Model predictive control of cascaded H-bridge multilevel inverters

P. Cortés*, A. Wilson, S. Kouro, J. Rodríguez, H. Abu-Rub

*Corresponding author for this work

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

10 Citations (Scopus)

Abstract

This paper presents a Model Predictive Current Control strategy for a multilevel cascaded inverter. A simple discrete model is used to predict the behavior of the system for each possible voltage vector generated by the inverter. The voltage vector that minimizes a cost function is selected and applied during a whole sampling interval. The cost function measures the load current error. Due to the large number of voltage vectors, voltage levels per phase and switching states in a multilevel cascaded inverter, high amount of calculations is needed in order to make predictions. This makes difficult the implementation of this control strategy in a standard control platform. A modified control strategy that considerably reduces the number of calculations is proposed and validated with simulation results using a Cascaded H-Bridge multilevel inverter.

Original languageEnglish
Title of host publication2009 13th European Conference on Power Electronics and Applications, EPE '09
Publication statusPublished - 2009
Externally publishedYes
Event2009 13th European Conference on Power Electronics and Applications, EPE '09 - Barcelona, Spain
Duration: 8 Sept 200910 Sept 2009

Publication series

Name2009 13th European Conference on Power Electronics and Applications, EPE '09

Conference

Conference2009 13th European Conference on Power Electronics and Applications, EPE '09
Country/TerritorySpain
CityBarcelona
Period8/09/0910/09/09

Keywords

  • Converter control
  • Multilevel converters
  • Non-linear control
  • Voltage source inverters (VSI)

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