Direct torque control design and experimental evaluation for the brushless doubly fed machine

Izaskun Sarasola, Javier Poza, Miguel A. Rodriguez, Gonzalo Abad

Research output: Contribution to journalArticlepeer-review

93 Scopus citations

Abstract

In this paper, a direct torque control (DTC) strategy for the brushless doubly fed machine (BDFM) is presented. After analyzing the mathematical model of this machine, the voltage vectors look-up table of classical DTC techniques is derived. Then, the behavior of the machine is studied when it is controlled by the developed DTC technique, concluding that under some specific operation conditions, a BDFM could present a time interval where the torque and the flux can not be controlled simultaneously. In these cases, two different control solutions have been defined: "flux priority" and "torque priority". Finally, simulation and experimental results validate the effectiveness of the proposed control algorithms.

Original languageEnglish
Pages (from-to)1226-1234
Number of pages9
JournalEnergy Conversion and Management
Volume52
Issue number2
DOIs
StatePublished - Feb 2011
Externally publishedYes

Keywords

  • Brushless doubly fed machine
  • Control systems
  • Direct torque control
  • Variable speed generator
  • Wind energy generators

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