Linear parameter estimation for induction machines considering the operating conditions

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.