Wide range input voltage converters are merely required in photovoltaic and wind energy conversion systems which have dynamic output voltage due to irradiance and wind speed fluctuations. This paper presents a comprehensive analysis and design approach of grid connected buck-boost inverter for wide input voltage application. Sizing of a LC output filter component is emphasized in this paper. It is important to size the filter properly to obtain a trade-off between output current ripple and reactive power supplied into grid when inverter is in stand-by mode. A graphical method is employed to determine filter parameters. The presented method is found to be straight forward and easy from practical point of view.

Original languageEnglish
Pages (from-to)15-28
Number of pages14
JournalASEAN Engineering Journal
Issue number1
Publication statusPublished - 2017


  • Buck-boost inverter
  • Filter sizing
  • Graphical approach


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