Equivalent Magnetic Circuit Analysis for Linear Transverse Flux Permanent Magnet Machine

The paper proposes a novel linear transverse flux permanent magnet machine with the flux-concentrating of three side wall in the mover which has the characteristics of high force density and high reliability. Firstly, the novel structure and work principle of the linear TFPM machine are introduced. Secondly, the equivalent magnetic circuit model is established by analyzing the magnetic flux distribution between the relative positions with stator and mover. Thirdly, the results of magnetic network model are calculated by the first law of Kirchhoff magnetic circuit, and are compared with the three-dimensional finite element model. Finally, a prototype is constructed and experiments show good agreement with the finite element analysis.