NDLI: Investigation of part winding start used in cage induction motors

Content Provider	IEEE Xplore Digital Library
Author	Helmer, R. Dongdong Wang Ponick, B.
Copyright Year	2008
Description	Author affiliation: Institue for Drive Syst. & Power Electron., Leibniz Univ. of Hanover, Hanover (Helmer, R.; Dongdong Wang; Ponick, B.)
Abstract	The paper presents a new calculation method for induction motors with an unsymmetrical stator winding. In these cases, the usual T-equivalent circuit for stationary operation is no longer valid, but one coil of the machine has to be used as the smallest symmetry unit. Unsymmetrical windings may cause additional asynchronous and synchronous harmonic torques that might e.g. prevent the start-up. The new calculation method was verified by measurements of a large manufacturer of part winding motors where during start-up only a part of the stator winding - e.g. one of two parallel branches per phase - is connected to the mains. The calculation scheme leads to good results in the prediction of the start-up characteristic of such motors.
Starting Page	1
Ending Page	5
File Size	4428725
Page Count	5
File Format	PDF
ISBN	9781424417353
DOI	10.1109/ICELMACH.2008.4799822
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-06
Publisher Place	Portugal
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Coils Induction motors Phase measurement Stator windings Synchronous motors Compressors Power electronics Manufacturing Equivalent circuits Machine windings
Content Type	Text
Resource Type	Article

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