Electromagnetic characteristics analysis of E-core stator doubly salient electro-magnetic generator with short circuit

被引：0
|
作者：
Shi L.-W. [1 ]
Han Z. [1 ]
Zhou X.-Y. [1 ]
Zhang W.-C. [1 ]
An J.-H. [1 ]
Yan B. [1 ]
机构：
[1] School of Transportation and Vehicle Engineering, Shandong University of Technology, Zibo
来源：
Dianji yu Kongzhi Xuebao/Electric Machines and Control | 2020年 / 24卷 / 10期
关键词：
Doubly salient electro-magnetic generator; E-core stator; Iron loss; Modularization; Polar arc angle;
D O I：
10.15938/j.emc.2020.10.012
中图分类号：
学科分类号：
摘要：
The excitation winding of traditional doubly salient electro-magnetic generator(DSEG) is wound across a plurality of stator poles. There are problems that the excitation magnetic circuit is long, the iron loss is large, and the magnetic paths of the phases are not completely symmetrical. In order to improve the fault isolation capability and realize the relative symmetry, a short magnetic circuit modular DSEG was proposed composed of E-core stator. For the proposed E-core stator, based on the analysis of the influence of rotor pole arc coefficient on the inductance, the stator-to-rotor pole ratio, polar arc angle corresponding to the excitation stator pole, armature stator pole and stator slot were deduced. This lays the foundation for the design of the generator. The finite element software was used to model the transient characteristics of three-phase 9/10-pole and 18/20-pole generator, such as electromotive force and inductance of each phase. According to the Bertotti separation iron loss model, the iron loss values of the new three-phase 18/20-pole and the traditional 18/12-pole generator were calculated, and the simulation shows that the 18/20-pole has low iron loss. Finally, a 18/20-pole generator was prototyped and tested. The experimental results verify the rationality of the theoretical analysis and generator structure. © 2020, Harbin University of Science and Technology Publication. All right reserved.
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页码：109 / 119
页数：10
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