• ISSN: 2349-6002
  • UGC Approved Journal No 47859

DIRECT TORQUE CONTROL OF MATRIX CONVERTER FED PMSM

  • Unique Paper ID: 143286
  • Volume: 2
  • Issue: 9
  • PageNo: 45-51
  • Abstract:
  • This paper proposes a direct torque control (DTC) scheme for a matrix-converter-fed PMSM drive system. DTC is a high performance motor control scheme with fast torque and flux responses. However, the main disadvantage of conventional DTC is electromagnetic torque ripple. Besides, the matrix converter is a single-stage ac-ac power conversion device without dc-link energy storage elements. Due to the properties of the matrix converter, the pseudo dc-link will provide with three different types of voltage: the high, middle, and low voltages. Therefore, based on space vector modulation generated by a matrix converter, there are three states on each space vector location. By suitably selecting switching pattern, the electromagnetic torque ripple of the motor is effectively reduced. Using this switching strategy, the advantages of the DTC schemes and the benefits of the matrix converters can be combined. As a result, a satisfactory servo drive can be achieved.

Cite This Article

  • ISSN: 2349-6002
  • Volume: 2
  • Issue: 9
  • PageNo: 45-51

DIRECT TORQUE CONTROL OF MATRIX CONVERTER FED PMSM

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