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标题：外转子永磁同步电机优化设计与分析 |
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作者：谢哲栋，卢琴芬 |
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| 2018年第9期 访问次数：235次 |
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摘要：磨床采用表贴式外转子永磁同步电机（ESPMSM）构成的直接式砂轮，不仅可提高系统效率与精度，而且能够简化系统结构。本文针对该应用，提出了一种30kW的ESPMSM结构，以电机有效材料成本为优化目标，采用粒子群算法（PSO）完成了设计方案，同时，为了削弱齿槽转矩，设计了Halbach永磁阵列的外转子结构。最后，分析了设计方案的空载与负载特性分析，验证了设计的合理性。
关键词：ESPMSM；粒子群算法；齿槽转矩；Halbach永磁阵列
Abstract: The grinding machine adopts a directdrive grinding wheel composed of a surfacemounted externalrotor permanent magnet synchronous motor (ESPMSM), which not only improves the systems efficiency and accuracy, but also simplifies the systems structure. In this paper, a 30kW ESPMSM structure was proposed for this application. With the aim of decreasing the motors effective material cost, a particle swarm algorithm (PSO) was used to optimize the design. Besides, Halbach permanent arrays were introduced to reduce the cogging torque. Finally, the analysis of the noload and load characteristics of the design was conducted to verify the rationality of the design.
Key words: ESPMSM；particle swarm algorithm；cogging torque；Halbach permanent magnet array
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