Title :
Speed-change (2:1) induction motors driven by modulated supply voltages
Author :
Shepherd, W. ; Munoz, A.
Author_Institution :
University of Bradford, School of Electrical & Electronic Engineering, Bradford, UK
fDate :
3/1/1975 12:00:00 AM
Abstract :
An approach to the problem of frequency conversion based on amplitude modulation of the supply voltage waveform is found to be applicable in the speed control of induction motors. A 3-phase system, singly modulated, was used to control the stator voltage and frequency of a cage motor, and halfspeed operation was obtained for a wide range of torques, including no load.
Keywords :
amplitude modulation; induction motors; velocity control; amplitude modulation; driven by modulated supply voltages; frequency conversion; frequency of cage motor; half speed operation; singly modulated three phase system; speed change induction motor; speed control; stator voltage; supply voltage waveform; torques;
Journal_Title :
Electrical Engineers, Proceedings of the Institution of
DOI :
10.1049/piee.1975.0075
