Investigation into the Control Methods to Reduce the DC-Link Capacitor Ripple Current in a Back-to-Back Converter

Zian Qin, Huai Wang, Frede Blaabjerg, Poh Chiang Loh

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

27 Citations (Scopus)
744 Downloads (Pure)

Abstract

Three-phase back-to-back converters have a wide range of applications (e.g. wind turbines) in which the reliability and cost-effectiveness are of great concern. Among other components and interconnections, DC-link capacitors are one of the weak links influenced by environmental stresses (e.g. ambient temperature, humidity, etc.) and operating stresses (e.g. voltage, ripple current). This paper serves to investigate the ways of reducing ripple current stresses of DC-link capacitors in back-toback converters. The outcome could benefit to achieve either an extended lifetime for a designed DC-link or a reduced DC-link size for fulfilling a specified lifetime target. The proposed control strategies have been demonstrated on a study case of a 1.5 kW converter prototype. The experimental verifications are in well agreement with the theoretical analyses.
Original languageEnglish
Title of host publicationProceedings of the 2014 IEEE Energy Conversion Congress and Exposition (ECCE)
Number of pages8
PublisherIEEE Press
Publication date18 Sept 2014
Pages203-210
ISBN (Print)9781479957774
ISBN (Electronic)9781479956982
DOIs
Publication statusPublished - 18 Sept 2014
Event2014 IEEE Energy Conversion Congress and Exposition (ECCE) - Pittsburgh, Pittsburgh, United States
Duration: 14 Sept 201418 Sept 2014

Conference

Conference2014 IEEE Energy Conversion Congress and Exposition (ECCE)
LocationPittsburgh
Country/TerritoryUnited States
CityPittsburgh
Period14/09/201418/09/2014

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