用于外转子鼠笼式感应电动机的分数槽集中绕组(FSCW)配置

V. M. Sundaram, H. Toliyat
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引用次数: 17

摘要

分数槽集中绕组(FSCW)或齿形绕组已被证明是非常有益的同步和永磁(PM)电机。然而,气隙磁通中大量的空间谐波使得FSCW结构不适用于感应电动机。本文提出使用多层FSCW缠绕在两层定子槽上,以消除次谐波(基波的一小部分)和高阶空间谐波,并提供无重叠的绕组排列。这种绕组配置有几个优点,如高扭矩密度,较短的末端绕组长度和更容易制造外转子鼠笼式感应电机泵,风扇和轮毂驱动。对所提出的绕组结构与传统的分布式绕组进行了设计比较。
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A Fractional Slot Concentrated Winding (FSCW) configuration for outer rotor squirrel cage induction motors
Fractional Slot Concentrated Windings (FSCW) or tooth windings have been proved to be very beneficial for synchronous and permanent magnet (PM) motors. However, the abundance of space harmonics in the air gap flux have rendered FSCW configurations unsuitable for induction motors. This paper proposes the use of a multi-layer FSCW wound around two layers of stator slots that eliminates sub (a fraction of fundamental) and higher order space harmonics and provides a non-overlapping winding arrangement. This winding configuration has several advantages like high torque density, shorter end-winding length and easier manufacturability for outer rotor squirrel cage induction motors for pumps, fans and in-wheel hub drives. A design comparison is performed between the proposed winding configuration and a conventional distributed winding.
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