The switchless reluctance motor’s non-permanent magnet structure design ensures its high reliability in the marine environment; thus

it is a feasible solution for the generator of a sea wave power generation system. However

the corresponding thrust density and efficiency remain insufficient. This study focused on a new type of flat linear switched reluctance motor (LSRM)

using the finite element software to establish a structural model

and optimized the design with the goal of improving the efficiency and energy density. The entropy method was adopted for sensitivity stratification to objectively select weights to avoid the influence of subjectively selected different proportional weights on the optimization results. Based on the entropy method

the sensitivity of different structural parameters was stratified

and the simulated annealing algorithm

response surface method

and single parameter scanning method were combined for optimization. Finally

the optimal structural size parameters of the motor were determined. Based on the two-dimensional finite element method

to simulate the electromagnetic performance of the reluctance motor under different operating conditions

such as thrust

loss

and efficiency

changes in motor performance before and after optimization were compared to verify the high power generation efficiency and energy density of the optimized linear motor.