Analytical Modeling of Novel High Thrust Force Density Segmented PM Consequent Pole Linear Flux Switching Machine

Permanent Magnet Linear Flux Switching Machines (PMLFSMs) are potential candidates when higher thrust force ( $\boldsymbol {T}_{ \boldsymbol {F}}$ ) and low cost are the primal requirements. However, conventional PMLFSMs shows flux leakages and utilizes high Permanent Magnet (PM) volume ( $\boldsymbol {V}_{ \boldsymbol {PM}}$ ) that increase overall expense. Therefore, this paper proposed novel Segmented PM Consequent Pole Linear Flux Switching Machine (SPMCPLFSM) with flux bridges. In comparison with PMLFSM, the proposed SPMCPLFSM diminish detent force by $\boldsymbol {20.41\%}$ , suppress thrust force ripples by 27.68%, reduces ripple ratio by 1.77 times, improve $\boldsymbol {T}_{ \boldsymbol {F}}$ to 2 times and boost $\boldsymbol {T}_{ \boldsymbol {F}}$ density to 2.64 times utilizing 75% PM volume and reducing PM cost by 24.16%. Moreover, to overcome computational complexity and computation time, analytical model uniting Lumped Parametric Magnetic Equivalent Circuits, vector potential and Maxwell Stress Tensor method are utilized for open circuit flux linkages, magnetic flux density, detent force and thrust force. Finally, analytical model is validated with finite element analysis (FEA) that show good agreement with FEA. Thus, authors are assured to suggest analytical techniques for early design purpose and proposed SPMCPLFSM for roller coaster application.