Title :
Random modulation in inverters feeding induction motors
Author :
Doval, J. ; Nogueiras, A. ; Eguizabal, L. ; Penalver, C.M.
Author_Institution :
Dept. de Tecnologia Electron., Vigo Univ., Spain
Abstract :
This paper proposes a random pulse width modulation scheme, where the frequency of the triangular waveform is generated in a random way, for decreasing the acoustic noise of an induction motor. Two different strategies have been implemented: generation of a triangular waveform with randomized frequency for each fixed subcycle and for each random subcycle of the output frequency
Keywords :
PWM invertors; acoustic noise; induction motor drives; machine control; noise abatement; acoustic noise reduction; fixed subcycle; induction motors; inverters; output frequency; random pulse width modulation; random subcycle; randomized frequency; triangular waveform frequency generation; AC motors; Acoustic noise; Acoustic pulses; Digital signal processing; Frequency; Induction generators; Induction motors; Pulse width modulation; Pulse width modulation inverters; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 1997. PESC '97 Record., 28th Annual IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-3840-5
DOI :
10.1109/PESC.1997.616783
