Embedded finite-element solver for computation of brushless permanent-magnet motors

被引:22
|
作者
Miller, T. J. E. [1 ]
Popescu, Mircea [1 ]
Cossar, Calum [1 ]
McGilp, Malcolm I. [1 ]
Olaru, Mircea [2 ]
Davies, Alan [3 ]
Sturgess, Jonathan [3 ]
Sitzia, Alessandra [3 ]
机构
[1] Univ Glasgow, Dept Elect & Elect Engn, SPEED Lab, Glasgow G12 8LT, Lanark, Scotland
[2] CEFIN, ICNDMF, Bucharest 70314, Romania
[3] AREVA T&D Technol Ctr, Stafford ST17 4LN, England
关键词
brushless permanent-magnet (PM) motors; finite-element method; simulation; torque calculation;
D O I
10.1109/TIA.2008.926199
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper describes the theory underlying the formulation of a "minimum set" of finite-element solutions to be used in the design and analysis of saturated brushless permanent magnet motors. The choice of finite-element solutions is described in terms of key points on the flux-MMF diagram. When the diagram has a. regular shape, a huge reduction in finite-element analysis is possible with no loss of accuracy. If the loop is irregular; many more solutions are needed. This paper describes an efficient technique in which a finite-element solver is associated with a classical d-q-axis circuit model in such a way that the number of finite-element solutions in one electrical half-cycle can be varied between 1 and 360. The finite-element process is used to determine not only the average torque but also the saturated. inductances as the rotor rotates.
引用
收藏
页码:1124 / 1133
页数:10
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