| Title |
A Study On the Design and Constant Torque Control of the Eddy Current Brake For a High-speed Railway Train |
| Authors |
류홍제(Ryu, Hong-Je) ; 강경호(Gang, Gyeong-Ho) ; 우명호(U, Myeong-Ho) ; 김종수(Kim, Jong-Su) ; 강도현(Gang, Do-Hyeon) ; 임근희(Im, Geun-Hui) |
| Keywords |
Eddy current brake ; Constant torque ; Braking force ; Attraction ofrce |
| Abstract |
The introduction of the eddy current braking(ECB) system in HSRT(high speed railway train) is known to be advantageous, in that the system is independent on wheel-rail adhesion coefficient which is greatly affected by weather condition. It also minimize the maintenance of the brake system and does not require any additional electric energy because it is powered form the regenerated power at the time of the braking. In this study, the braking and attraction forces of the ECB are simulated by 2-D FEM and are experimentally verified on a down-scaled prototype. A control algorithm of the ECB is proposed to generate constant braking torque using linear variation of the reference current according to speed. Experimental results shows that the constant torque is generated over all operating speed region by developed control algorithm. |