Passive Reactor Compensated Cascaded H-Bridge Multilevel LC-StatCom

Glen Farivar, Christopher David Townsend, Branislav Hredzak, Josep Pou, Vassilios Agelidis

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Abstract

The cascaded H-bridge (CHB) low-capacitance StatCom (LC-StatCom) has a limited operating area in the inductive region compared to a conventional StatCom's V–I characteristic. This limitation for operation in the inductive region is considered to be the biggest disadvantage of CHB LC-StatCom. In this paper, the effect of adding parallel and series reactors on the LC-StatCom system's V–I characteristic is analyzed. Then, a new configuration, which fully compensates for the lost operating area of the LC-StatCom, is introduced. A scaled down single-phase seven-level laboratory prototype is used to confirm practicability of the proposed system.
Original languageEnglish
JournalI E E E Transactions on Power Electronics
Volume32
Issue number11
Pages (from-to)8338 - 8348
ISSN0885-8993
DOIs
Publication statusPublished - 2017

Keywords

  • Capacitors
  • Automatic voltage control
  • Inductors
  • Control systems
  • Capacitance
  • Voltage measurement
  • Cascaded H-bridge
  • low-capacitance (LC)-StatCom
  • reactive power compensation
  • thin dc capacitor

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