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Sensorless Speed Control of Direct Current Motor using Current Error Compensation  

함형철 (한국해양대학교 대학원 기관시스템공학과)
오세진 (한국해양대학교 대학원 기관시스템공학과)
김종수 (한국해양대학교 해사산업연구소)
Publication Information
Journal of Advanced Marine Engineering and Technology / v.27, no.7, 2003 , pp. 930-936 More about this Journal
Abstract
A new method of direct current 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 performance of direct current motor drives without speed sensor is generally poor at very low speed. However, in this system, it is possible to obtain good speed performance in the low speed range.
Keywords
sensorless speed control; current error compensation; numerical model;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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