NDLI: Direct modeling of the starting process of skewed rotor induction motors using a multi-slice technique

Content Provider	IEEE Xplore Digital Library
Author	Ho, S.L. Fu, W.N. Wong, H.C.
Copyright Year	1986
Abstract	Both the starting current and the starting torque of induction motors cannot be evaluated and measured accurately and readily. In particular, the geometrical features of the skewed rotor bars are very difficult to study if a general 2-D finite element method is used. This paper presents an approach in using a multi-slice, time stepping 2-D eddy-current finite element method to study the starting processes of skewed rotor induction machines. The fields of the multi-slices are being solved en bloc simultaneously, and thus the eddy current effects can be taken into account directly. New forms of the governing equations for the multi-slice model are derived so as to allow the meshes of the multi-slices to be taken as one 2-D mesh. The resultant algorithm is then very similar to that of general 2-D problems. Special time stepping techniques for studying the starting process of motors are also presented. The performances of motors with skewed and nonskewed rotors are shown. It was found that the simulation results correlated very well with test data.
Sponsorship	IEEE Power Engineering Society
Starting Page	1253
Ending Page	1258
Page Count	6
File Size	464475
File Format	PDF
ISSN	08858969
Volume Number	14
Issue Number	4
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-12-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rotors Finite element methods Induction motors Current measurement Torque measurement Bars Induction machines Eddy currents Equations Testing
Content Type	Text
Resource Type	Article
Subject	Energy Engineering and Power Technology Electrical and Electronic Engineering

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