Abstract
With the widespread application of permanent magnet synchronous motors in the new energy vehicle market, the demand for verification and optimization of the design rationality of permanent magnet synchronous motors is gradually increasing. This article first establishes a three-phase four pole permanent magnet synchronous motor model based on the motor parameters provided by the motor manufacturer. Then, finite element simulation calculations are carried out on this model to solve the three-phase induced electromotive force, three-phase magnetic flux, cogging torque, iron core loss, and eddy current loss of the permanent magnet synchronous motor when it is unloaded. The rationality of the motor design is verified through the solution results. Finally, the average core loss of the permanent magnet synchronous motor is reduced by 3.6% through parameterized simulation, and its operating efficiency is improved. The optimization design is carried out on it.
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