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Analysis and reduction of acoustic noise from a brushless DC drive
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UNSPECIFIED (2000) Analysis and reduction of acoustic noise from a brushless DC drive. In: Annual Meeting of the IEEE-Industry-Applications-Society, PHOENIX, AZ, OCT 03-07, 1999. Published in: IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS, 36 (3). pp. 772-777. ISSN 0093-9994.
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Abstract
It has been found that stator excitation in brushless de drives can excite mechanical resonances in the motor and, thus, produce acoustic noise in a similar way to switched reluctance drives, A technique has been developed to alter the commutation pattern of a brushless de motor to avoid exciting and reinforcing these mechanical resonances producing a significant reduction in pure tone acoustic noise which is emitted during mechanical resonance, The origin of the vibration and acoustic noise is explained and the theory of discrete frequency noise reduction described in this paper. The method proposed for quieter control of the brushless de motor could be achieved at a very low cost.
Item Type: | Conference Item (UNSPECIFIED) | ||||
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Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering |
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Journal or Publication Title: | IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | ||||
Publisher: | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC | ||||
ISSN: | 0093-9994 | ||||
Official Date: | May 2000 | ||||
Dates: |
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Volume: | 36 | ||||
Number: | 3 | ||||
Number of Pages: | 6 | ||||
Page Range: | pp. 772-777 | ||||
Publication Status: | Published | ||||
Title of Event: | Annual Meeting of the IEEE-Industry-Applications-Society | ||||
Location of Event: | PHOENIX, AZ | ||||
Date(s) of Event: | OCT 03-07, 1999 |
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