A Schwarz-Christoffel-Based Analytical Method for Electric Machine Field Analysis

被引:101
作者
O'Connell, Tim C. [1 ]
Krein, Philip T. [1 ]
机构
[1] Univ Illinois, Dept Elect & Comp Engn, Grainger Ctr Elect Machinery & Electromech, Urbana, IL 61801 USA
关键词
Analytical model; conformal mapping; electric machines; field reconstruction (FR); induction machines (IMs); Schwarz-Christoffel (S-C) mapping; SC Toolbox; slotted structure; DESIGN; TOOLBOX; MOTORS; MATLAB;
D O I
10.1109/TEC.2009.2025412
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
With the recent increase in the availability and widespread use of inverters, exotic rare earth permanent-magnet materials, and low-cost, precision manufacturing, new design tools are needed to aid engineers in designing state-of-the-art electromechanical systems. For this purpose, recent software advances allow a reexamination of previously intractable analytical solutions to the boundary value problems governing these systems. This paper presents an analytical field analysis method for electric machines utilizing the Schwarz-Christoffel transformation and implemented with the SIC Toolbox software package. With the method, general 2-D electric machine cross sections with linear magnetic materials are analyzed. The method is then extended using superposition to analyze wound-rotor induction machines in the time domain. With this extension, numerous machine geometries, stator excitations, winding and slot harmonics, and torque ripple can be examined.
引用
收藏
页码:565 / 577
页数:13
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