Comparative Research on Thrust and Compensation of Rotors of Double-sided Linear Induction Motors at Different Positions

The long primary double sided linear induction motors (LP-DSLIM) have significant applications in high-thrust and high-speed situations. The periodic boundary condition is the key factor and are often required in simulation. This article establishes comparative results of three times and six times LP-DSLIM with periodic model and twelve times LP-DSLIM with global model based on the finite element method (FEM). This article also conducts comparative analysis on the traction characteristics of the rotor at different initial positions. There is a deviation in the traction characteristics at the initial position that requires corresponding compensation, and the deviation is relatively small at the next magnetic pole of the stator winding. This study can provide a theoretical analysis basis for the design of long-distance stator structure simulation.