In-situ determination of thermal coefficients for electrical machines

Author

Bousbaine, A. ; McCormick, M. ; Low, W.F.

Author_Institution

De Monfort Univ., Leicester, UK

Volume

10

Issue

3

fYear

1995

fDate

9/1/1995 12:00:00 AM

Firstpage

385

Lastpage

391

Abstract

A method for determining the thermal coefficients in electrical machines based upon a new linear lumped parameter model and accurate measurement of temperature and loss densities within the machine is presented. The thermal network is reduced to a system of simultaneous equations. The equivalent thermal coefficients are determined by solving the equations using a singular value decomposition (SVD) method. Results obtained for a 4 kW totally enclosed fan cooled (TEFC) induction motor are presented and compared with established data. The technique is suitable for establishing more accurate thermal coefficients for composite materials and combinations of complex geometrical form

Keywords

cooling; equivalent circuits; induction motors; loss measurement; machine theory; singular value decomposition; temperature measurement; thermal analysis; 4 kW; complex geometrical form; composite materials; electrical machine; equivalent thermal coefficients; linear lumped parameter model; loss densities measurement; singular value decomposition method; temperature measurement; thermal coefficients; totally enclosed fan cooled induction motor; Conducting materials; Conductivity measurement; Cooling; Equations; Heat transfer; Measurement techniques; Temperature distribution; Temperature measurement; Temperature sensors; Thermal conductivity;

fLanguage

English

Journal_Title

Energy Conversion, IEEE Transactions on

Publisher

ieee

ISSN

0885-8969

Type

jour

DOI

10.1109/60.464858

Filename

464858