Optimal Design of Marine Motors for Joint Efficiency and Economic Optimization

The permanent magnet synchronous motor (PMSM) has been widely used in the field of ship electric propulsion due to its advantages a small size, light weight, low loss, and high efficiency. In this paper, 100 kW ship-side thruster was taken as research object, problem harmonic content air gap magnetic flux density addressed by designing rotor eccentricity. On basis, hybrid Taguchi method genetic algorithm optimize structural parameters with increasing efficiency reducting cost optimization objectives. results show that performance economy have greatly improved after optimization. Finally, weight reduction hole designed, prototype manufactured tested. test data are within allowable range compared simulation data, verifying effectiveness multiobjective proposed paper.