A Study on the Increasing Levitation Force in the Magnetic Levitation System
The magnetic levitation system utilizing electromagnetic suspension system is using the way that the body of a magnetically levitated vehicle is come up from the track of the ground by using the electromagnetic inhalation power of an actuator. Also, since it drives by dangling from an elevated guideway, an efficiency of the levitation force is very of importance. But, due to its defect, the mechanical trouble is frequently made. Until now, to increase the levitation force, an amplifier has equipped with a controller, or a controller able to decrease the external force has done, as it can maximize the levitation force. In the current paper, as the way that the levitation force is maximized, the frequency range was presented. It is to decrease the amplitude of electric currents induced from the track. The flux of magnetic force made by the induction current on the track has an aptitude to disturb that made by the electromagnet. In this paper, we presented the electric model of the magnetic levitation system utilizing electromagnetic suspension system and displayed the levitation force of the system as frequency responses of the actuator. Then, we computed the current induced from the track to the frequency of the actuator, and it was computed in the condition that the current induced from the track is maximized. According to the result using an intermediate or low speed as the standard for analyzing it, the frequency of the actuator is in 53Hz, and the range of it to maximize the levitation force is in about 0 to 25Hz. Its validity was indicated by using Matlab and PSpice programs.
Electromagnetic suspension system Frequency response Induced current Levitation force Magnetic levitation
Minseok Kim Jaeil Yim Junseog Ko Jongwoo Lee
Department of Railroad Electrical & Signaling Engineering, Seoul National University of Technology, Haedong Power System, 480 Hwajung-doung, Duckyang-gu, Gyeonggi-do, Korea Korea Rail Network Authority, 1 Jeong-dong, Donggu, Daejeon, Korea
国际会议
The International Conference on Electrical Engineering 2009(2009 电机工程国际会议)
沈阳
英文
1-7
2009-07-05（万方平台首次上网日期，不代表论文的发表时间）