Analysis of System Interharmonics of VSI-Fed Small DC-Link Drive with Varying Power Load

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

Abstract

Small dc-link drive is a research focus in the past years, due to its compact size and improved reliability. However, the small dc-link drive with diode rectifier may suffer from resonance between the system input inductor and the dc-link capacitor, which will result in unacceptable grid current harmonic distortion. Various passive- and active-damping methods have been studied to mitigate the undesired oscillations in the grid current and dc-link voltage caused by the resonance. However, the above studies only focus on constant power load conditions. In this paper, the system performance on periodic varying power load conditions is analyzed. The harmonics and interharmonics at both sides of the dc-link stage are studied analytically. Simulation and experiment results are provided to support the analytical study.
Original languageEnglish
Title of host publicationProceedings of the 2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018
Number of pages8
PublisherIEEE Press
Publication dateSep 2018
Pages3347-3354
Article number8557550
ISBN (Print)978-1-4799-7313-2
ISBN (Electronic)978-1-4799-7312-5
DOIs
Publication statusPublished - Sep 2018
Event10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018 - Portland, United States
Duration: 23 Sep 201827 Sep 2018

Conference

Conference10th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2018
CountryUnited States
CityPortland
Period23/09/201827/09/2018
SponsorIEEE Industry Applications Society (IAS), IEEE Power Electronic Society (PELS)
SeriesIEEE Energy Conversion Congress and Exposition
ISSN2329-3721

Keywords

  • Interharmonics
  • Small dc-link
  • Varying power load

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