Original scientific paper

https://doi.org/10.7305/automatika.54-2.173

Improved Algorithms of Direct Torque Control Method

Andrzej Sikorski ; Depertment of Power Electronics and Electrical Drivers, Bialystok University of Technology, 45D Wiejska St., 15-351 Bialystok, Poland
Marek Korzeniewski orcid.org/0000-0002-9282-5063 ; Depertment of Power Electronics and Electrical Drivers, Bialystok University of Technology, 45D Wiejska St., 15-351 Bialystok, Poland

Abstract

In the paper a new way of DTC control method analysis to explain flux and current distortion at a low speed of motor operation is discussed. As a result, a new DTC-_ algorithm is proposed. It is important that the DTC-_algorithm uses the same switching table as the DTC method. The modified DTC algorithms are free from the disadvantages of the conventional DTC method i.e. hexagonal flux and strongly deformed current at a low speed range. The dynamical properties of the new algorithms are similar to the conventional DTC method. The correctness of the proposed methods has been confirmed by laboratory investigations.

Keywords

Direct torque control (DTC); Induction motor drives; Variable-speed drives

Hrčak ID:

103415

URI

https://hrcak.srce.hr/103415

Publication date:

2.5.2013.

Article data in other languages: croatian

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