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http://dx.doi.org/10.5916/jkosme.2012.36.6.830

Sensorless Speed Control of Induction Motor by Direct Torque Control with Numerical Model  

Yoon, Kyoung-Kuk (Research institute of SEANET)
Kim, Sung-Hwan (Division of Marine System Engineering, Korea Maritime University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.36, no.6, 2012 , pp. 830-836 More about this Journal
Abstract
Various control algorithms have been proposed for the speed-sensorless control for an induction motor. These control schemes are mainly based on the speed feedback with the flux and speed estimations. This paper proposes another method for the speed-sensorless control for an induction motor. The proposed scheme is based on the torque and flux compensation without speed estimations, in which the same controlled stator voltage is applied to both the induction motor and the numerical model so that the differences between torques and fluxes of the model and the induction motor may be compelled to give access to zero. The results of experiment show the effectiveness of the scheme.
Keywords
Numerical model; induction motor; direct torque control; speed-sensorless control;
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