Reduction of Eddy-Current Losses in Fractional-Slot Concentrated-Winding Synchronous PM Machines

被引：73

作者：

Choi, Gilsu ^{[1
]}

Jahns, Thomas M. ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Elect & Comp Engn, 1415 Johnson Dr, Madison, WI 53706 USA

来源：

IEEE TRANSACTIONS ON MAGNETICS | 2016年 / 52卷 / 07期

关键词：

Eddy-current loss reduction; fractional-slot concentrated windings (FSCWs); magnetomotive force (MMF) harmonics; permanent magnet (PM) machines;

D O I：

10.1109/TMAG.2016.2517144

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：

This paper presents the results of an investigation focused on the rotor eddy-current losses of a permanent magnet (PM) synchronous machine that is equipped with fractional-slot concentrated windings (FSCWs). Major spatial harmonics that induce the most significant rotor eddy-current losses are identified and evaluated. Time-stepped finite-element analysis results are presented to compare the predicted losses in the proposed FSCW-PM machine designs. It is shown that the lowest total eddy-current losses in the rotor core and magnets are achieved by introducing flux barriers into the rotor back iron along the d-axis.

引用

页数：4

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