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Design of Brushless Doubly-Fed Machines Based on Magnetic Circuit Modeling

机译：基于磁路建模的无刷双馈电机设计

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摘要

This paper proposes a magnetic circuit model (MCM) for the design of a brushless doubly-fed machine (BDFM). The BDFM possesses advantages in terms of high reliability and reduced gearbox stages, and it requires a fractionally-rated power converter. This makes it suitable for utilization in offshore wind turbines. It is difficult for conventional design methods to calculate the flux in the stator because the two sets of stator windings, which have different pole number, form a complex flux pattern which is not easily determined using common analytical approaches. However, it is advantageous to predict the flux density in the teeth and air-gap at the initial design stage for sizing purposes without recourse finite element analysis. Therefore a magnetic circuit model is developed in this paper to calculate the flux density. A BDFM is used as a case study with FEA validation.
机译：本文提出了一种用于无刷双馈电机（BDFM）设计的磁路模型（MCM）。 BDFM在高可靠性和减少变速箱级方面具有优势，并且需要分数功率转换器。这使其适用于海上风力涡轮机。对于传统的设计方法来说，很难计算出定子中的磁通量，因为两组具有不同极数的定子绕组会形成复杂的磁通量模式，而这是使用常规分析方法不易确定的。但是，在不进行有限元分析的情况下，为了确定尺寸而在初始设计阶段预测齿和气隙中的磁通密度是有利的。因此，本文开发了磁路模型来计算磁通密度。 BDFM用作具有FEA验证的案例研究。

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