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

In this paper the influence of the neutral in the thermal performance of a threephase squirrel cage induction motor fed by asymmetrical supply voltages is studied and analysed. A 2D finite element formulation was used to solve the steadystate heat transfer problem. The eddy currents in the rotor bar...

Full description

Saved in:
Bibliographic Details
Published in:Compel 1998-06, Vol.17 (3), p.378-381
Main Authors: Pinto, J.A.D., Coimbra, A.P., Antunes, C.L., Fernndez, X.M.L., Donsin, M.P.
Format: Article
Language:English
Subjects:
Electromagnetics
Finite element
Motor
Thermal fields
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper the influence of the neutral in the thermal performance of a threephase squirrel cage induction motor fed by asymmetrical supply voltages is studied and analysed. A 2D finite element formulation was used to solve the steadystate 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.
ISSN:0332-1649
2054-5606
DOI:10.1108/03321649810203305