Research on the Parameters and Performances of a 4QT Prototype Machine Used for HEV
Research on the Parameters and Performances of a 4QT Prototype Machine Used for HEV
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DOI：
10.1109/tmag.2006.887539
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发表时间：
2007
影响因子：
2.1
通讯作者：
P. Zheng;Ranran Liu;P. Thelin;E. Nordlund;C. Sadarangani
中科院分区：
文献类型：
--
作者：
P. Zheng;Ranran Liu;P. Thelin;E. Nordlund;C. Sadarangani
四象限换能器（4QT）是一种混合动力电动汽车（HEV）动力系统概念。本文研究了由两个永磁同步电机[一个定子电机（SM）和一个双转子电机（DRM）]径向集成的4QT原型机。采用基于相量图的二维有限元法计算了永磁同步电机和永磁同步电机的电感，并考虑了涡流和饱和的影响。计算结果表明，涡流对同步电机和永磁同步电机电感的影响可以忽略，交叉磁化对同步电机电感的影响可以忽略，但对永磁同步电机电感的影响显著。利用二维有限元法计算了同步电机与DRM之间的磁耦合，发现磁耦合很小，可以实现同步电机与DRM的独立控制，为混合动力汽车的应用提供了良好的条件。在考虑斜槽影响的情况下，采用多层二维时间步进有限元法计算了同步电机和同步电机的转矩和空载线对线反电动势曲线。SM和DRM的平均转矩均满足要求，转矩波动较小。计算和测试的SM和DRM的空载线对线bef曲线吻合良好。SM和DRM的bef曲线都与正弦曲线相似，证明了磁性结构的良好设计
A four-quadrant transducer (4QT) is a hybrid electric vehicle (HEV) power train concept. In this paper, a 4QT prototype machine, which is integrated radially by two permanent-magnet synchronous machines [one stator machine (SM) and one double-rotor machine (DRM)], is investigated. The inductances of both the SM and the DRM are calculated with a phasor-diagram based 2-D finite-element method (FEM), which can include the effects of eddy current and saturation. The calculated results show that the effect of eddy current can be neglected for both the SM and DRM inductances, and the cross-magnetization influence on the SM inductances can be ignored but is remarkable on the DRM inductances. The magnetic coupling between the SM and the DRM is calculated with 2-D FEM, and it is found that little magnetic coupling exists, so the SM and the DRM can be controlled independently, which is a very good feature for HEV applications. With the effect of skewed slots considered, the torque and no-load line-to-line back electromotive force (BEMF) curves of the SM and the DRM are calculated with multislice 2-D time-stepping FEM. The average torques of the SM and the DRM both meet the requirements, and the torque ripples are quite low. The calculated and tested no-load line-to-line BEMF curves of the SM and the DRM are both in good agreements. Both the BEMF curves of the SM and the DRM are somewhat similar to sinusoidal ones, which proves a good design of the magnetic structure