Abstract:
A modified approach, involving the addition of a low frequency boost voltage, is developed and adopted as an enhancement to the conventional closed loop fv speed control of a three-phase squirrel cage induction motor modeled in the stationary qd reference frame using six-step voltage source inverter waveform. The results obtained show a superior performance in the two basic mechanical characteristics: motor speed and electromechanical torque. The performance of this proposed scheme is presented in MATLAB/SIMULINK®.
