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http://dx.doi.org/10.6109/jkiice.2012.16.11.2474

Zooming fuzzy logic controller for sensorless vector control of an induction motor in low speed region under 3Hz  

Han, Sang-Soo (가천대학교)
Choi, Sung-Horn (가천대학교)
Abstract
A sensorless vector control of an induction motor provides a good performance in the middle and high speed region. However, in the low speed region, it is very difficult to implement the sensorless vector controller because the feeding voltage measured by the motor is very low. In this paper, to improve the performance of a sensorless vector control of an induction motor in the low speed region under 3Hz, we proposed the fuzzy logic controller using the zooming algorithm. To verify the performance of the proposed controller, an experiment has been performed.
Keywords
sensorless vector control; induction motor; low speed region; fuzzy logic controller; zooming algorithm;
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