Title :
Electro-mechanical analysis of the audible noise of inverter-fed squirrel-cage induction motor
Author :
Belmans, R. ; Verdyck, D. ; Geysen, W. ; Findlay, R.D.
Author_Institution :
Lab. EMA, Katholieke Univ., Leuven, Belgium
Abstract :
The audible noise emitted by a three-phase squirrel-cage induction motor fed by a frequency inverter is determined by the electromagnetic and mechanical behavior of the components of the drive. A computerized analysis method is described which uses theoretical as well as experimental data for predicting the audible noise spectrum components. Starting from the inverter voltage and the motor data, the electromagnetic forces are predicted and analyzed. The mechanical natural frequencies are considered, either in a theoretical (finite-element calculation) or in an experimental (modal analysis) methodology, in order to predict the vibrational behavior of the machine.<>
Keywords :
acoustic noise measurement; computer aided analysis; finite element analysis; power engineering computing; squirrel cage motors; EM behaviour; audible noise; computerized analysis method; drive; electromagnetic forces; electromechanical analysis; finite-element calculation; frequency inverter; inverter voltage; inverter-fed squirrel-cage induction motor; mechanical natural frequencies; modal analysis; three-phase; vibrational behavior; Acoustic noise; Electromagnetic analysis; Electromagnetic forces; Electromagnetic induction; Finite element methods; Frequency; Induction motors; Inverters; Modal analysis; Voltage;
Conference_Titel :
Industry Applications Society Annual Meeting, 1989., Conference Record of the 1989 IEEE
Conference_Location :
San Diego, CA, USA
DOI :
10.1109/IAS.1989.96658
