A transformerless D-STATCOM based on a multi-voltage cascade converter requiring no DC sources

@article{Sano2011ATD,
  title={A transformerless D-STATCOM based on a multi-voltage cascade converter requiring no DC sources},
  author={Kenichiro Sano and Masahiro Takasaki},
  journal={2011 IEEE Energy Conversion Congress and Exposition},
  year={2011},
  pages={3151-3158}
}
This paper deals with a cascaded multilevel converter which has multiple dc voltage values (multi-voltage cascade converter) for a 6.6-kV transformerless distribution static synchronous compensator (D-STATCOM). A control method is proposed to realize dc voltage regulation of series-connected three cells in the STATCOM operation, making it possible to remove dc sources from all H-bridge cells. The simplified configuration without the dc sources makes the STATCOM small and lightweight. A… CONTINUE READING
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