Permanent magnet motor robust optimization design method considering uncertainty of magnetic material

Abstract

The invention discloses a permanent magnet motor robust optimization design method considering uncertainty of a magnetic material. The method comprises the following steps: determining a motor design demand; performing initial design on a motor according to design requirements, and determining design parameters and to-be-optimized performance; constructing a motor robust optimization model considering uncertainty factors of a magnetic material, setting relevant parameters such as residual magnetism, magnetization direction and size of the permanent magnet material into a random number set obeying a certain distribution rule by the model, and setting expectation and standard deviation of motor performance as design targets; solving a robust multi-objective optimization model by using an evolutionary algorithm and an agent model; determining a processing scheme after evaluating the motor performance. According to the design method of the permanent magnet motor, potential influences of uncertain factors existing in material characteristics and later processing of the magnetic material on the performance of the motor are considered in the design stage, the robustness of the design scheme of the permanent magnet motor is improved through the design means, and the problems that a traditional design method of the permanent magnet motor is poor in prototype and design consistency and the like are solved.

Description

technical field [0001] The invention relates to a robust optimization design method for a permanent magnet motor, in particular to a robust optimization design method for a permanent magnet motor considering the uncertainty of magnetic materials, and belongs to the technical field of permanent magnet motors. Background technique [0002] In the field of motor technology, permanent magnet motors have been widely used due to their high power density, high efficiency and other advantages. Generally speaking, for the design and processing of permanent magnet motors, the design process of traditional induction motors is usually used for reference: first, select the motor type and design the initial structure according to the application requirements; then, obtain the optimal motor design scheme of the motor through design optimization; finally , Processing test prototype verification design. [0003] However, unlike induction motors, permanent magnet motors use permanent magnet ...

AI Technical Summary

Problems solved by technology

However, the current motor design often ignores the many uncertain factors in the material properties and post-processing of permanent magnet materials, which makes it difficult for the real performance of the motor prototype to achieve the designed performance.

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