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Dynamic Modeling and Simulation of Induction Machine Using MATLAB/SIMULINK

Nowadays, in different fields regarding electrical engineering, induction machines are being used for various purposes. During start-up and other severe motor load changes, the induction motor draws large currents, produces voltage dips and produces oscillatory electromagnetic torque. It is therefore very important to be able to model the induction motor in order to predict these types of phenomena. Steady state model cannot deal with these transients. Hence the dynamic model of the electric machine is essential in order to assess the adequacy of the system and to see the transient torque as well as current in the motor considering the instantaneous effects of varying voltages/currents as well as the varying load.

This report is about the overall procedure involved in developing the dynamic model of an induction motor. The dynamic model of the induction motor is developed by using the stationary reference frame. The concept of total power invariance also plays a vital role in the designing procedure. The required transformation in voltages, currents or flux linkages is derived in a generalized way. The finally obtained equations, in terms of flux linkages, defining the dynamics of the induction motor are then simulated in MATLAB/SIMULINK in a sequential order to obtain the required responses. Thus obtained simulation output is then compared with the practical experiment result.

The main target of this project is to develop a model which can perform the transient analysis of the induction motor and also develop a detailed knowledge about the overall model of induction machines.


  •     Aakash Amatya
  •     Prashant Bajracharya
 

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