Variable Voltage Control of Three-Phase Induction Motor for Energy Saving

Abstract

Energy saving is considered one of the important factors for industrial and commercial applications. Induction motors are the mostly preferred motor in the industry due to their reliability, robustness, price and rugged construction. The largest percentage of consumed energy in the industrial section is consumed by induction motors. So, Energy conservation in induction motor drive leads to reduction in power consumption and electricity cost. This paper studies an energy saving technique for squirrel cage induction motor. The energy saving is achieved by controlling the voltage applied to the stator winding using the three phase AC voltage controller. The simulation verifications were performed using MATLAB/Simulink. The results show that the proposed scheme gives rise to considerable energy savings.