Comparative Analysis of Magnetic Slot Wedges Design for Increasing Performance of Railway Traction Motor
- Authors
- Liu, Huai-Cong; Cho, Sooyoung; Hong, Hyun-Seok; Joo, Kyoung-Jin; Ham, Sang-Hwan; Lee, Ju
- Issue Date
- Nov-2017
- Publisher
- KOREAN INST ELECTR ENG
- Keywords
- Light rail transit; Magnetic slot wedge; Tram-train; Traction motor; Cogging torque; Torque density
- Citation
- JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY, v.12, no.6, pp.2411 - 2418
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- JOURNAL OF ELECTRICAL ENGINEERING & TECHNOLOGY
- Volume
- 12
- Number
- 6
- Start Page
- 2411
- End Page
- 2418
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/151272
- DOI
- 10.5370/JEET.2017.12.6.2411
- ISSN
- 1975-0102
- Abstract
- This study focuses on the effects of using open stator slots in an interior permanent magnet traction motor with a magnetic slot wedge design in order to increase the power density at its base speed. In addition, such a configuration reduces the torque ripple under field-weakening conditions. Five different wedge models were selected, each of which was evaluated using a finite element analysis (FEA). Based on the initial model, we designed magnetic slot wedges for maximum back-EMF and minimum cogging torque. In addition, the d-q axis inductance was slightly altered due to the magnetic slot wedges. Finally, we analyzed the performance of a traction machine under field weakening control. Moreover, we have outlined the requirements for an ideal magnetic slot wedge design.
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