Design of Linear Transverse Flux Machine for Stelzer Machine using Equivalent Magnet Circuit and FEM

  • Jeong, Sung-In (Dept. of IT-Automotive Engineering, Gwangju University)
  • Received : 2017.10.31
  • Accepted : 2018.03.15
  • Published : 2018.07.01


This paper presents the new design and validation process of the linear transverse flux machine of the stelzer machine for hybrid vehicle application. A linear transverse flux machine is a novel electric machine that has higher force density and power than conventional electric machine. The process concentrates on 2-dimensional and 3-dimensional analysis using equivalent magnetic circuit method considering leakage elements and it is verified by finite element analysis. Besides the force characteristics of all axis of each direction are analyzed. The study is considered by dividing the transverse flux electric excited type and the transverse flux permanent magnet excited type. Additionally three-dimensional analysis in this machine is accomplished due to asymmetric structure with another three axes. Finally, it suggests the new design and validation process of linear transverse flux machine for stelzer machine.


Supported by : Gwangju University


  1. Sung In Jeong, Comparative Study of Linear Oscillating Generators, Dissertation an der Technischen Universitat Braunschweig, 2015.
  2. J. Vining, T.A. Lipo, G. Venkataramanan, Design and Optimization of a Novel Hybrid Transverse / Longitudinal Flux, Wound-Field Linear Machine for Ocean Wave Energy Conversion, 978-1-4244-2893- 9/09/$25.00 \compose{\LARGE O}{\normalsize c} 2009 IEEE.
  3. S. A. Nasar, Electromagnetic Energy Conversion Devices and Systems.
  4. R. Qu and T. A. Lipo, "Analysis and modeling of air- gap and zigzag leakage fluxes in a surface-mounted permanent magnet machine," IEEE Trans. Ind. Appl., vol. 40, no. 1, pp. 121-127, Jan./Feb. 2004.
  5. V. Ostovic, Dynamics of Saturated Electric Machines, New York, Springer-Verlag, 1989.
  6. P. Sewell, K. J. Bradley, J. C. Clare, P. W. Wheeler, A. Ferrah, and R. Magill, "Efficient dynamic models for induction machines," Intl. J. Numer. Model., vol. 12, pp. 449-464, 1999.<449::AID-JNM365>3.0.CO;2-W
  7. H. Meshgin-Kelk, J. Milimonfared, and H. A. Toliyat, "A comprehensive method for the calculation of inductance coefficients of cage induction machines," IEEE Trans. Energy Conversion, vol. 18, pp. 187-193, Jun. 2003.
  8. J. Perho, "Reluctance network for analysing induction machines," Acta Polytechnica Scandinavica, Electrical Engineering Series, vol. 110, pp. 1-147, Dec. 2002.