In this paper, a mathematical model based on d-q axes equivalent circuit to describe the dynamic behaviour of Linear Induction Motor (LIM) considering the end effects. Because time-varying characteristics like the end effect, core saturation, and half-filled slots make dynamic modelling challenging, we can simplify the problem by employing two axes modelling which reduces the number of variables. The model is simulated using Synchronously rotating reference frame. The model is simulated using MATLAB/ SIMULINK tools as it is the prominent way for implementing the dynamic equations using the function blocks.
In this paper, the transient and steady state behaviour of the LIM with and without considering end effects using synchronously rotating reference frame are compared. From the results obtained it is concluded that:
1) In Linear Induction motor, there is attenuation in original thrust (force) due to the end effects.
2) Steady state is delayed to the end effects which are caused because of large air gap.
3) At steady state, the d-q axes primary and the rotor variables become DC quantities using a synchronously rotating reference frame. This reference frame is advantageous for studying multi-machine system.
4) The thrust force behaviour without involvement of the end effects does not have oscillations.
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