Analysis of coupling effect of double-side linear induction motor with shielding structure

For the double-side linear induction motor(DSLIM) with high current, there is leakage magnetic field which may be harmful to man and the electrical equipment around the motor. Thus, a shielding structure is introduced which produce the electromagnetic coupling effect with the armature. This paper presents an equivalent circuit of DSLIM with shielding structure considering the coupling effect, and researches the coupling effect to motor thrust and circuit parameters.