SPEED CONTROL OF 3 PHASE INDUCTION MOTOR USING IGBT BASED DIODE CLAMPED MULTILEVEL PWM INVERTER
Using 3 level diode clamped multilevel PWM inverter- IGBT based power circuit, dsp based controller with V/f control, High speed opto isolator with 0.5 hp/230V/1440 rpm squirrelcage induction motor and mechanical loading arrangement.