Influence of Demagnetization on Selecting the Optimum Slot/Pole Number Combination for 3MW Surface Mounted Permanent Magnet Vernier Machine

被引：0

作者：

Kumar, D. K. P. ^{[1
]}

Li, G. J. ^{[1
]}

Zhu, Z. Q. ^{[1
]}

Foster, M. P. ^{[1
]}

Stone, D. A. ^{[1
]}

Griffo, A. ^{[1
]}

Odavic, M. ^{[1
]}

Clark, R. ^{[2
]}

Thomas, A. ^{[2
]}

机构：

[1] Univ Sheffield, Dept Elect & Elect Engn, Sheffield, S Yorkshire, England

[2] Siemens Gamesa Renewable Energy Ltd, North Campus,Broad Lane, Sheffield, S Yorkshire, England

来源：

2019 22ND INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS 2019) | 2019年

关键词：

PERFORMANCE; GENERATORS;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Electromagnetic performance of Vernier machines largely depends on choosing the correct slot/pole number combinations. For a given gear ratio, designs with different slot/pole number combinations are possible. This paper investigates the impact of these slot/pole number combinations on electromagnetic performance such as torque, power factor and demagnetization. The study is carried out through detailed finite element analysis on a 3MW outer rotor direct drive generator targeted at wind power application. The torque/cost, torque/mass and efficiency, which are critical parameters for this application, are compared with a conventional direct drive PM generator. The study shows that Vernier designs with lower values of slot/pole number combinations exhibit much better performance in terms of torque and power factor. However, the potential magnet demagnetization and also core saturation limit these designs and hence play a critical role in selecting the optimal slot/pole number combination.

引用

页码：5317 / 5322

页数：6

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