Estimación de parámetros de un motor trifásico de inducción a partir de mediciones en el arranque directo de corrientes transitorias del estator utilizando la herramienta de estimación de parámetros de Matlab/Simulink

Abstract

This work presents two methods to estimate the electrical parameters of the equivalent circuit of a 2-hp three-phase squirrel-cage induction motor using current and voltage measurements in a direct online starting. A three-phase balanced induction motor is considered. Measurements of the stator currents and voltages are required for the identification of induction motor model. In the first method, the IEEE Std. 112-2004 standard "IEEE Standard Test Procedure for Polyphase Induction Motors and Generators" is applied. The second method applies the Matlab/Simulink Parameter Estimation Toolbox in order to estimate the motor electrical parameters. Based on comparison between measured currents and voltages signals versus those obtained by simulation of the electrical model, the performance of each method is determined. The testing process was performed at the Electrical Machines Laboratory at the Escuela Politécnica Nacional (National Polytechnic School).