ABSTRACT

Eddi Limpah.  The Identification of Three-Phase Induction Motor’s Rotor Resistance using Slemon’s T (Gamma) Circuit Model for High Performance Control of Induction Motor (supervised by Muhammad Arief and Salama Manjang).

This research project investigates the accuracy of Slemon’s T (Gamma) Circuit Model in determining a three-phase induction motor’s rotor resistance. Four rotor equations are derived from the equivalent circuits to verify the results from the laboratory tests. .  

The result of the calculation using Model 1 matches the result of the laboratory test for external resistance Rx = 0 Ohm. The rotor resistance Rr is determined to be 2.1 Ohm. For varying Rx from 0.75 Ohm to 4.75 Ohm, model 1 also gives the same result as the laboratory test, i.e. Rr = 3.1 Ohm. Model 2 produces different results, ……………………………………………………..
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In all cases, Model 3 and Model 4 are unstable. It is concluded that Model 1 is the most accurate among the four models and the most recommended to be applied in the design and analysis of a high performance control of induction motors. 

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