NDLI: A Coupled Thermal–Electromagnetic Analysis for a Rapid and Accurate Prediction of IM Performance

Content Provider	IEEE Xplore Digital Library
Author	Alberti, L. Bianchi, N.
Copyright Year	1982
Abstract	The design of electrical machines for extreme operating conditions must include a thermal analysis coupled with the magnetic analysis. However, the traditional coupling of the thermal and the magnetic models can result in an unacceptable increase in computation time, particularly if finite elements (FEs) are used for the machine analysis. This paper proposes a coupled thermal-magnetic analysis of an induction motor (IM) with the primary goal of achieving a rapid and accurate prediction of the IM performance. Only a minimum set of FE magnetic analyses is carried out so as to determine the parameters of the IM equivalent circuit. These parameters are nonlinear and are adjusted on the basis of the operating point. Then, this equivalent circuit is coupled with a lumped-parameter thermal network to predict the temperature in each part of the IM. Since both the equivalent circuit and thermal network solutions are analytic, the analysis converges very rapidly. At the same time, the FE analysis yields a precise estimation of the IM parameters used in the equivalent circuit. Some experimental results are reported, showing the accurate prediction of the proposed methodology.
Sponsorship	IEEE Industrial Electronics Society
Starting Page	3575
Ending Page	3582
Page Count	8
File Size	742170
File Format	PDF
ISSN	02780046
Volume Number	55
Issue Number	10
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-10-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Performance analysis Magnetic analysis Temperature Induction motors Equivalent circuits Finite element methods Rapid thermal processing Coupling circuits Iron Magnetic flux thermal analysis AC motor drives finite-element (FE) analysis induction motors (IMs) performance prediction
Content Type	Text
Resource Type	Article
Subject	Control and Systems Engineering Electrical and Electronic Engineering Computer Science Applications

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