Influence of the neutral in the thermal performance of a three-phase induction motor under unbalanced power supply using the finite element approach

被引：3

作者：

Pinto, JAD ^{[1
]}

Coimbra, AP

Antunes, CL

Fernandez, XML

Donsion, MP

机构：

[1] Univ Coimbra, ISR, Coimbra, Portugal

[2] Univ Coimbra, DEE, Coimbra, Portugal

[3] Inst Super Engn Coimbra, Coimbra, Portugal

[4] ETSI Ind Vigo, DIE, Vigo, Spain

来源：

COMPEL-THE INTERNATIONAL JOURNAL FOR COMPUTATION AND MATHEMATICS IN ELECTRICAL AND ELECTRONIC ENGINEERING | 1998年 / 17卷 / 1-3期

关键词：

electromagnetics; finite element; motor; thermal fields;

D O I：

10.1108/03321649810203305

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

In this paper the influence of the neutral in the thermal performance of a three-phase squirrel cage induction motor fed by asymmetrical supply voltages is studied and analysed. A 2D finite element formulation was used to solve the steady-state heat transfer problem. The eddy currents in the rotor bars were evaluated using a combined 3D finite element approach with analytical expressions. The numerical solutions are compared with measured experimental results obtained in laboratory tests for two load conditions and two unbalanced power supply situations with and without the neutral wire connected.

引用

页码：378 / 381

页数：4