The 13th International Symposium on Linear Drives for Industry Application (LDIA2021)

104 / 2021-06-18 14:22:11

Design and Analysis of a Double-stator Linear oscillator with Hybrid Lamination for Stirling power system

double-stator tubular linear oscillator， hybrid lamination，electromagnetic

In general, the circular lamination is used in
tradition linear machine, several voids are produced in outside
stators which decrease the core utilization and flux density in air
gap. To address this problem, a double-stator tubular linear
oscillator based on hybrid laminated structure (HL-DSTLO) is
proposed. The HL-DSTLO is constituted of two stators and a
permanent magnets mover. The teeth and yoke of the outer
stator lamination in a separated formation, and the teeth is
separated in direction of axial and circular to laminate,
meanwhile, circular split lamination method is applied in the
inner stator. The paper forces on the main electromagnetic
features of the HL-DSTLO. The operation principle based on
the flux path analysis is presented, and the influence of
structural parameters on the electromagnetic properties are
discussed by using finite-element method. Finally, the
experimental result was analysed to confirm the prediction of
the FEA.