Title :
A Study on Acoustic Noise Reduction in Brushless DC Interior Permanent Magnet Motor with Concentrated Windings
Author :
Lee, Sang-Ho ; Hong, Jung-Pyo ; Lee, Ji-Young ; Kim, Young-Kyoun ; Choi, Jae-Young
Author_Institution :
Dept. of Electr. Eng., Changwon Nat. Univ.
Abstract :
A study on magnetic force is more important than other factors, because acoustic noise of motors is mainly affected by vibration of structure. Especially, harmonics of normal force are associated with resonant frequency of structure. Therefore, although cogging torque and torque fluctuation influenced by tangential force are important factors in output characteristic, the normal force is more important for the acoustic noise. This paper deals with magnetic design to reduce the harmonics of normal force by using response surface methodology (RSM), and then the relationship with acoustic noise, cogging torque, torque ripple, and the harmonics of normal force is illustrated by experiment and simulation
Keywords :
acoustic noise; brushless DC motors; magnetic forces; permanent magnet motors; response surface methodology; torque; vibrations; RSM; acoustic noise reduction; brushless DC interior permanent magnet motor; cogging torque; concentrated windings; magnetic force; resonant frequency; response surface methodology; structure vibration; tangential force; torque fluctuation; torque ripple; Acoustic noise; Fluctuations; Forging; Frequency; Magnetic flux; Noise measurement; Notice of Violation; Permanent magnet motors; Prototypes; Torque;
Conference_Titel :
Electromagnetic Field Computation, 2006 12th Biennial IEEE Conference on
Conference_Location :
Miami, FL
Print_ISBN :
1-4244-0320-0
DOI :
10.1109/CEFC-06.2006.1632867