NDLI: Noise reduction for brushless DC motor-sensorless control analysis and back-EMF shape modification

Content Provider	IEEE Xplore Digital Library
Author	Perriard, Y. Koechli, C. Cardoletti, L.
Copyright Year	2002
Description	Author affiliation: Integrated Actuators Lab., Swiss Fed. Inst. of Technol., Lausanne, Switzerland (Perriard, Y.; Koechli, C.; Cardoletti, L.)
Abstract	Brushless DC motors are normally built with PM mounted on the rotor, which create the necessary back EMF voltage to produce mechanical power. The shape of this back-EMF voltage is very important in determining the phase voltage supply shape. The new generation of electronic drives uses sinusoidal shape current in order to suppress the harmonic. This paper describes a comparison made on a motor for pump application, with a sine wave back-EMF, and driven with a 120, 125 degree or sine wave control mode. The results show the differences between these modes, when using a sensorless technique to avoid the sensors. In order to complete the analysis, another possibility to decrease the noise is to modify the back-EMF shape. This reduces all the torque harmonics. A method is proposed with only one parameter modification. This method can be applied to a large range of applications.
Sponsorship	IEEE ice SICE Univ. Sevilla
Starting Page	1038
Ending Page	1043
File Size	320084
Page Count	6
File Format	PDF
ISBN	0780374746
DOI	10.1109/IECON.2002.1185415
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-11-05
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Noise reduction Brushless DC motors Sensorless control Shape control DC motors Consumer electronics Vibrations Mechanical sensors Rotors Voltage
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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