Space Vector Pulse Width Modulation Based Induction Motor with V/F Control

In adjustable speed drive system speed control techniques are generally essential. Therefore in order achieve this it requires variable voltage supply and frequency which is invariably obtained from a three-phase Voltage source inverter. Even though there are numbers of pulse width modulations scheme is used to obtain variable frequency and voltage supply from an inverter. It is less used than the space vector pulse width modulation. Because the SVPWM has several merits such as better dc bus utilization, easier digital realization over the other Pulse width modulation methods. In the space vector pulse modulation method with voltage / frequency control of induction motor drive is widely used in medium performance drive system. It is due to its characteristics like good power factor, extremely rugged and high efficiency. This scheme leads to be able to adjust the speed of the motor by control the frequency and amplitude of the stator voltage, the ratio of stator voltage to frequency should be kept constant. In this paper the voltage source inverter type space vector pulse width modulation model design and implementation has been done through MATLAB / SIMULINK software for the speed control of induction motor. In addition to these parameters like stator current, rotor current, torque and speed are obtained graphically.