Title :
Space harmonics in unified electrical-machine theory
Author_Institution :
University of Ghent, Engineering School, Ghent, Belgium
fDate :
10/1/1971 12:00:00 AM
Abstract :
The paper deals with the applicability of unified machine theory to electrical machines where space harmonics can not be neglected. It is shown that there exists cases where a linear transformation can de determined to transform the set of time-depended linear differential equations for a machine at constant speed into a set of linear time-invariant differential equations, even if space harmonics are taken into considertation. A criterion for applicability is presented that involves the number of phases, the number of harmonics and the order of the harmonics that have to be considered.
Keywords :
differential equations; harmonics; machine theory; applicability of unified machine theory; constant speed; criterion; electrical machines; linear differential equations; linear transformation; number of harmonics; number of phases; order of harmonics; space harmonics; time dependent equations; time invariant equations;
Journal_Title :
Electrical Engineers, Proceedings of the Institution of
DOI :
10.1049/piee.1971.0264
