Torque analysis and slot regions assignment of a DC-excited flux-modulated machine with two stator windings
Torque analysis and slot regions assignment of a DC-excited flux-modulated machine with two stator windings
复制标题
具有两个定子绕组的直流励磁磁通调制电机的扭矩分析和槽区域分配
DOI：
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发表时间：
2017
期刊：
影响因子：
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通讯作者：
M. Doppelbauer
中科院分区：
文献类型：
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作者：
J. Ou;Yingzhen Liu;M. Doppelbauer
介绍了一种直流励磁调制（DCEFM）电机。它有一个带有p / r极的转子和一个定子上的两组绕组。其中一个绕组有p个极对，用直流电流激励。第二个绕组有p个极对，用交流正弦电流激励。p r p f p a之间的关系是p r = p f + p a。本文的目的是分析电机的转矩，以优化分配给两个定子绕组的槽区，以便在允许的铜损耗下产生最大的转矩。首先，推导了电机的转矩方程。本文所描述的方法也适用于其他类型的电机，如变磁通磁阻电机、励磁磁通开关电机。通过有限元分析对分析结果进行了验证。结果表明，要获得最佳转矩，两个绕组的磁动势（mmf）需要近似相等。
This paper presents a DC-excited flux-modulated (DCEFM) machine. It has one rotor with p r poles and two sets of windings on one stator. One of the windings has p f pole-pairs and is excited with DC current. The second winding has p a pole-pairs and is excited with AC sinusoidal current. The relationship between p r , p f and p a is p r = p f + p a . The purpose of this paper is to analyze the torque of the machine in order to optimize the slot regions assigned to the two stator windings for generating the highest torque at the admissible copper losses. Firstly, the torque equation of the machine is derived. The methods described in this paper are also feasible for other machine types such as variable flux reluctance machine, field excited flux-switching machine. By using the finite element analysis (FEA) the analytical results are verified. The results show that the magneto motive forces (MMFs) of the two windings need to be approximately equal to obtain optimal torque.