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Torque Ripple Reduction Method in a Sensorless Drive for the BLDC Motor

Title
Torque Ripple Reduction Method in a Sensorless Drive for the BLDC Motor
Author
권병일
Keywords
Brushless DC motor; commutation; sensorless control; torque ripple
Issue Date
2004-12
Publisher
대한전기학회
Citation
KIEE International Transactions on Electrical Machinery and Energy Conversion Systems, v. 4, No. 4, Page. 196 - 200
Abstract
This paper presents a method to reduce the commutation torque ripple in a position sensorless brushless DC motor drive. To compensate the commutation torque ripple considerably, the duration of commutation must be known. The proposed method measures the duration of commutation from the terminal voltage of the motor, calculates a PWM duty ratio using the measured commutation interval to suppress the commutation torque ripple, and applies it to the calculated PWM duty ratio only during the next commutation. Experimental results show that pulsating currents and vibrations are considerably reduced when the proposed method is applied to a position sensorless brushless DC motor drive for the air-conditioner compressor.
URI
http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE01280873&language=ko_KRhttp://repository.hanyang.ac.kr/handle/20.500.11754/110528
ISSN
1598-2602
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > ELECTRICAL ENGINEERING(전자공학부) > Articles
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