Speed sensor-less rotor flux oriented control of a 3-phase induction motor drive using SVPWM

摘要

The three phase induction machine with high torque to inertia, power to ratio, small size, high speed and high mechanical stress motor is used in this paper. The novel speed sensor lees Field Oriented Control topology is applied to control this type of induction motor. Induction machine can provide better performance using rotor flux oriented control technique. A Neutral Point Clamped (NPC) inverter is used with a lead acid battery as a source to get rid of from the space constraints generating 48V DC supply. The NPC is used to feed three phase induction machine by converting DC supply from the battery to AC. In this paper space vector PWM (SVPWM) topology is employed to execute the inverter switching. The overall simulation is performed in MATLAB.