Analytical and numerical computation of the no‐load magnetic field in induction motors

Dan M. Ionel (University of Glasgow, Glasgow, Scotland, UK)
Mihai V. Cistelecan (Research Institute for Electrical Machines, Bucharest)


In the paper a comparison between the analytical and numerical method of no‐load computation will be made taking into account the initial hypothesis and computational effort face to the concrete obtainable results. It is concluded that the reduced fixed‐mesh FEM analysis of the induction motors is very suitable for no‐load computation because it relates directly to the well known equivalent circuit parameters. The symmetry of the machine allows for the computation only on a small part of the magnetic circuit so that the time of computation can be reduced even when a relatively fine mesh is used. However, for the optimal design of the motor it appears that analytical methods are very suitable owing to the simplicity and accuracy of the design.



Ionel, D. and Cistelecan, M. (1998), "Analytical and numerical computation of the no‐load magnetic field in induction motors", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 17 No. 2, pp. 225-231.

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Copyright © 1998, MCB UP Limited

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