자기부상열차용 선형유도전동기의 회생 제동 특성 해석

In this paper, electric braking performances of linear induction motor(LIM) designed for propelling the MAGLEV are presented. Regenerative braking is carried out from 110㎞/h to 20㎞/h, and plugging which converts the direction of travelling magnetic field is carried out in the low speed region below 20㎞/h. It is important to reduce attractive force which can affect the magnetic levitation load during regenerative braking or plugging operation mode. So in this paper the braking performances are analyzed by finite element method. As a result, braking force, attractive force, phase current, voltage to frequency patterns and its magnetic fields of braking LIM are presented.