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MINOTTI, C. (2008). Speed Fuzzy Estimator for Three-Phase Induction Motors Using Sensorless Approach. Dissertation (Master’s Degree) – Escola de Engenharia de Sao Carlos, Universidade de Sao Paulo, 2008. The use of sensorless technologies is an increasing tendency on industrial drives for electrical machines. The estimation of electrical and mechanical parameters involved with the electric machine control is used very frequently in order to avoid measurement of all variables from this process. The cost reduction may also be considered in industrial drives, besides the increasing robustness of the system, as advantages of the use of sensorless technologies. This work proposes the use of fuzzy logic to estimate the speed in three-phase induction motors. Simulation results are presented to validate the proposed approach and comparative analyses with other intelligent techniques are also outlined.

Estimador fuzzy de velocidade para motores de indução trifásicos usando abordagem sensorless