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An Improvement of Sensorless Driving Performance for Brushless DC Motor with Trapezoidal Back EMF  

우혁재 (순천대학교 정보통신공학부)
송명현 (순천대학교 정보통신공학부)
박규남 (순천대학교 정보통신공학부)
김경민 (여수대학교 전자통신 및 전기공학부)
정회범 (순천대학교 기계자동차공학부)
Publication Information
Journal of the Korea Institute of Information and Communication Engineering / v.6, no.4, 2002 , pp. 582-588 More about this Journal
Abstract
This paper presents a efficient sensorless driving strategy for brushless dc motor(BLDCM). By varying PWM switching frequency(4KHz, 6KHz, 8KHz) properly according to the rotating speed, the improvement of the efficiency and the operating characteristics through the wide speed are obtained.. The experimental results show that the proposed method can efficiently improve the sensorless driving performance for BLDCM with trapezoidal back emf.
Keywords
Sensorless Driving; BLDCM; Variable Switching Frequency; Trapezoidal Back EMF;
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  • Reference
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