Result Details
Online Stator Resistance Identification of an AC Induction Motor in Field Oriented Control Scheme
Václavek Pavel, prof. Ing., Ph.D., CAMAT (FEEC)
The aim of this paper is to present the algorithm for stator resistance identification. This algorithm operates online and requires no external excitation. The identification can be launched when the voltages and currents are harmonic, i.e. the motor is in steady state. This partially limits the employment of proposed algorithm for drives which are designed to run mostly in steady state, it means for the applications where the load changes mostly slowly. The method is based on presumption that the inductances are during operation of vector control algorithm constant when the flux level is kept constant. Both, the stator and rotor resistances are varying with time due to changes in temperature. These changes are very slow but they can be high. Simulation experiments prove 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.
AC induction motor, stator resistance, identification, on-line
@inproceedings{BUT24336,
author="Petr {Blaha} and Pavel {Václavek}",
title="Online Stator Resistance Identification of an AC Induction Motor in Field Oriented Control Scheme",
booktitle="The 2006 International Conference on Electrical Machines and Systems",
year="2006",
pages="6",
publisher="Nagasaki University",
address="Nagasaki, Japan"
}