Rotor Flux-Barrier Geometry Design to Reduce Stator Iron Losses in Synchronous IPM Motors Under FW Operations

被引：67

作者：

Barcaro, Massimo ^{[1
]}

Bianchi, Nicola ^{[1
]}

Magnussen, Freddy ^{[2
]}

机构：

[1] Univ Padua, Dept Elect Engn, I-35131 Padua, Italy

[2] ABB Corp Res, S-72183 Vasteras, Sweden

来源：

IEEE TRANSACTIONS ON INDUSTRY APPLICATIONS | 2010年 / 46卷 / 05期

关键词：

Iron losses; permanent-magnet machines; reluctance machines; synchronous machines; variable-speed drives; MACHINES;

D O I：

10.1109/TIA.2010.2060175

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The interior permanent-magnet (IPM) synchronous motor is characterized by a high rotor anisotropy. Such an anisotropy is the cause of a high harmonic content of the air-gap flux density distribution, almost independent of the main flux. As a consequence, there are fluctuations of the flux density in the stator iron and, consequently, eddy-current iron losses. This aspect is prominently evident during flux-weakening operations, when the armature current weakens the permanent magnet flux and the motor runs above the base speed. This paper presents a complete study of such a phenomenon, including an analytical model and a finite element validation, as well as an experimental confirmation of the predicted stator tooth flux waveforms. Finally, some suggestions are given in order to design an IPM motor exhibiting reduced iron losses during all operating conditions.

引用

页码：1950 / 1958

页数：9

共 13 条

[1] Air-Gap Flux Density Distortion and Iron Losses in Anisotropic Synchronous Motors [J].