• DocumentCode
    268149
  • Title

    Analysis of the Passive Damping Losses in LCL-Filter-Based Grid Converters

  • Author

    Peña-Alzola, R. ; Liserre, Marco ; Blaabjerg, Frede ; Sebastián, R. ; Dannehl, Jorg ; Fuchs, Friedrich Wilhelm

  • Author_Institution
    Dept. of Energy Technol., Aalborg Univ., Aalborg East, Denmark
  • Volume
    28
  • Issue
    6
  • fYear
    2013
  • fDate
    Jun-13
  • Firstpage
    2642
  • Lastpage
    2646
  • Abstract
    Passive damping is the most adopted method to guarantee the stability of LCL-filter-based grid converters. The method is simple and, if the switching and sampling frequencies are sufficiently high, the damping losses are negligible. This letter proposes the tuning of different passive damping methods and an analytical estimation of the damping losses allowing the choice of the minimum resistor value resulting in a stable current control and not compromising the LCL-filter effectiveness. Stability, including variations in the grid inductance, is studied through root locus analysis in the z-plane. The analysis is validated both with simulation and with experiments.
  • Keywords
    passive filters; power filters; sampling methods; LCL-filter-based grid converters; adopted method; minimum resistor value; passive damping losses; sampling frequencies; stable current control; switching frequencies; Capacitors; Damping; Harmonic analysis; Power harmonic filters; Power system stability; Resistors; Stability analysis; LCL-filter; passive damping; stability; voltage-source converter;
  • fLanguage
    English
  • Journal_Title
    Power Electronics, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0885-8993
  • Type

    jour

  • DOI
    10.1109/TPEL.2012.2222931
  • Filename
    6324450
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=268149