DEVELOPMENT AND SIMULATION OF A SINUSOIDAL PULSE WIDTH MODULATION-BASED CONTROL SCHEME FOR IMPROVED EFFICIENCY AND TORQUE PRODUCTION IN SINGLE PHASE INDUCTION MACHINES

📄 Project Abstract

This study developedmethods to improve the efficiency and torque production of the single phase induction machine using a sinusoidal pulse width modulation (SPWM) control scheme. This research targets the capacitor-run single phase induction motor(CRSPIM) which is a large consumer of domestic and industrial power supply with the goal of improving its operation at light load conditions.This motor suffers fromlow efficiency when operating under non-rated conditions,leading to wastage of significant amount of electric power since rated voltage is applied fully across its terminals and the flux in the machine operates approximately at rated value regardless of the applied load on the machine. Moreover, during starting time and at steady state, the motor exhibits significant torque pulsations which gives rise to noise and vibration in the machine. In efforts to address these problems, a performance improvement scheme using a pulse width modulated single phase inverter and a PID controller w...