Improved Modified DTC-SVM Methods for Increasing the Overload-capability of Permanent Magnet Synchronous Motor Servo- and Robot Drives – Part 1

  • Tibor Vajsz Department of Electric Power Engineering, Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, H-1521 Budapest, P.O.B. 91, Hungary
  • László Számel Department of Electric Power Engineering, Faculty of Electrical Engineering and Informatics, Budapest University of Technology and Economics, H-1521 Budapest, P.O.B. 91, Hungary

Abstract

Direct torque control with space vector modulation (DTC-SVM) is one of the most popular methods in the case of permanent magnet synchronous motor drives due to its excellent torque-control capabilities. This method facilitates a very high torque-control dynamic performance which is an especially important requirement in the field of servo- and robotic applications, thus making DTC-SVM a natural choice in these cases. In this article a novel Improved Modified DTC-SVM (IMDTC-SVM) method is presented and it is proven that this method has a very high overload-capability and is stable during overload-conditions, while the torque-control dynamics and the torque-ripple generated are practically identical with those of the classical DTC-SVM and the MDTC-SVM.

Keywords: permanent magnet synchronous motor, direct torque control, space vector modulation, servo drive, robot drive, frequency converter, electric drive
Published online
2018-05-25
How to Cite
Vajsz, T. and Számel, L. (2018) “Improved Modified DTC-SVM Methods for Increasing the Overload-capability of Permanent Magnet Synchronous Motor Servo- and Robot Drives – Part 1”, Periodica Polytechnica Electrical Engineering and Computer Science, 62(3), pp. 65-73. doi: https://doi.org/10.3311/PPee.11744.
Section
Articles