The use of linear parameter estimation techniques to determine the stator r
esistance, self-inductance of the stator winding, transient inductance, rot
or time constant, as well as the angular shaft speed of a three-phase induc
tion machine is investigated in this paper. In order to obtain results with
maximum accuracy, some specific procedures to reduce the effect of the ope
rating conditions on the quality of the estimates are investigated. Both co
mputer and experimental results are used to anchor the main conclusions iss
ued from this study.