Comparison analysis of stator resistance estimation of three phase induction machine with air gap power and regression methods
Subject Area:Physical Sciences and Engineering
This paper proposes two online algorithms for estimating stator resistance of an induction motor without using rotor resistance. In this research, we use "air gap power" and "linear regression" methods to estimate resistance of stator in different speeds and torques. These methods are tested using simulation and experimental data from a commercial induction motor. Benefits and defaults of each method will be compared with the other method result. Obtained results of both methods show that estimations of stator resistance in low speeds have been well but air gap method has been presented more accurately rather than linear regression.