghai
Period05/11/201408/11/2014

Keywords

  • Active power decoupling
  • Capacitance reduction
  • current stress
  • Dc-link capacitor

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