Optimization Design of Surface-mounted Permanent Magnet Synchronous Motors Using Genetic Algorithms

Trinh Truong Cong; Thanh Nguyen Vu; Gabriel Pinto; Vuong Dang Quoc

doi:10.4108/ew.4864

Authors

Trinh Truong Cong Hanoi University of Science and Technology
Thanh Nguyen Vu Hanoi University of Science and Technology
Gabriel Pinto University of Minho
Vuong Dang Quoc Hanoi University of Science and Technology

DOI:

https://doi.org/10.4108/ew.4864

Keywords:

Permanent magnet sychronous motor, PMSM, Surface-mounted permanent magnet synchronous motor, SPMSM, genetic algorithm, GA, finite element method

Abstract

The permanent magnet synchronous motor (PMSM) has gained widespread popularity in various industrial applications due to its simple structure, reliable performance, compact size, high efficiency, and adaptability to different shapes and sizes. Its exceptional characteristics have made it a focal point in industrial settings. The PMSM can be categorized into two primary types based on the arrangement of the permanent magnets (PM): interior permanent magnet (IPM) and surface-mounted permanent magnet (SPM). In the IPM, the magnets are embedded into the rotor, while in SPM, they are mounted on the rotor's surface. The utilization of PMs eliminates the need for excitation currents due to their high flux density and significant coercive force. This absence of excitation losses contributes to a notable increase in efficiency. In this study, a multi-objective optimal design approach is introduced for a surface mounted PMSM, aiming to achieve maximum efficiency while minimizing material costs. The optimization task is accomplished using a genetic algorithm. Furthermore, the motor designs are simulated using the finite element method (FEM) to assess and compare designs before and after the optimization process.

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