A STUDY OF DESIGN OPTIMIZATION SYNCHRONOUNS RELUCTANCE MOTORS USING ELECTOROMAGNETICS-MECHANICS COUPLED TOPOLOGY OPTIMIZATION METHOD

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  • 磁界・力学連携トポロジー最適化手法を用いた同期リラクタンスモータの設計最適化に関する研究

Abstract

Recentry, demand for higher efficiency of motor has increased due to global warming, the electrification of cars and others. the synchronous reluctance motors are inexpensive because they do not require magnets, the torque characteristic is lower than that of the interior permanent magnet motor. Furthermore, when the motor rotates on the high speed, it is necessary to enhance not only the high efficiency but also the high stiffness. When designing motors with high efficiency and high stiffness, "electromagnetics-mechanics coupled topology optimization" is useful to automatically estimate the machine geometry that satisfies the design goals. This paper investigates a electromagnetics-mechanics coupled topology optimization method for synchronous motors, which using density-level set method and structural mutation to prevent grayscale residuals and convergence to local minimum.

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