Field Oriented Control of Permanent Magnet Synchronous Motor Suja R.*, Dr. Mary P. Melba**, Dr. Karuvelem P. Subha*** *Department of Electrical and Electronics Engineering, PET Engineering College, Vallioor, India **Department of Electrical and Electronics Engineering, V V College of Engineering, Thisayanvillai, India ***Department of Electrical and Electronics Engineering, Government College of Engineering, Tirunelveli, India Online published on 9 November, 2016. Abstract A Field Oriented Control is a vector control in which three phase AC motors currents are identified as two orthogonal components. The two orthogonal components are flux and torque. FOC is used to control AC synchronous motors. At the same time, a Hysteresis and PWM controller can be implemented to control the inverter currents. Hysteresis current control is done by comparing current error with a fixed tolerance level for switching signals. Pulse-width modulation control is a most popular one in which a fixed dc input voltage is given to the inverter and a controlled ac output voltage is obtained by adjusting the on and off periods of the inverter components. In this study, simulation of hysteresis and PWM controlled PMSM is compared. Finally the results show that torque ripples are reduced. Top Keywords FOC, Hysteresis, PI controller, PMSM and PWM. Top |