Sound power radiated from an inverter driven induction motor II: Numerical analysis

Author

Wang, C. ; Lai, J.C.S. ; Astfalck, A.

Author_Institution

Acoust. & Vibration Unit, Univ. of New South Wales, Canberra, ACT, Australia

Volume

151

Issue

3

fYear

2004

fDate

5/8/2004 12:00:00 AM

Firstpage

341

Lastpage

348

Abstract

The numerical simulations for predicting the sound power of electromagnetic origin from an inverter driven induction motor are described. Three numerical models are developed: a 2D electromagnetic force model using the finite-element method (FEM), a 3D FEM structural model, and a 3D acoustic model based on the boundary-element method (BEM). The validation of the FEM structural model and the BEM acoustic model is discussed. The sound power as well as the sound pressure field produced by the motor driven under various conditions is analysed. Results show that FEM and BEM can be effectively employed to analyse the vibro-acoustic behaviour of an inverter-driven induction motor.

Keywords

PWM invertors; acoustic intensity measurement; acoustic noise; boundary-elements methods; electromagnetic forces; finite element analysis; induction motors; 2D electromagnetic force model; 3D FEM structural model; 3D acoustic model; BEM; PWM inverter; acoustic noise; boundary-element method; electromagnetic sound power; finite-element method; inverter driven induction motor; numerical analysis; sound pressure field; vibro-acoustic behaviour;

fLanguage

English

Journal_Title

Electric Power Applications, IEE Proceedings -

Publisher

iet

ISSN

1350-2352

Type

jour

DOI

10.1049/ip-epa:20040120

Filename

1290926