Model Predictive Control for a Dual-Active Bridge Inverter with a Floating Bridge

Shajjad Chowdhury, Patrick W. Wheeler, Chris Gerada, Chintan Patel

Research output: Journal PublicationArticlepeer-review

48 Citations (Scopus)

Abstract

This paper presents a model predictive control technique applied to a dual-active bridge inverter where one of the bridges is floating. The proposed floating bridge topology eliminates the need for isolation transformer in a dual inverter system and therefore reduces the size, weight, and losses in the system. To achieve multilevel output voltage waveforms, the floating inverter dc-link capacitor is charged to the half of the main dc-link voltage. A finite-set model predictive control technique is used to control the load current of the converter as well as the floating capacitor voltage. Model predictive control does not require any switching sequence design or complex switching time calculations as used for space vector modulation; thus, the technique has some advantages in this application. A detailed analysis of the converter as well as the predictive control strategy is given in this paper. Simulation and experimental results to validate the approach are also presented.

Original languageEnglish
Article number7466846
Pages (from-to)5558-5568
Number of pages11
JournalIEEE Transactions on Industrial Electronics
Volume63
Issue number9
DOIs
Publication statusPublished - Sep 2016
Externally publishedYes

Keywords

  • Dual inverter
  • floating bridge
  • model predictive control (MPC)
  • open-end winding induction motor

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electrical and Electronic Engineering

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