Maximum Torque Production in Rotor Field Oriented Control of an Induction Motor at Field Weakening

This paper presents a highly dynamic rotor flux- oriented control system of an induction motor in the field weakening region. The control system guarantees maximum torque production taking into account voltage and current limits. The approach permits operation without using a speed sensor. The system is investigated by simulation in real time and experimentally using a fixed point microcontroller.

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