The research of the lim caused electromagnetic disturbance Dependance on its characteristics and velocity

Abstract

In this article is given a model of a classical single linear induction motor with the help of which it was possible to obtain the expressions of the magnetic induction constituents that were used to examine the LIM as a source of the electromagnetic disturbance. It was examined the dependence of the LIM electromagnetic disturbance (magnetic induction sine, damping direct and inverse running constituents) on the characteristics of the motor and the velocity of the secondary element (SE). Using the characteristics of the concrete real LIM it was calculated the dependence of the end effects direct and inverse running magnetic induction wave penetration deepness on the velocity of the secondary element, if the air gap between the inductors was different. It was calculated the dependence of the main magnetic induction constituents amplitudes, which have the greatest importance for the electromagnetic disturbance, on the velocity of the secondary element when the thickness of the SE and the air gap between the inductors were different. The results of this research work could be applied in the realization of a concrete LIM when it is necessary to evaluate its low frequency electromagnetic disturbance.