Brushless Operation of a Wound-Field Synchronous Machine Using a Novel Winding Scheme
Brushless Operation of a Wound-Field Synchronous Machine Using a Novel Winding Scheme
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DOI：
10.1109/tmag.2019.2893883
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发表时间：
2019-02
影响因子：
2.1
通讯作者：
Muhammad Saad Ayub;A. Hussain;Ghulam Jawad Sirewal;B. Kwon
中科院分区：
文献类型：
--
作者：
Muhammad Saad Ayub;A. Hussain;Ghulam Jawad Sirewal;B. Kwon
本文提出了一种新的绕组方案，以产生附加的次谐波磁动势（SH-MMF）分量，用于绕线同步电机的无刷运行。现有的BL运行SH发电方案采用双逆变器或单逆变器，绕组不对称，定子一半槽位填充系数低。该方案包括一个具有对称定子绕组分布和所有定子槽填充系数相同的单逆变器。该方案中产生的附加SH-MMF分量被诱导到电机转子上的谐波绕组中。安装在转子外围的旋转桥式整流器将转子谐波绕组与转子磁场绕组连接起来，并向转子磁场绕组提供整流直流。采用二维有限元分析（FEA）对其原理进行了分析，并对有限元预测进行了实验验证。
This paper proposes a novel winding scheme to generate an additional sub-harmonic magneto-motive force (SH-MMF) component for the brushless (BL) operation of a wound-field synchronous machine. The existing SH generation schemes for BL operation use a dual inverter or a single inverter with asymmetrical winding and low slot fill factor in half of the stator. The proposed scheme comprises a single inverter with symmetrical stator winding distribution and the same fill factor for all stator slots. The generated additional SH-MMF component in the proposed scheme is induced in the harmonic winding wound on the machine rotor. A rotating bridge rectifier mounted on the rotor periphery connects the rotor harmonic winding with the rotor field winding, and rectified dc is supplied to the rotor field winding. The 2-D finite-element analysis (FEA) was carried out to analyze the principle, and the FEA predictions were experimentally validated.