Abstract:In order to handle the problem of insufficient braking force produced by the maglev linear eddy current braking device, we corrected specific parameters in electromagnetic field, such as the exciting current, air gap, yoke thickness, core width and polar pitch. The pulse-current was used as the exciting form to increase magnetic field intensity, which can keep a high-speed field shape. By analyzing the deformation of the moving electromagnetic field, the braking force of the braking device is effectively improved. The results show that within a certain range, increasing the pulse amplitude can effectively improve the braking force. On the other hand, as the amplitude of the high pulse level increases, the braking force will greatly decrease. Besides, the pulse frequency has a relatively small impact on braking force. Meanwhile, the higher duty-cycle of pulse can also be used to generate greater braking force.