In this paper, a control scheme of a vector-controlled induction machine (IM) drives in overmodulation (OVM) range to maximize the voltage utilization of the voltage-source inverter (VSI) has been introduced. In OVM region, a modified voltage reference is produced for the space-vector pulse-width modulation (SVPWM), which can cause the motor current to be distorted, leading to the damage of the VSI control operation. |