Thermal Analysis and Test of Eddy-Current Braker for High-Speed Train

고속전철 와전류 제동장치의 온도 특성해석 및 실험

  • 정수진 (영남대 공대 전기공학과) ;
  • 강도현 (한국전기연구원 Mechatroncis 그룹) ;
  • 구대현 (한국전기연구원 Mechatroncis 그룹) ;
  • 김동희 (영남대 공대 전기공학과) ;
  • 방덕제 ((주) 신성이엔지 FAS 사업부 개발팀)
  • Published : 2003.05.01

Abstract

When a high-speed train reduces its operating velocity while decelerating from a maximum of 350 to 50 [km/h], the train applies eddy-current brakes, which results in a deceleration time of approximately 3minutes. Therefore, a high current is utilized in order to obtain a large braking force. Consequently, the temperature of the electromagnet and rail increases significantly. In this paper, The thermal characteristics on a single magnet pole with convection heat transfer coefficient are simulated by using 2D-FEM. To verify the analysis results, the computed temperatures are compared with the experimentally measured temperature at stationary state. Furthermore, transient-state thermal analysis is performed to predict the magnet temperatures as the train is decelerating.

Keywords

References

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