Title :
Current harmonics and acoustic noise in AC adjustable speed drives
Author :
Wallace, Alan K. ; Spée, Roné ; Martin, Larry G.
Author_Institution :
Dept. of Electr. & Comput. Eng., Oregon State Univ., Corvallis, OR, USA
Abstract :
The major source of noise in an ASD (adjustable-speed drive) is the excitation of the motor by nonsinusoidal currents. For load characteristics that simulate the performance required for fans and compressors, ASDs based on induction motors, permanent-magnet motors, and switched reluctance motors have been examined for correlation between current and acoustic noise. The effects that the specific types of noise produced by drives has on human subjects is examined with regard to temporary and permanent hearing-threshold shifts.<>
Keywords :
acoustic noise; harmonics; induction motors; permanent magnet motors; reluctance motors; variable speed drives; AC adjustable speed drives; acoustic noise; current harmonics; excitation; induction motors; load characteristics; nonsinusoidal currents; permanent hearing-threshold shifts; permanent-magnet motors; switched reluctance motors; Acoustic noise; Compressors; Fans; Humans; Induction motors; Permanent magnet motors; Reluctance motors; Variable speed drives;
Conference_Titel :
Industry Applications Society Annual Meeting, 1988., Conference Record of the 1988 IEEE
Conference_Location :
Pittsburgh, PA, USA
DOI :
10.1109/IAS.1988.25104
