DocumentCode :
1405022
Title :
Harmonics in a.c. rotating machines
Author :
Robinson, R.B.
Volume :
109
Issue :
16
fYear :
1962
fDate :
9/1/1962 12:00:00 AM
Firstpage :
380
Lastpage :
387
Abstract :
A general approach to harmonic phenomena in a.c. rotating machines is developed. A flux-density component, b = B sin (k¿t ± q¿s + ÿ), where k and q are integral constants, is taken as the central concept-This b-distribution is, in general, harmonic in time and space, and a series of such components can represent any cyclic flux distribution encountered. The effects of such a field in regard to voltage and torque production are analysed, with quite simple results when used with the concept that any machine winding may be treated as equivalent to a series connection of sinusoidal space-harmonic windings. Various common causes of harmonics are next analysed using these general results. Appendix 9.1 develops expressions for harmonic winding turns in terms of the actual winding distribution, while Appendix 9.2 examines some effects of saliency in synchronous machines.
Keywords :
AC machines; harmonic analysis;
fLanguage :
English
Journal_Title :
Proceedings of the IEE - Part C: Monographs
Publisher :
iet
ISSN :
0369-8904
Type :
jour
DOI :
10.1049/pi-c.1962.0054
Filename :
5245429
Link To Document :
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