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Numerical Analysis and Design of Moving Contactless High Power Transformer

  • Lee, Dong-Su (School of Information and Communication Engineering, Sungkyunkwan University) ;
  • Jang, Dong-Uk (Electrical Power Supply Division, Korea Railroad Research Institute) ;
  • Kim, Hyung-Chul (Electrical Power Supply Division, Korea Railroad Research Institute) ;
  • Jung, Sang-Yong (School of Information and Communication Engineering, Sungkyunkwan University)
  • Received : 2011.08.08
  • Accepted : 2011.10.04
  • Published : 2011.12.31

Abstract

This paper presents numerical analysis and design of high power contactless transformer with a large air-gap for moving on a guided linear track which is appropriate for high-speed train or MAGLEV. The system has the typical characteristics of large leakage inductance, small magnetizing inductance, and low coupling coefficients giving rise to lower power transfer efficiency, which have been compensated by the purposely-designed contactless transformer coupled with the resonant converter modulating with high switching frequency. In particular, the best model selected from the generated six design candidates has been applied for 3D Finite Element Analysis (FEA) investigating on iron loss to evaluate the overall system efficiency.

Keywords

Acknowledgement

Supported by : Korea Institute of Energy Technology Evaluation and Planning (KETEP)

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