A magnetic equivalent circuit model of consequent-pole magnetic screw based on 2-D reluctance network

In this paper, a two-dimensional (2-D) reluctance network magnetic equivalent circuit (MEC) model is proposed to reduce the performance analyzing time consumption at the design stage for the consequent-pole magnetic lead screw (CP-MLS). The solution region is desecrated by serious universality square grids, and each grid consists of four adjacent magnetic equivale nt circuit cross-elements, which contain the reluctance and magnetomotive force along radial and axial directions. The flux of each branch in the model can be obtained after solving the combination equations from Kirchhoff's current equation of all the grids. Then the flux density and thrust force can be obtained. Finally, the effectiveness of the proposed MEC model is verifi ed by the finite element method and experiment.