Title |
Vector Control of an Induction Motor for the Field Weakening Region Considering the Variation of Magnetizing Inductance |
Abstract |
In case of field weakening region, torque is directly affected by flux. In this region, the flux reference is decreased inversely proportional to the rotor speed. As the flux is decreased the magnetizing inductance is normally increased. The increased magnetizing inductance limited voltage for continuing current. In this paper, measuring g axis voltage in field weakening region, magnetizing inductance in flux calculating can be readjusted. Computer simulation and experiment results demonstrate the efficacy of the proposed method. Proposed algorithm is expected to the application of the adjustable drive system in the spinning and weaving field. |