Variable Flux Memory Motor Employing Double-Layer Delta-Type PM Arrangement and Large Flux Barrier for Traction Applications
Variable Flux Memory Motor Employing Double-Layer Delta-Type PM Arrangement and Large Flux Barrier for Traction Applications
复制标题
适用于牵引应用的采用双层 Delta 型 PM 布置和大磁通屏障的可变磁通记忆电机
DOI：
10.1109/tia.2021.3068329
复制
发表时间：
2021
影响因子：
4.4
通讯作者：
K. Orikawa
中科院分区：
文献类型：
--
作者：
R. Tsunata;M. Takemoto;S. Ogasawara;K. Orikawa
这篇文章包括两个关于可变磁通记忆电动机（VFS）的重要主题。第一个主题是具有双层永磁体（PM）的VFFET的磁化特性分析。通过二维数值模拟，阐明了双层永磁体的磁化特性与磁电阻率的关系。此外，一个紧凑的尺寸VFMM的原型制作，并进行实验，以调查磁化特性分析的准确性。第二个主题是建议VFMM采用双层三角形型PM安排和扩展的磁通屏障牵引应用。传统的变频调速器存在三个关键问题：正、负磁化电流脉冲不对称、变磁通永磁电机（VPMs）失磁引起的谐波导致铁损增加以及负载条件下VPMs的意外失磁。所提出的VFMM可以克服上述问题，采用双层三角形的PM安排和扩展的磁通屏障。此外，拟议的VFMM实现了更高的效率比目标电机安装在丰田普锐斯第四代在广泛的操作范围。
This article consists of two important topics regarding variable flux memory motors (VFMMs). The first topic is magnetization characteristic analysis of VFMMs having a double-layer permanent magnet (PM). Two-dimensional simulations are executed to clarify relationship between magnetization characteristic and ratio of the double-layer PM. In addition, a prototype of a compact size VFMM is fabricated, and experiments are also carried out to investigate accuracy of magnetization characteristic analysis. The second topic is the proposed VFMM employing double-layer delta-type PM arrangements and extended flux barriers for traction applications. Conventional VFMMs have three critical issues, which are as follows: asymmetric positive and negative magnetizing current pulses, increase in the iron loss due to harmonics caused by demagnetized variable flux PMs (VPMs), and unintentional demagnetization of VPMs under load condition. The proposed VFMM can overcome the abovementioned problems by employing double-layer delta-type PM arrangements and extended flux barriers. In addition, the proposed VFMM achieves much higher efficiency than that of the target motor mounted in TOYOTA Prius fourth-generation over a wide operating range.