Resonance Damping Techniques for Grid-Connected Voltage Source Converters with LCL filters – A Review

Chi Zhang, Tomislav Dragicevic, Juan Carlos Vasquez, Josep M. Guerrero

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

31 Citations (Scopus)
1879 Downloads (Pure)

Abstract

LCL filters play an important role in grid-connected converters when trying to reduce switching-frequency ripple currents injected into the grid. Besides, their small size and low cost make them attractive for many practical applications. However, the LCL filter is a third-order system, which presents a resonance peak frequency. Oscillation will occur in the control loop in high frequency ranges, especially in current loop in double-loops controlled converters. In order to solve this, many strategies have been proposed to damp resonance, including passive and active methods. This paper makes a review of these methods.
Original languageEnglish
Title of host publicationProceedings of the 2014 IEEE International Energy Conference (ENERGYCON)
Number of pages8
PublisherIEEE Press
Publication dateMay 2014
Pages169-176
ISBN (Print)978-1-4799-2449-3
DOIs
Publication statusPublished - May 2014
Event2014 IEEE International Energy Conference (ENERGYCON) - Dubrovnik, Croatia
Duration: 13 May 201416 May 2014

Conference

Conference2014 IEEE International Energy Conference (ENERGYCON)
CountryCroatia
CityDubrovnik
Period13/05/201416/05/2014
SeriesI E E E International Energy Conference. ENERGYCON proceedings

Keywords

  • LCL filter
  • Active damp methods
  • Passive damp method
  • Grid-connected inverter

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