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http://dx.doi.org/10.5370/JEET.2017.12.6.2411

Comparative Analysis of Magnetic Slot Wedges Design for Increasing Performance of Railway Traction Motor  

Liu, Huai-Cong (Dept. of Electrical and Electronic Engineering, Hanyang University)
Cho, Sooyoung (Dept. of Electrical and Electronic Engineering, Hanyang University)
Hong, Hyun-Seok (Dept. of Electrical and Electronic Engineering, Hanyang University)
Joo, Kyoung-Jin (Dept. of Electrical and Electronic Engineering, Hanyang University)
Ham, Sang-Hwan (Dept. of Electrical and Railway Engineering, Kyungil University)
Lee, Ju (Dept. of Electrical and Electronic Engineering, Hanyang University)
Publication Information
Journal of Electrical Engineering and Technology / v.12, no.6, 2017 , pp. 2411-2418 More about this Journal
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.
Keywords
Light rail transit; Magnetic slot wedge; Tram-train; Traction motor; Cogging torque; Torque density;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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