Analysis of the Power Factor of Stator DC-Excited Vernier Reluctance Machines
Analysis of the Power Factor of Stator DC-Excited Vernier Reluctance Machines
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定子直流励磁游标磁阻电机功率因数分析
DOI：
10.1109/intmag.2015.7157118
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发表时间：
2015
影响因子：
2.1
通讯作者：
Li Jian
中科院分区：
文献类型：
--
作者：
Jia Shaofeng;Qu Ronghai;Li Jian
定子直流励磁游标磁阻电机（dc-VRM）是一种采用双凸极结构的新型游标磁阻同步电机，其创新之处在于采用定子集中直流绕组产生励磁磁场。与转子绕线式励磁电机或定转子永磁同步电机相比，这些电机的特点是由于没有永磁体而具有低成本，转子结构坚固，以及由于灵活的定子直流励磁场而产生的宽速度范围。本文利用所提出的相量图，对直流阀控电机的功率因数进行了解析分析和有限元分析，并通过实验验证了分析结果。结果表明，在固定槽宽和槽满的情况下，功率因数主要取决于直流电流与电枢绕组电流的比值以及电枢同步电感与励磁绕组和电枢绕组之间互感的比值。然而，如果采取措施进一步提高功率因数，则会牺牲转矩。
Stator dc-excited vernier reluctance machines (dc-VRMs) are a kind of a novel vernier reluctance synchronous machine that employs doubly salient structures; their innovations include stator concentrated dc windings to generate the exciting field. Compared with the rotor wound field machines or stator/rotor PM synchronous machines, these machines are characterized by low cost due to the absence of PMs, a robust rotor structure, and a wide speed range resulting from the flexible stator dc exciting field. In this paper, with the proposed phasor diagram, the power factor of dc-VRMs is analyzed analytically and with the finite-element analysis, and the analysis results are confirmed with the experiment. It is found that, with constant slot sizes and slot fill, the power factor is mainly dependent on the ratio of the dc current to the armature winding current and also the ratio of the armature synchronous inductance to the mutual inductance between the field winding and the armature winding. However, torque will be sacrificed if measures are taken to further improve the power factor.
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影响因子：
2.1
作者：
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通讯作者：
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影响因子：
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