Predictive control of ac-ac modular multilevel converters

Marcelo A. Perez, Jose Rodriguez, Esteban J. Fuentes, Felix Kammerer

Research output: Contribution to journalArticlepeer-review

183 Citations (Scopus)

Abstract

Multilevel converters can reach medium-voltage operation increasing the efficiency of high-power applications. Among the existing multilevel converter topologies, the modular multilevel converter (MMC) provides the advantages of high modularity, availability, and high power quality. Moreover, the main advantage compared to cascaded multilevel converters is the lack of an input transformer which results in a reduction of cooling requirements, size, and cost. One of the drawbacks of this topology when used as an ac-ac converter is the input and output frequency components in the control loop, resulting in a more complex controller design. In this paper, a single-phase ac-ac MMC predictive control approach is proposed. The controller minimizes the input, output, and circulating current errors and balances the dc voltages. Experimental results show the performance of the proposed predictive control scheme.

Original languageEnglish
Article number5875882
Pages (from-to)2832-2839
Number of pages8
JournalIEEE Transactions on Industrial Electronics
Volume59
Issue number7
DOIs
Publication statusPublished - Jul 2012

Keywords

  • Modular multilevel converter (MMC)
  • power electronics
  • predictive control

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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