Abstract

Disk electromechanical energy converters are used as generators in wind power plants, microturbines, and electric vehicles. The article discusses a new design of a low-speed disk magnetoelectric three-phase axial flux synchronous machine for distributed power generation, which has improved weight–size parameters. In the proposed wind power generator design, the air gap is reduced due to the removal of all coil-to-coil connections and a concentrated winding with a large winding coefficient is applied. The two-rotor model that is created for this design (150 W, 83 V, 250 min^–1) is described, as well as the features of its magnetic circuit and the location of the concentrated winding. The geometrical dimensions of the axial flux synchronous machine determine the inner stator diameter. A technique for balanced selection of the main machine dimensions and the parameters of its winding according to the rated data and the limitations of electromagnetic loads is presented. Comparison of the parameters and characteristics of the new disk design and the cylindrical design with tangential magnetization is carried out using the example of a 40-pole 5-kW synchronous wind generator. The proposed disk design is superior to the cylindrical one in efficiency and demands a smaller material cost. The limitations are the larger outer diameter of the machine and the required large mass of magnets.

中文翻译：

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轴向磁通风力发电机的参数选择程序

摘要

盘式机电能量转换器在风力发电厂，微型涡轮机和电动汽车中用作发电机。本文讨论了一种用于分布式发电的低速磁盘磁电三相轴向磁通同步电机的新设计，该电机具有改进的重量尺寸参数。在提出的风力发电机设计中，由于消除了所有线圈到线圈的连接，气隙得以减小，并且采用了具有大绕组系数的集中绕组。为此设计创建的两转子模型（150 W，83 V，250分钟^–1），以及其磁路的特征和集中绕组的位置。轴向磁通同步电机的几何尺寸决定了定子的内径。提出了一种根据额定数据和电磁负载的限制来平衡选择主机尺寸和绕组参数的技术。以一个40极5 kW同步风力发电机为例，比较了新磁盘设​​计和具有切向磁化的圆柱设计的参数和特性。所提出的盘设计在效率上优于圆柱形盘，并且需要较小的材料成本。局限性在于机器的较大直径和所需的大量磁铁。