Title :
In-situ determination of thermal coefficients for electrical machines
Author :
Bousbaine, A. ; McCormick, M. ; Low, W.F.
Author_Institution :
De Monfort Univ., Leicester, UK
fDate :
9/1/1995 12:00:00 AM
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;
Journal_Title :
Energy Conversion, IEEE Transactions on
