The Influence of Interspersed a Six-Phase Stator Winding on the MMF Harmonic Analysis.

Document Type : Research Studies

Author

Assistant Professor., Electrical Engineering Department., Faculty of Engineering., El-Mansoura University ., Mansoura., Egypt.

Abstract

The influence of interspersed a six-phase winding by one slot on the space MMF harmonic analysis has been investigated , by means of Goerg's vector diagram. Two types of six-phase windings with either equal to 30or 60 electrical degrees are considered. These two tupes of windings are likely to be existed in practice. The scope of investigation covers the double-layer winding, two-pole, q=3 slots, either for interspersed arrangement or conventional arrangement.
The principles of interspersed the six-phase windings are described and compared with the conventional arrangement in terms of harmonic analysis. From which, it is shown that, controlling the lower belt harmonics of six-phase winding with = 60 and q = 6 slots may be achieved with in significant reduction in the fundamental harmonic magnitude. Moreover, this type of six-phase winding should, therefore, find useful application in the systems, which suffer from their susceptibility to single point or more failures [2].  

Main Subjects