Modeling Methods of Three Phase Induction Motor

This paper presents the qd and voltage-behind reactance model of three phase induction motor. The accurate behavioral modeling of induction motor helps in designing controller for the machine and is also useful in detection of faults in machines. The rotor subsystem is expressed in qd coordinates and the stator subsystem is expressed in abc phase coordinates. Computer studies of an induction motor for Voltage-behind-reactance model demonstrate the improvement in computational efficiency as compared with the qd or PD model. In this paper Voltage-behind-reactance model is developed in stationary reference frame using MATLAB-SIMULINK platform. Index terms Coupled-circuit(CC) model, qd model, voltage-behind-reactance (VBR) model,phase-domain model, induction machine, dynamic simulation