Additive Manufacturing of a Conformal Hybrid-Strand Concentrated Winding Topology for Minimal AC Loss in Electrical Machines
Additive Manufacturing of a Conformal Hybrid-Strand Concentrated Winding Topology for Minimal AC Loss in Electrical Machines
复制标题
共形混合股集中绕组拓扑的增材制造，可实现电机中最小交流损耗
DOI：
10.1109/ecce47101.2021.9595059
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发表时间：
2021
期刊：
影响因子：
--
通讯作者：
Simpson N
中科院分区：
文献类型：
--
作者：
Simpson N
电机的功率密度和可靠性最终受到它们在绝缘系统和所用材料的额定温度限制内消散内部产生的损耗的能力的限制。由于电绕组通常是损耗的主要来源，它们的增强型设计是提高功率密度的关键途径。金属添加剂制造有可能通过消除对导体轮廓和拓扑的限制来扰乱传统的绕组设计。本文对高速内置式永磁牵引电机的集中绕组进行了分阶段的重新设计。在每个阶段，都引入了提高性能的功能，包括不均匀的导体形状、混合实芯绞线和端部绕组换位，从而形成了共形混合股集中绕组拓扑，在基线设计的基础上总体降低了40%的损耗。
The power-density and reliability of electrical machines is ultimately limited by their ability to dissipate internally generated losses within the constraints of the temperature rating of the insulation systems and materials used. As the electrical windings are typically the dominant source of loss, their enhanced design is in the critical path to power-density improvement. Metal additive manufacturing has the potential to disrupt conventional winding design by removing restrictions on conductor profiles and topologies. In this paper, the concentrated windings of a high-speed Interior Permanent Magnet traction machine are redesigned in stages. At each stage, features to improve performance are introduced including non-uniform conductor shapes, hybrid-solid-stranded conductors and end-winding transposition, resulting in a conformal hybrid-strand concentrated winding topology yielding an overall 40 % reduction in loss over the baseline design.