Generalized direct power control for grid connected multilevel converters

Sebastián Rivera, Samir Kouro, Patricio Cortés, Salvador Alepuz, Mariusz Malinowski, Bin Wu, José Rodríguez

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

11 Scopus citations

Abstract

This paper presents a generalized direct power control (DPC) scheme for grid connected multilevel converters. The proposed method extends the original DPC operating principle by considering only for selection the closest vectors to the present switching state. This approach requires the power derivatives for feedback, which can present numerical implementation problems in real time. Therefore a grid virtual flux based observer is proposed to overcome this issue. The proposed method is applicable to any multilevel converter topology of any number of levels. In this paper simulations results are presented for a 9 level cascaded H-bridge converter. The proposed solution enables DPC for multilevel converters used in medium voltage applications while improving overall power quality and efficiency of the system.

Original languageEnglish
Title of host publicationProceedings - ICIT 2010
Subtitle of host publicationIEEE-ICIT 2010 International Conference on Industrial Technology
Pages1351-1358
Number of pages8
DOIs
StatePublished - 2010
Externally publishedYes
EventIEEE-ICIT 2010 International Conference on Industrial Technology, ICIT 2010 - Vina del Mar, Chile
Duration: 14 Mar 201017 Mar 2010

Publication series

NameProceedings of the IEEE International Conference on Industrial Technology

Conference

ConferenceIEEE-ICIT 2010 International Conference on Industrial Technology, ICIT 2010
Country/TerritoryChile
CityVina del Mar
Period14/03/1017/03/10

Keywords

  • Direct power control
  • Grid connection
  • Multilevel converters

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