Detail výsledku
AC Induction Motor Stator Resistance Estimation Algorithm
Václavek Pavel, prof. Ing., Ph.D., UAMT (FEKT)
Stator resistance identification algorithm for AC induction motor is presented in this paper. It does not
require additional external excitation. The algorithm is intended to capture slow variations of stator resistance
which are given by the changes in stator windings temperature. Steady state operation with harmonic voltages and
currents are located during the operation of the motor and the stator resistance is determined from RMS values of
the voltage, current and from actual active power. Simulation experiments have proved the theoretical expectations.
The algorithm is not computationally intensive which makes it suitable for real time implementation in reasonable
hardware. The experimental results confirm that the proposed method gives acceptable results on a real motor. The
disadvantage is the dependency of the stator resistance estimate on the level of magnetic flux excitation. The off
line measurement of stator inductance on excitation current is proposed to solve this problem.
AC induction motor, identification, stator resistance, sensorless control
@inproceedings{BUT28054,
author="Petr {Blaha} and Pavel {Václavek}",
title="AC Induction Motor Stator Resistance Estimation Algorithm",
booktitle="2007 WSEAS International Conferences, Venice, Italy, November 21-24, 2007",
year="2007",
pages="86--91",
publisher="WSEAS International Conferences",
address="Venice, Italy",
isbn="978-960-6766-13-8"
}