Sensorless speed tracking of induction motor with unknown torque based on maximum power transfer
Resource
IEEE Transactions on Industrial Electronics 49 (4): 911-924
Journal
IEEE Transactions on Industrial Electronics
Journal Volume
49
Journal Issue
4
Pages
911-924
Date Issued
2002
Author(s)
Abstract
In this paper, the authors first derive the maximum power transfer theorem for an induction motor. Then, a nonlinear indirect adaptive sensorless speed tracking controller for the motor with the maximum power transfer is proposed. In this controller, only the stator currents are assumed to be measurable. The rotor flux and speed observers are designed to relax the need of flux and speed measurement. In addition, the rotor resistance estimator is also designed to cope with the problem of the fluctuation of rotor resistance with temperature. Stability analysis based on Lyapunov theory is also performed to guarantee that the controller design here is stable. Finally, the computer simulations and experiments are conducted to demonstrate the satisfactory tracking performance of the authors' design subject to maximum power transfer.
SDGs
Type
journal article