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Sensorless Speed Control of Induction Motor using Current Compensation  

Oh, Sae-Gin (Division of Marine Engineering, Graduate School of Korea Maritime University)
Kim, Jong-Su (Research Institute of Maritime Industry of Korea Maritime University)
Kim, Sung-Hwan (Division of Mechatronics Engineering, of Korea Maritime University)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.27, no.4, 2003 , pp. 503-510 More about this Journal
Abstract
A new method of induction motor drive, which requires neither shaft encoder nor speed estimator, is presented. The proposed scheme is based on decreasing current gap between a numerical model and an actual motor. By supplying the identical instantaneous voltage to both model and motor in the direction of reducing the current difference. the rotor approaches to the model speed. that is. reference value. The indirect field orientation algorithm is employed for tracking the model currents. The performance of induction motor drives without speed sensor is generally characteristic of poorness at very low speed. However, in this system, it is possible to obtain good speed response in the extreme low speed range.
Keywords
sensorless speed control; current compensation; numerical model;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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