Resistances estimation with an extended kalman filter in the objective of real-time thermal monitoring of the induction machine

Estimation of both stator and rotor resistances are dealt with, in order to monitor the thermal behaviour of the induction machine in real time. For this, a reduced-order electrical model is presented and introduced in extended Kalman filters. An experimental set-up is described and resistance measurement difficulties are underlined. Experimental results and comparison of the different model extensions to meet accurate estimations are discussed.