DOI QR코드

DOI QR Code

Study on the Design of a Rotary-type LSM and Test Equipment for Design Verification of LSM for Ultra-high-speed Train

초고속열차용 LSM 설계 검증을 위한 회전형 구조의 LSM 및 시험기 설계 연구

  • Park, Chan-Bae (Department of Railroad Operation System Engineering, Korea National University of Transportation)
  • Received : 2017.03.06
  • Accepted : 2017.03.27
  • Published : 2017.04.30

Abstract

A very long test track is required for high-speed operation test of the real-scale Linear Synchronous Motor (LSM) for ultra-high-speed trains. The required length results in huge construction cost and economic loss if any error occurs during development. Therefore, validation study of the LSM design technology using a low-cost small-scale model must be carried out in the early research stages. It is possible to deduce an optimal winding method for the armature and determine the mechanical properties of the LSM through a performance tester that applies a rotary-type small-scale LSM model. In addition, it is possible to utilize previous research on LSM control systems. Therefore, a basic design model, comprising a rotary-type LSM tester that meets the requirements for the propulsion of 600km/h-class ultra-high-speed trains, is derived in this study. Finally, an optimal model, which has a stable structure under the condition of 1500rpm or more high-speed rotation, is derived by electromagnetic and mechanical stiffness analysis.

초고속열차 추진용 실모델 선형동기전동기(Linear Synchronous Motor, LSM)의 고속운전시험을 위해서는 매우 긴 노선이 필요하고, 이로 인해 막대한 비용이 요구되며, 개발 도중 시행오차가 발생할 경우 경제적 손실이 크게 발생할 우려가 있다. 따라서 저 비용의 축소모델을 이용한 LSM 설계 기술의 타당성 검증 연구가 개발 초기 단계에 이루어져야 한다. 회전형 구조를 갖는 LSM 축소모델을 적용한 성능시험기를 통하여 LSM의 지상전기자 권선의 최적방식 도출 및 기기적 특성 파악이 가능하며, 제어시스템의 선행연구 수행에 활용이 가능하다. 따라서 본 논문에서는 600km/h급 초고속열차 추진용 LSM의 요구사양에 부합하는 회전형 시험기의 설계 모델을 도출하고, 전자계 해석 및 기구적 강성 해석을 통하여 1500rpm 이상의 고속 회전 조건에서의 최적 모델을 도출하였다.

Keywords

References

  1. C.B. Park, B.S. Lee, C.Y. Lee (2014) Characteristic analysis of superconducting lsm for the wheel-rail-guided very high speed train according to winding method of the ground 3-phase coils, The Transactions of the Korean Institute of Electrical Engineers, 63(8), pp. 1164-1169. https://doi.org/10.5370/KIEE.2014.63.8.1164
  2. C.B. Park, J.H. Kim, B.S. Lee (2014) Design of a small-scaled superconducting lsm for the very high speed railway vehicle, The Transactions of the Korean Institute of Electrical Engineers, 63(11), pp. 1602-1607. https://doi.org/10.5370/KIEE.2014.63.11.1602
  3. J.H. Seo, H.K. Jung (2009) Optimal design of an IPMSM for high-speed operation using electromagnetic and stress analysis, Journal of Electrical Engineering & Technology, 4(3), pp. 377-381. https://doi.org/10.5370/JEET.2009.4.3.377
  4. W.H. Kim (2014) A stress analysis method for the rotor design of an IPMSM considering radial force, Journal of Electrical Engineering & Technology, 9(3), pp. 888-892. https://doi.org/10.5370/JEET.2014.9.3.888
  5. H.S. Seol, E.S. Park, J. Lee, C.B. Park (2015) Design of high-speed lsm rotary type testing machine in consideration of mechanical strength, The Transactions of the Korean Institute of Electrical Engineers, 64(5), pp. 824-829. https://doi.org/10.5370/KIEE.2015.64.5.824
  6. S.W. Hong, J.H. Park (1996) An improved substructure synthesis method for unbalance response analysis of rotor bearing systems, Journal of Korean Society for Noise and Vibration Engineering, 6(1), pp. 71-82.
  7. K.J. Kim, J.W. Lee (2005) Analysis of magneto-rheological fluid based semi-active squeeze film damper and its application to unbalance response control of rotor, Journal of Korean Society for Noise and Vibration Engineering, 15(3), pp. 354-363. https://doi.org/10.5050/KSNVN.2005.15.3.354